Коррозионностойкое изделие и способ его изготовления

Изобретение относится к металлургии, в частности, к получению изделия из наноструктурированного железосодержащего сплава. Может использоваться для деталей оборудования, используемых в сернистых и кислых средах, обычно связанных с установками для добычи нефти и газа. Порошок железосодержащего сплава на основе Fe-Ni-Cr-Mo измельчают в присутствии оксида иттрия до растворения оксида и проводят термомеханическое уплотнение порошка с формированием уплотненной детали. Уплотненную деталь отжигают при температуре выше температуры растворения хи-фазы и сигма-фазы и охлаждают со скоростью, обеспечивающей подавление выделения хи-фазы и сигма-фазы, с получением изделия, содержащего наноструктурированный железосодержащий сплав на основе Fe-Ni-Cr-Mo, структура которого состоит из матрицы, содержащей ферритную и аустенитную фазы, и расположенных в ней наноэлементов, включающих частицы сложного оксида. Обеспечивается повышение механической прочности и стойкости к коррозии в сернистых и кислых средах. 4 ...

РЕЖУЩИЙ ИНСТРУМЕНТ

Группа изобретений относится к изготовлению режущего инструмента. Режущий инструмент содержит подложку из твердого сплава. Твердый сплав содержит WC и фазу связующего вещества, содержащую один или более из Co, Fe и Ni. Твердый сплав также содержит эта-фазу, содержащую карбиды MeC и/или MeC, где Ме представляет собой один или более металлов, выбранных из W, Mo и металлов фазы связующего вещества. Субстехиометрическое содержание углерода в твердом сплаве составляет от -0,30 до -0,16 мас.%. Способ изготовления режущего инструмента включает обеспечение порошка, формирующего твердые составные части, содержащие порошок WC, обеспечение порошка, выбираемого из Co, Fe и Ni, формирующего фазу связующего вещества, обеспечение жидкости для измельчения, измельчение, сушку, прессование и спекание порошков в твердый сплав. Причем один или более из W, WC, Mo или MoC добавляют в таком количестве, чтобы субстехиометрическое содержание углерода в спеченном твердом сплаве составляло от -0,30 до -0,16 мас.% ...

МУЛЬТИЛОБУЛЯРНАЯ ИНСТРУМЕНТАЛЬНАЯ ОСНАСТКА ИЗ ПОРОШКОВОГО МЕТАЛЛА И СПОСОБ ЕЕ ПОЛУЧЕНИЯ

Изобретение относится к порошковой металлургии, в частности к изготовлению инструментов из порошковых металлов. Из порошковой быстрорежущей стали путем горячего изостатического прессования при давлении 100 атм и температуре 2100°F получают болванку, подвергают ее последующей обработке для получения прутка. Для формирования конечной детали отрезают пруток заданной длины, снимают фаску по меньшей мере на одном конце детали, шлифуют внешний диаметр детали до заданного размера и на одном конце детали экструдированием формируют мультилобулярную конфигурацию. Полученный инструмент является теоретически плотным на 100% и имеет повышенную прочность и ударную вязкость. 2 н. и 13 з.п. ф-лы, 8 ил.

ПОРОШКИ АГЛОМЕРАТОВ ВЕНТИЛЬНЫХ МЕТАЛЛОВ И ОКСИДОВ ВЕНТИЛЬНЫХ МЕТАЛЛОВ И СПОСОБ ИХ ПОЛУЧЕНИЯ

Изобретение относится к порошковой металлургии, в частности к получению порошков агломератов вентильных металлов и субоксидов вентильных металлов для изготовления конденсаторов с твердым электролитом. Спеченная заготовка анода конденсатора получена из порошка агломерата вентильного металла или субоксида вентильного металла и имеет скелетную плотность, превышающую 88% теоретической плотности. Порошок агломерата вентильных металлов и/или субоксидов вентильных металлов получен путем смешивания предшествующих частиц порошков агломератов с мелкочастичными порообразователями. После чего его уплотняют с получением богатого порами, адгезивно связанного агломерата предшествующих частиц, термически удаляют порообразователь, и подвергают адгезивно связанный агломерат температурной обработке при температуре и в течение промежутка времени, достаточных для образования мостиков спекания. Затем как минимум частично спеченный агломерат перерабатывают в порошки агломератов вентильных металлов и/или субоксидов ...

ЭЛЕМЕНТ ФРИКЦИОННЫЙ МЕТАЛЛОКЕРАМИЧЕСКИЙ ДЛЯ МУФТЫ ЭЛЕКТРОПРИВОДА

Полезная модель относится к порошковой металлургии, в частности к спеченным металлокерамическим фрикционным элементам муфт стрелочных электроприводов, частности железнодорожных стрелочных приводов. Спеченный порошковый фрикционный элемент предназначен для запрессовки осадкой в отверстие поводка диска фрикционного муфты стрелочных электроприводов и выполнен в форме призмы с поперечным сечением в виде равностороннего треугольника с закругленными углами из пропитанного маслом металлокерамического фрикционного пористого самосмазывающегося материала. Металлокерамический фрикционный материал получен из смеси порошков, содержащей, мас.%: медь ПМС-1 от 29,90 до 30,10, графит ГК-1 от 0,50 до 2,20, кварц марки А от 4,90 до 5,10, сера сорта 9998 от 0,45 до 0,47, железо ПЖВ2 - остальное. Спеченный фрикционный элемент имеет типоразмер по высоте от 4,4 до 6,9 мм, плотность 5,3-5,7 г/см3и твердость по Бринеллю НВ от 490 до 637 МПа. Обеспечивается стабильная работа фрикционной муфты и повышение надежности ...

ТВЕРДЫЙ СПЛАВ, ИМЕЮШИЙ ПОВЫШАЮЩУЮ ВЯЗКОСТЬ СТРУКТУРУ

Изобретение относится к наноразмерному или ультрамелкозернистому твердому сплаву и может быть использовано для изготовления инструментов. Твердый сплав включает в себя фазу карбида вольфрама, имеющую средний размер зерна от 0,05 до 0,09 мкм, металлокарбидную фазу, выбранную из группы, состоящей из карбида титана (TiC), карбида тантала (TaC), карбида ниобия (NbC), карбида гафния (HfC), карбида циркония, их смесей и смешанных карбидов этих соединений, и фазу связующего металла, причем металлокарбидная фаза, отличная от карбида вольфрама, при комнатной температуре находится в виде кубической кристаллической структуры и составляет в твердом сплаве по меньшей мере 4 об.% относительно общего объема твердого сплава. Изобретение направлено на создание твердого сплава, имеющего улучшенное сочетание твердости и вязкости. 4 н. и 11 з.п. ф-лы, 3 пр., 2 табл., 1 ил.

Способ изготовления электродов для электроискрового легирования и электродуговой наплавки

Изобретение относится к области порошковой металлургии, в частности к получению дисперсно-упрочненного композиционного материала методом, сочетающим горение в режиме самораспространяющегося высокотемпературного синтеза (СВС) и последующее высокотемпературное сдвиговое деформирование в режиме СВС-экструзии продуктов синтеза, и может быть использовано для получения электродов для электроискрового легирования (ЭИЛ) и электродуговой наплавки (ЭДН) при нанесении износостойких покрытий в металлургической, деревообрабатывающей, инструментальной и машиностроительной промышленностях. Способ изготовления электродов для электроискрового легирования и электродуговой наплавки включает приготовление экзотермической смеси порошков, ее прессование в цилиндрические заготовки, помещение заготовок в пресс-форму, инициирование реакции горения, уплотнение в процессе горения продуктов горения давлением 0,01-0,5 МПа и последующую экструзию продуктов горения при давлении 20-100 МПа. Осуществляют приготовление ...

ОЧИЩЕННЫЙ ЛАЗЕРНОЙ ОБРАБОТКОЙ И ПЛАВЛЕНИЕМ ТУГОПЛАВКИЙ МЕТАЛЛ И ЕГО СПЛАВ

... 1. Способ изготовления детали из тугоплавкого металла, включающий: (a) загрузку частиц порошка металла в бункер для подачи в лазерную аддитивную камеру, (b) подача подложки в лазерную аддитивную камеру, (c) подача частиц порошка металла в аддитивную камеру на последовательные точки на подложке по прямой линии, (d) плавление подложки и порошка лучом лазера и создание множественных покрытий регулируемой микроструктуры, (e) трассирование подложки по выбранной зоне с совмещением осаждения и расплавления лучом и создание покрытия регулируемой микроструктуры во множестве слоев, и (f) создание осажденного пласта из покрытия и формирование детали из тугоплавкого металла. 2. Способ по п.1, в котором осажденный пласт, созданный из покрытия, является полностью плотным отложением. 3. Способ по п.1, в котором процесс проводят в инертных условиях. 4. Способ по п.3, в котором условия включают аргон и близкое или ниже атмосферного давление. 5. Способ по п.1, в котором процесс осуществляют в высоком вакууме ...

РЕЖУЩИЙ ИНСТРУМЕНТ

Изобретение относится к области металлургии, а именно к способу изготовления режущего инструмента, содержащего твердосплавную подложку, которая содержит регулируемое количество мелкодисперсной эта-фазы. Способ изготовления режущего инструмента, содержащего твердосплавную подложку, включает следующие этапы: обеспечение первого спеченного твердосплавного тела, содержащего WC, металлическую связующую фазу, при этом металл связующей фазы выбирают из одного или более из Co, Fe и Ni, и эта-фазу, содержащую карбиды MeC и/или MeC, где Me выбирают из W, Mo и одного или более из металлов связующей фазы, при этом субстехиометрическое содержание углерода в твердом сплаве составляет от -0,30 до -0,16 мас.%, термическую обработку упомянутого первого спеченного твердосплавного тела при температуре от 500 до 830°С в течение времени от 1 до 24 ч. Режущий инструмент, изготовленный заявленным способом, имеет повышенную стойкость к трещинам гребня. 2 н. и 13 з.п. ф-лы, 3 ил., 4 табл., 4 пр.

Способ термической обработки режущего инструмента из карбидсодержащих твердых сплавов

Изобретение относится к области металлургии, в частности к изделиям из карбидсодержащих твердых сплавов, применяемым для холодной и горячей механической обработки металлов и сплавов, например, резанием. Способ термической обработки режущей пластины из спеченного карбидсодержащего твердого сплава включает закалку и отпуск. Проводят двойную закалку, включающую сначала подогрев режущей пластины в соляной печи-ванне до температуры 800°С с выдержкой 2 мин, перенос в соляную ванну и нагрев до температуры 1150°С с выдержкой 4 мин и последующее охлаждение на воздухе, а затем повторный подогрев в соляной печи-ванне до температуры 800°С с выдержкой 2 мин, перенос в соляную ванну и окончательный нагрев до температуры 1150°С с выдержкой 4 мин и последующее охлаждение на воздухе, отпуск проводят однократно в соляной ванне при температуре 600°С в течение 30 мин. Обеспечивается повышение прочности и твердости карбидсодержащих твердых сплавов, а также стойкость резцов, выполненных из таких сплавов. 8 ил ...

НОВЫЙ СПОСОБ ПОЛУЧЕНИЯ ЦЕМЕНТИРОВАННОГО КАРБИДНОГО ИЛИ КЕРМЕТНОГО МАТЕРИАЛА

ИНСТРУМЕНТ ТЕХНОЛОГИЧЕСКОЙ ЛИНИИ ИЗ ТВЕРДОГО СПЛАВА, ОБЛАДАЮЩИЙ СОПРОТИВЛЕНИЕМ КОРРОЗИИ И УСТАЛОСТИ

ДЕТАЛЬ, СОДЕРЖАЩАЯ МЕТАЛЛОКЕРАМИЧЕСКУЮ ЧАСТЬ, И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

СПОСОБ ИЗГОТОВЛЕНИЯ ДЕКОРАТИВНОГО ЭЛЕМЕНТА ДЛЯ ЧАСОВ ИЛИ ЮВЕЛИРНОГО ИЗДЕЛИЯ, А ТАКЖЕ ЭЛЕМЕНТ, ИЗГОТОВЛЕННЫЙ С ИСПОЛЬЗОВАНИЕМ ДАННОГО СПОСОБА

МАТРИЧНАЯ БУРОВАЯ КОРОНКА ДЛЯ РАБОТЫ В ТЯЖЕЛЫХ УСЛОВИЯХ

... 1. Устройство, содержащеевнутренний компонент вставки, содержащий верхнюю часть и нижнюю часть, при этом внутренний компонент вставки имеет, по существу, цилиндрическую форму и определяет канал, продолжающийся через верхнюю часть и нижнюю часть; ипокрытие, нанесенное вокруг, по меньшей мере, части поверхности внутреннего компонента вставки.2. Устройство по п.1, в котором покрытие нанесено вокруг поверхности нижней части.3. Устройство по п.1, в котором покрытие нанесено вокруг всей поверхности внутреннего компонента вставки.4. Устройство по п.1, в котором покрытие содержит металлическое покрытие.5. Устройство по п.4, в котором металлическое покрытие изготовлено, по меньшей мере, из одного материала из никеля, латуни, бронзы, меди, алюминия, цинка, золота, молибдена и металлического сплава.6. Устройство по п.1, в котором внутренний компонент вставки содержит сталь.7. Устройство по п.1, в котором толщина покрытия находится в диапазоне от приблизительно 5 мкм до меньше, чем приблизительно 200 ...

СПОСОБ ОБРАБОТКИ ПОВЕРХНОСТИ ЭЛЕКТРИЧЕСКИМ РАЗРЯДОМ

... 1. Способ обработки поверхности электрическим разрядом, включающий использование импульсного электрического разряда между электродом и заготовкой для образования на поверхности заготовки покрытия из материала, составляющего электрод, или из вещества, образующегося в результате реакции материала электрода при импульсном электрическом разряде, характеризующийся тем, что электрод образован из порошка металла или смеси металлов со средним диаметром зерен от 8 мкм до 10 мкм и содержит металл с низкой способностью образования карбида, а покрытие содержит порошок металла или смеси металлов в качестве основной составляющей, причем покрытие формируют в результате импульсного электрического разряда с длительностью импульса тока от 50 до 500 мкс и пиковом значении тока от 2 до 30 А. 2. Способ обработки по п.1, характеризующийся тем, что электрод содержит один металл, представляющий собой или кобальт, или никель, или железо, и другой металл с большей твердостью. 3. Способ обработки по п.1, характеризующийся ...

CERMET-SCHNEIDEVORRICHTUNG.

System und Verfahren zum Herstellen von Untertagewerkzeugkomponenten

Bereitgestellt wird ein Verfahren zum Herstellen eines Segments eines Bohrstrangs, wie etwa eines Rohrwerkzeugs, aus einer Vielzahl von Schichten. Das Verfahren beinhaltet das Anordnen einer Vielzahl von Schichten auf Grundlage einer ausgewählten Länge des Segments. Jede der Vielzahl von Schichten beinhaltet eine Öffnung, die über einem Ausrichtungsmerkmal aufgenommen ist, das eine Bewegung der Vielzahl von Schichten auf zwei oder weniger Freiheitsgrade einschränkt. Es wird ein Verbindungsprozess zum Verbinden der Vielzahl von Schichten durchgeführt, die wenigstens eine Ersatzschicht beinhalten können.

Schlickergiessverfahren zur Herstellung von Metallfiltern

Fuel injecting valve for combustion chamber of internal combustion engine, has swirl duct, injection opening and valve needle guide integrally formed with valve seat body, where swirl duct runs parallel to longitudinal axis of valve

The valve has a valve needle with a valve closure body that is guided in a valve needle guide (36) in an injection-sided end of the valve needle. The closure body cooperates with a valve seat surface that is formed in a valve seat body (5). A swirl duct (35), an injection opening (7) and the valve needle guide are integrally formed with the valve seat body, where the swirl duct runs parallel to a longitudinal axis of the valve. The seat body is producible by a metal spraying casting process. The swirl duct runs in a demolding direction of a spraying casting tool (34). An independent claim is also included for a method for manufacturing a valve seat unit with an injection opening.

Spreizanker

Hydraulischer Nockenwellenversteller, Verwendung sowie Verfahren zur Montage eines zumindest zweiteiligen Rotors eines hydraulischen Nockenwellenverstellers

Es ist ein hydraulischer Nockenwellenversteller (1) mit einem zumindest auf einer Nockenwelle (8) drehfest verbundenen zweiteiligen Rotor (2) offenbart. Der zumindest zweiteilige Rotor (2) ist um eine Achse (A) drehbeweglich und besteht aus einem ersten Rotorelement (4) und einem zweiten Rotorelement (6). Erfindungsgemäß sind ausschließlich vermittels eines Schraubverbands (10) das erste Rotorelement (4) und das zweite Rotorelement (6) gegen die Nockenwelle (8) kraftschlüssig axial vorgespannt.

Pulvermetallurgisch hergestelltes Material mit verbesserter Isotropie der mechanischen Eigenschaften

Besteckteile aus Metall

Verfahren zum Herstellen von Produkten durch Freiform-Lasersintern

Ein Verfahren zum Herstellen metallischer oder nicht-metallischer Produkte durch Freiform-Lasersintern, bei dem die Produkte mittels eines datengesteuert geführten Laserstrahls aus pulverförmigem Werkstoff auf einer Substratplatte schichtweise senkrecht aufgebaut werden, zeichnet sich dadurch aus, dass zwischen der Substratplatte und der Außenfläche des Produkts mindestens eine Stütze aufgebaut wird, die über eine Sollbruchstelle mit der Außenfläche des Produkts verbunden ist, wobei die Sollbruchstelle durch eine Verringerung der Festigkeit der Stütze entlang der Außenkontur des Produkts gebildet wird.

Ball-seat tip for ball point pen

... 944,750. Reservoir pens. GEORG LINZ. Oct. 1, 1962, No. 37190/62. Heading B6P. The ball seat of a ball-point pen consists of sintered material, preferably containing at least one metal. The sintered material may comprise a mixture of metal and carbon. The percentage by weight of carbon may amount to 50 or even 70%. The metals may be titanium, tantalum, osmium, iridium and palladium, alloys such as hard bronze or hard steel; or metal compounds such as oxides, nitrides, borides and carbides, e.g., quartz, corundum, and carborundum.

MANUFACTURE OF VEHICLE TYRE ANTI-SKID STUDS

... 1325136 Production of sintered tyre anti skid studs AIRAM AB OY 26 April 1972 [29 April 1971] 19302/72 Heading C7D Tyre anti skid studs are made by charging a metal powder e.g. Fe or steel into a mould 1 which is then closed with a plunger 6 containing central rod 7 which is pressed into the powder to form a hole for a hard metal insert 9. After compaction, rod 7 is withdrawn and the insert 9 is fed into the formed hole via hole 12 in pusher 11 and rod 7 pushes the insert into position. The assembly is then compacted by plungers 5 and 6, removed from the die and sintered.

Superhard constructions & methods of making same

BEARING MATERIAL AND METHOD OF MANUFACTURING THE MATERIAL

METAL FILTER DISCS

Metal filter sheet is made by a method in which metal particulates are suspended in a fluid medium containing a stabilizing and binding agent. The stable suspension is then filtered to leave a wet cake of the metal particulate which is then dried, compressed, and sintered to produce the metal filter sheet.

Valve seat insert

A two layer valve seat insert and a method for its manufacture is described. The method comprises the steps of preparing two powder mixtures; a first powder mixture for forming the valve seat face later; a second powder mixture for forming the valve seat base layer; sequentially introducing a predetermined quantity of each of said first and said second powder mixtures into a powder compacting die and having an interface therebetween substantially perpendicular to the axis of said die; simultaneously compacting said first and said second powder mixtures to form a green compact having two layers and sintering said green compact, wherein at least one of the chemical composition or the physical characteristics of at least one of said first and second second powder mixtures is adjusted so as to result in said valve seat face layer and said valve seat base layer having substantially the same density after compaction. ...

Forming facsimile formation core samples using three-dimensional printing

Methods including providing an actual formation core sample; determining an internal anatomy of at least a portion of the actual formation core sample; determining a virtual 3D model of the external anatomy of the actual formation core sample in a computer readable format, wherein the virtual 3D model of the external anatomy of the actual formation core sample is represented by successive 2D cross-sectional layers; providing a 3D printer; transmitting the virtual 3D model of the external anatomy of the actual formation core sample to the 3D printer; and printing a facsimile core sample using the 3D printer, thereby replicating at least a portion of the external anatomy of the actual formation core sample.

Polycrystalline diamond compact with gradient interfacial layer

The present disclosure relates to a polycrystalline diamond compact (PDC) including a gradient interfacial layer between a thermally stable diamond (TSP) table and a base, such as a substrate or an earth-boring drill bit body. The gradient interfacial layer has a gradient of coefficients of thermal expansion between that of the diamond and the base. The disclosure also relates to methods of forming a gradient interfacial layer and a PDC containing such a layer.

Systems and methods of fabrication and use of wear-resistant materials

A polycrystalline super hard construction and a method of making same

A cutter insert comprising a polycrystalline diamond (PCD) body bonded to a substrate 36, where the PCD body comprises a working surface, a peripheral surface, a chamfer 40 extending between the working surface and the peripheral surface, a first region substantially free of solvent/catalyst material and a second region that includes solvent/catalyst adjacent to the first region. The interface of the first and second regions is substantially parallel to the plane of the chamfer 40 and the distance 56 from the midpoint of the chamfer 40 to the interface of the first and second regions in a direction perpendicular to the plane of the chamfer is at least 0.4 times the thickness of the PCD body as measured along the peripheral surface of the body form the working surface to its interface with the substrate.

Superhard constructions & methods of making same

A super hard polycrystalline construction 1 (fig.1) comprising a body of polycrystalline super hard material 12, said body having an exposed working surface 14 (fig.1), the body of polycrystalline super hard material comprises a first region 12 adjacent the working surface and a second region 20 adjacent the first region, the first region being more thermally stable than the second region, and a plurality of apertures or channels 50, one or more of said apertures or channels extending from the exposed working surface of the body into the second region. In further embodiments, the channels may be at least partially filled in, the secondary material may comprise a ceramic or refractory metal, the apertures may be regularly spaced or randomly spaced, apertures may have differing depth and the substrate binder may comprise an alloy of Cobalt, Nickel or Chromium.

Title in foreign

Carbide material for cutting devices and associated method of manufacture

Method of heat treating a cemented carbide material

A method of producing a tool comprising a hard-face coating comprises applying a composition of fully sintered granulate grains to a steel substrate to form a cemented carbide material comprising tungsten, silicon, chromium, carbon and cobalt, iron or nickel on the substrate, the cemented carbide material further comprising inclusions of a metastable phase having a nanohardness of at least 12 GPa and a Palmqvist fracture toughness of less than 7 MPa m1/2, the method further comprising heat treating the hardfacing at a temperature of at least 700oC to at least partial decomposition of the metastable phase. A carbide precipitate may be formed in a binder phase. The granulate grains may be applied to the substrate using high temperature plasma spraying or plasma-transferred arc welding. The hard-face coating may comprise tungsten carbide. The tool may be a road or mining pick.

Porous structures

Multi-material joint

A multimaterial component 32, 34, 36 (e.g. an aircraft pylon) may have a nickel based superalloy member at one end 32; a titanium alloy member at the other end 34; and a transition layer 36 therebetween, to create a strong bond with the members 32 & 34. The transition layer 36 may be additively manufactured and comprise i) a bilayer including vanadium and copper (V/Cu); ii) tantalum (Ta); or iii) BAu-4 (Goldbraze 8218). The Ti and Ni-based superalloy members 32 & 34 may be grown, via additive manufacturing, on the transition member 36. A member 32 may comprise a lattice 38, or channels 39 with a fluid coolant, to cool and reduce thermal transfer. Lateral motion constraints (brackets) may reduce shear stress (47, fig 5). A transition member may include VC nanoparticles; or aged Inconel (RTM) and nickel layers (formed by explosion welding, linear friction welding or rotary friction welding).

Manufactoring process of elements of pumps and hydraulic engines.

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

PROCEDURE FOR FASTENING A FROM METALLIC POWDER OF MANUFACTURED METAL STRIP

PROCEDURE FOR THE PRODUCTION OF A SILICON/CALUMINUM SPUTTERING TARGET

CONNECTING ROD FOR SEVERAL MATERIALS

PULVERMETALLURGISCHER ARTIKEL

Lagerbock

Die Erfindung betrifft eine Lagerbockanordnung (3) umfassend zumindest einen Lagerbock (4) für eine Ausgleichswelle (2) eines Verbrennungsmotors und ein rohrförmiges Schutzelement (5), das mit dem Lagerbock (4) verbunden ist und innerhalb dem die Ausgleichswelle (2) anordenbar ist, wobei der Lagerbock (4) einen Grundkörper (8) zur Aufnahme eines Lagerelementes (9) umfasst, wobei der Grundkörper (8) eine äußere Oberfläche (15) aufweist und an einem axialen Endbereich der äußeren Oberfläche (15) ein Aufnahmebereich (16) für ein rohrförmiges Schutzelement (5) ausgebildet ist, der zumindest eine Hinterschneidung (20) aufweist. Das rohrförmige Schutzelement (5) weist im Bereich zumindest einer Stirnfläche (24) ein radial nach innen vorragendes Halteelement (26) auf, das in die Hinterschneidung (20) des Grundkörpers (8) des Lagerbocks (4) eingreift.

Friction lining

Die Erfindung betrifft einen bindemittelfreien, gesinterter Reibbelag (8) für ein Reibbauteil einer Reibbaugruppe, mit einem Reibbelagskörper, der eine metallische Matrix, zumindest einen Abrasivstoff, Festschmierstoffe, und gegebenenfalls zumindest einen Füllstoff umfasst, wobei die Festschmierstoffe durch zumindest zwei unterschiedliche Festschmierstoffe gebildet sind, die ausgewählt sind aus einer Gruppe bestehend aus hexagonales Bornitrid und Metallsulfide mit zumindest einem Metall der Gruppe Wolfram, Eisen, Zinn, Kupfer, Bismut, Antimon, Chrom, Zink, Silber, Mangan, Molybdän.

Bearing cap

Die Erfindung betrifft einen Lagerdeckel (3) für eine geteilte Lageranordnung (1), die neben dem Lagerdeckel (3) einen Lagerstuhl (2) umfasst, wobei der Lagerdeckel (3) Spannflächen (7) aufweist, die im zusammengebauten Zustand der Lageranordnung (1) an Gegenspannflächen (8) des Lagerstuhls (2) anliegen, und die Spannflächen (7) eine sinterraue Oberfläche mit einer gemittelten Rautiefe Rz nach DIN EN ISO 4287 zwischen 4 µm und 50 µm aufweisen.

VERFAHREN ZUM HERSTELLEN EINER EBENEN REIBLAMELLE

GITTERTEIL AUS METALL UND VERFAHREN ZUR HERSTELLUNG EINES GITTERTEILES

We describe a lattice part made of metal and a method for producing a lattice part made of metal or a metal alloy. The lattice has a thickness of less than 1 mm at a size of the gaps of less than 50 mm2. The lattice comprises a connection made of knots, and perpendicular to the lattice surface has lattice bars and lattice knots of the same thickness. A method for the production of a lattice part made of metal, particularly made of light alloy, is characterized by a primary shaping process according to DIN 8580, wherein a mold is formed in the first step, a primary material is introduced in the mold cavity in the second step, the part is removed from the mold in the third step, and the finishing of the metallic lattice part is carried out in the fourth step.

STICKING ON HURRY MADE OF METAL

Part made additive

Die vorliegende Erfindung betrifft ein Bauteil, das eine Vielzahl einzelner, über ein Additives Fertigungsverfahren durch einen energiereichen Strahl zu einer festen Struktur zusammengeschmolzener Pulverpartikel aus Mo, einer Mo-basierten Legierung, W oder einer W-basierten Legierung umfasst, wobei das Bauteil einen Sauerstoffgehalt kleiner oder gleich 0,1 At% aufweist. Zudem betrifft die Erfindung ein Additives Fertigungsverfahren, wobei das Pulver über die Schmelzphase hergestellt ist und einen Kohlenstoffgehalt im Bereich von größer oder gleich 0,15 At% aufweist. Die erfindungsgemäßen Bauteile sind rissfrei und zeichnen sich durch eine hohe Korngrenzenfestigkeit aus.

Reinigungsbürste für ein Förderband

Es wird ein Abstreifelement für ein Förderband (6) mit einem Stahlträger (1) beschrieben, auf dem eine Abstreifleiste (2) aus gesintertem Hartmetall mittels einer Klebeschicht (3) befestigt ist. Um vorteilhafte Klebebedingungen zu schaffen, wird vorgeschlagen, dass die Abstreifleiste (2) einen bei ihrer Herstellung aus einem Hartmetall-Sinterkörper geformten, strukturierten Klebebereich (7) mit einer Klebefläche bildet, die zumindest der eineinhalbfachen Fläche eines unstrukturierten Klebebereichs (7) gleicher Größe entspricht und eine Strukturtiefe (t) kleiner als die Dicke (d) der Klebeschicht (3) aufweist.

Procedure for manufacturing sliding protection organs for vehicle tires

PROCEDURE FOR THE PRODUCTION OF SINTERED MOLDED ARTICLES FROM DIFFERENT MATERIALS

STATIC MICRO MIXER

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

PROCEDURE FOR THE PRODUCTION OF A HIGH-DENSITY SEMI-FINISHED MATERIAL OR CONSTRUCTION UNIT

METHOD OF ENCASING A STRUCTURE IN METAL

Refractory metal annealing bands

Method for producing a medical implant from a magnesium alloy

The invention relates to a method for producing a medical implant, in particular in the form of a bone screw, a bone nail, a bone pin, a plate, a suture anchor, or the like for fastening soft parts, in particular tendons, muscles, and ligaments, to a bone, or in the form of an endoprosthesis or at least a part thereof, from a magnesium alloy having a magnesium fraction of at least 80 wt%, in particular of at least 90 wt%, comprising the following steps: a) melting the magnesium alloy to obtain an alloy melt, b) atomizing the alloy melt under a protective-gas atmosphere and cooling the atomized alloy melt to below the solidification point thereof in order to obtain an alloy powder, c) shaping the alloy powder by pressing to obtain an alloy green body, d) extruding the alloy green body to obtain a magnesium alloy molded part, and e) producing the medical implant from the magnesium alloy molded part. The invention further relates to a medical implant that can be obtained according to the aforementioned ...

Powdered material preform and process of forming same

A powdered material preform includes a pressed powdered metal or other powdered material, where the preform is processed and sealed so that a skin or shell is formed at the outer surface of the preform (such as via melting an outer layer or surface of the preform or via adding an outer layer around the preform or via a combination thereof), with an inner portion of the preform comprising pressed powdered material. The skinned preform may comprise a shape that is generally similar to that of a final product or part to be formed, or may simply comprise a puck or shape of approximately the same mass of the shape being formed, and the skinned preform is suitable for use in subsequent densification and/or consolidation processes or combinations thereof to form the final, fully processed part.

System and method for manufacturing downhole tool components

A method is provided for manufacturing a segment of a drill string, such as a tubular tool, from a plurality of layers. The method includes arranging a plurality of layers based on a selected length of the segment. Each of the plurality of layers includes an aperture that is received over an alignment feature that restricts movement of the plurality of layers to two or fewer degrees of freedom. A joining process is performed to join the plurality of layers, which may include at least one replacement layer.

Method for making a perfected medical model on the basis of digital image information of a part of the body

Precisely repositionable bearing cap

PROCESS AND APPARATUS FOR THE MANUFACTURE OF SINTERED TUNGSTEN CARBIDE TOOL TIPS

POWDER-METALLURGY STEEL ARTICLE WITH HIGH VANADIUM-CARBIDE CONTENT

A powder metallurgy tool steel article for use in applications requiring high wear resistance having a carbide content of 10 to 18 volume percent of substantially all MC-type vanadium carbides, which carbides are substantially spherical and uniformly dispersed; the carbon content of the article is balanced relative to the carbide formers vanadium, chromium and molybdenum to provide an amount of carbon in the matrix of the article sufficient to permit the article to be heat treated to a hardness of at least 56 Rc. ***** ...

CUTTING ELEMENT WITH WEAR RESISTANT CROWN

A cutting element adapted to be used in a rotary drill bit is made by positioning in an appropriately shaped die cavity a quantity of a mixture of tungsten carbide and 4 to 11 percent cobalt in the shape of a crown for defining an outer surface for a tip portion of the cutting element using a pressure of less than about 600 pounds per square inch; positioning in the cavity a quantity of a mixture of tungsten carbide and 12 to 17 percent cobalt sufficient to form almost all of a base portion and at least an inner part of the tip portion for the cutting element; pressing the two quantities of the mixtures together and into the die at pressures in the range of about 10 to 15 tons per square inch; and sintering the pressed insert to form the cutting element.

SINTERED METAL ULTRASONIC BONDING TIPS

METHOD FOR MANUFATURING OF POLYCRYSTALLINE SUPERHARD CUTTER UTILIZING INTERNAL FRAME

A method for manufacturing a cutter includes: placing a can into a press, the can comprising superhard powder, a metallic frame embedded in the superhard powder, and catalyst; operating the press to sinter the superhard powder, thereby forming a polycrystalline superhard cutting head; and exposing at least a portion of the polycrystalline superhard cutting head and the frame to acid for removing at least a portion of the catalyst from the polycrystalline superhard cutting head. The leaching frame comprises a plurality of branches. Each branch has an inner end located adjacent to a front face of the cutting head and an outer end located adjacent to a side of the cutting head. The acid tunnels into the polycrystalline superhard cutting head by dissolving the leaching frame.

TITANIUM-BASED POWDER, AND INGOT AND SINTERED ARTICLE THEREOF

Provided are a titanium powder having excellent fluidity and shape retention properties, and an ingot and a sintered article obtained using the titanium powder as the starting material. The titanium powder has an average circularity of 0.815 or greater but less than 0.870, a particle diameter CV value of 22-30, and an angle of repose of 29-36°.

A WEAR RESISTANT COMPONENT AND A DEVICE FOR MECHANICAL DECOMPOSITION OF MATERIAL PROVIDED WITH SUCH A COMPONENT

A wear resistant component (4) for comminution of particulate material, comprising a steel body (6) and a leading portion (7) of cemented carbide attached to a front portion of said steel body (6). The wear resistant component (4) comprises a wear resistant coating (8) of a metal matrix composite attached to at least one face of said steel body (6) in connection to said leading portion (7).

METHOD FOR MANUFACTURING OBJECTS USING POWDER PRODUCTS

A method for manufacturing a three-dimensional part. The method includes: performing partial densification processing on loose machining powder, to form a densified and sealed enclosure, where there is still loose machining powder accommodated inside the enclosure; and performing overall densification processing on the enclosure and the machining powder inside the enclosure, so as to implement metallurgical bonding between the machining powder inside the enclosure and the enclosure during the densification, thereby forming a target three-dimensional part.

PRE-DIFFUSED MANDREL COATING TO PROVIDE ENHANCED BONDING BETWEEN METALLIC AND COMPOSITE COMPONENTS

Drill bits and associated methods of manufacture and use employ a pre-diffused mandrel bonded to a composite metal-matrix material. The pre-diffused mandrel includes a chemically altered surface composition that enhances the bond with the composite metal-matrix component formed by infiltrating a metal-matrix component with a binder. The chemically altered surface may be configured to reduce binder-rich zones adjacent the mandrel, mechanically interlock the with the composite metal-matrix component or prevent the formation of brittle intermetallic particles along the bond.

SYSTEM AND METHOD FOR MANUFACTURING DOWNHOLE TOOL COMPONENTS

A method is provided for manufacturing a segment of a drill string, such as a tubular tool, from a plurality of layers. The method includes arranging a plurality of layers based on a selected length of the segment. Each of the plurality of layers includes an aperture that is received over an alignment feature that restricts movement of the plurality of layers to two or fewer degrees of freedom. A joining process is performed to join the plurality of layers, which may include at least one replacement layer.

REDUCED IRON POWDER AND METHOD FOR PREPARING SAME AND BEARING

Provided is reduced iron powder which reduces coarse inclusions, has excellent moldability, high porosity after sintering, and excellent reactivity per unit mass, and which can be effectively used as a reaction material even into the particles. The apparent density of the reduced iron powder is within the range of 1.00-1.40 Mg/m3.

IMPROVING TOUGHNESS OF POLYCRYSTALLINE DIAMOND BY INCORPORATION OF BULK METAL FOILS

A cutting element include a substrate and a diamond compact including at least two polycrystalline diamond portions separated by at least one metal carbide foil portion. The cutting element is made by placing diamond powder in a reaction container, placing a thin metal layer in the reaction container above or around the diamond powder and binder, placing additional diamond powder in the reaction container above or around the thin metal layer, and placing a pre-sintered substrate containing binder into the reaction container above all diamond powder and thin metal layer components. The assembled reaction container is put into a reactor and is subjected to a high-temperature high-pressure sintering process. The binder in the pre- sintered substrate sweeps through to sinter the first diamond portion, and then reacts with the thin metal layer to form a metal carbide, and then the binder continues to sweep through to sinter the second diamond portion.

METHOD FOR PRODUCING A COMPONENT

A preform is produced by an additive layer manufacturing process. The preform is then subjected to a flow forming process to lengthen the preform and improve its mechanical properties.

METHOD OF FORMING BY COLD WORKED POWDERED METAL FORGED PARTS

A method for manufacturing metal by a cold worked powdered metal forging process is disclosed. A certain amount of a powdered metal is measured out and then compacted into a briquette or other compact. The briquette is then sintered to form a preform. After sintering, the preform is then cold worked to increase its strength. After cold working, the preform is forged to form the desired part. The resultant part has improved fatigue life, surface finish, and metallurgical characteristics.

METHOD OF FORMING BY COLD WORKED POWDERED METAL FORGED PARTS

A method for manufacturing metal by a cold worked powdered metal forging process is disclosed. A certain amount of a powdered metal is measured out and then compacted into a briquette or other compact. The briquette is then sintered to form a preform. After sintering, the preform is then cold worked to increase its strength. After cold working, the preform is forged to form the desired part. The resultant part has improved fatigue life, surface finish, and metallurgical characteristics.

Verfahren zur Herstellung von gesinterten, porösen Gleitkörpern.

Verfahren zur Herstellung einer Kontaktelektrode für Halbleiteranordnungen und nach diesem Verfahren hergestellte Kontaktelektrode

Verfahren zur Herstellung von Formkörpern aus gesintertem Hartmetall

Verfahren zum Herstellen eines Eisenpulvers und Verwendung des Eisenpulvers

Method for producing coin blanks

A method of providing a decorated of a timepiece or jewellery, and element made by the method.

Le procédé selon l’invention permet de réaliser un élément décoré d’une pièce d’horlogerie ou de bijouterie. Cet élément décoré peut être par exemple un cadran de montre. Le procédé comprend les étapes de se munir d’un substrat de base, et d’effectuer sur ledit substrat de base un micro-usinage d’un moule ou de cloisons décoratives selon un motif programmé, et de remplir le moule ou les cloisons décoratives d’au moins un matériau de remplissage pour obtenir l’élément décoré. Le matériau de remplissage peut être de l’émail. L’invention concerne également un élément décoré.

Composition de moulage par métallurgie des poudres destinée notamment à la fabrication d'articles de décor ou d'habillage en cermet massif fritté et lesdits particles de décor ou d'habillage en cermet massif fritté.

L'invention concerne une composition de moulage par métallurgie des poudres destinée notamment à la fabrication d'articles de décor ou d'habillage en cermet massif fritté, comprenant une poudre inorganique destinée à former le cermet et un liant organique. Ladite poudre inorganique est constituée en poids de 35% à 95% d'au moins une phase céramique à base de céramique choisie parmi le groupe constitué de TiC, TiCN, TiN et leurs mélanges, et de 5% à 65% d'une phase métallique, ladite phase métallique étant constituée en poids d'au moins 40% de fer, de 15% à 45% de chrome, de 0.1% à 25% de molybdène, de 0.1% à 10% de silicium, de 0 à 10% de bore, et de 0 à 10% de niobium, les quantités respectives des éléments de la phase métallique étant telles que leur somme est égale à 100% en poids de la phase métallique. La présente invention concerne également un article de décor ou d'habillage en cermet massif fritté réalisé à partir d'une telle composition de moulage ainsi qu'un procédé de fabrication ...

Molding composition by powder metallurgy intended in particular for the manufacture of articles of decoration or trim cermet sintered solid particle and said decorative trim or cermet sintered bulk.

L’invention concerne une composition de moulage par métallurgie des poudres destinée notamment à la fabrication d’articles de décor ou d’habillage en cermet massif fritté, comprenant une poudre inorganique destinée à former le cermet et un liant organique. Ladite poudre inorganique est constituée en poids de 35% à 95% d’au moins une phase céramique à base de céramique choisie parmi le groupe constitué de TiC, TiCN, TiN et leurs mélanges, et de 5% à 65% d’une phase métallique, ladite phase métallique étant constituée en poids d’au moins 40% de fer, de 15% à 45% de chrome, de 0.1% à 25% de molybdène, de 0.1% à 10% de silicium, de 0 à 10% de bore, et de 0 à 10% de niobium, les quantités respectives des éléments de la phase métallique étant telles que leur somme est égale à 100% en poids de la phase métallique. La présente invention concerne également un article de décor ou d’habillage en cermet massif fritté réalisé à partir d’une telle composition de moulage ainsi qu’un procédé de fabrication ...

Turbocharger, method of manufacturing a turbocharger assembly and its use.

Turbolader, mit einer Turbine zur Entspannung eines ersten Mediums, mit einem Verdichter zur Verdichtung eines zweiten Mediums unter Nutzung von in der Turbine bei Entspannung des ersten Mediums gewonnener Energie, wobei ein Turbinengehäuse und ein Verdichtergehäuse jeweils mit einem zwischen denselben angeordneten Lagergehäuse verbunden sind, wobei das Turbinengehäuse und/oder das Verdichtergehäuse und/oder das Lagergehäuse eine statorseitige Baugruppe bildet und/oder eine statorseitige Baugruppe (10) aufnimmt, die der Schmierung und/oder Wärmeleitung und/oder Abdichtung dient. Die jeweilige statorseitige Baugruppe (10), die der Schmierung und/oder Wärmeleitung und/oder Abdichtung dient, ist durch ein generatives Fertigungsverfahren hergestellt.

Sintering process of an austenitic stainless steel.

La présente invention se rapporte à un procédé de fabrication d’une pièce en acier inoxydable austénitique comportant successivement les étapes suivantes: 1) Mise à disposition d’une poudre et frittage de ladite poudre pour former un alliage fritté à structure austénitique; ledit alliage ayant une teneur en azote supérieure ou égale à 0,1% en poids; 2) Traitement de l’alliage fritté pour transformer la structure austénitique en une structure ferritique ou biphasée ferrite + austénite sur une couche (2) en surface de l’alliage; 3) Traitement de l’alliage fritté pour transformer la structure ferritique ou biphasée ferrite + austénite obtenue à l’étape 2) en une structure austénitique et former après refroidissement la pièce (1) présentant sur la couche (2) soumise aux transformations des étapes 2) et 3) une densité supérieure à celle du cœur (3) de la pièce (1). La présente invention se rapporte également à la pièce issue du procédé qui présente en surface une couche très dense (densité relative ...

Support pour un procédé de frittage d'un corps, notamment pour l'horlogerie, et procédé utilisant un tel support.

L'invention se rapporte à un support pour une étape de frittage d'un procédé de réalisation d'une pièce, notamment pour l'horlogerie, à partir d'un corps (2) vert présentant une forme initiale, le corps (2) subissant une rétractation de la forme initiale à une forme finale pendant l'étape de frittage, le support (1) présentant au moins une face de soutien (9) du corps (2) pendant l'étape de frittage, caractérisé en ce que la face de soutien (9) présente une géométrie en relief configurée pour soutenir le corps (2) de sa forme initiale à sa forme finale, afin qu'il garde sa forme et ses proportions avec un coefficient de rétractation lié au frittage. L'invention se rapporte aussi à un procédé de frittage utilisant ce support.

PRODUCTION OF MUCH LAYER MICROCOMPONENTS OF ARBITRARY SHAPE FROM SEVERAL MATERIALS

Bent metal member and a method for its manufacture

A bent metal member which is obtained by bending accompanied by heat treatment of a zinc-based coated metal material and which is suitable for use in components of automobiles due to having a high strength and excellent post-painting corrosion resistance is manufactured. The outer surface of a tubular metal material having on its surface a Zn—Fe alloy coating layer with a coating weight of 30-90 g/m 2 per side, an Fe content of 8-20%, and a surface roughness Ra of at most 0.8 μm is supported at two locations spaced in the axial direction of the metal material so that the material can move in its axial direction, the metal material is heated between the two locations to a temperature range of at least the Ac 3 point at a heating speed such that the rate of temperature increase is at least 3.0×10 2 ° C. per second while feeding the metal material in its axial direction, holding so that the length of time for which the surface of the metal material is at 8.0×10 2 ° C. or higher is at most 2 seconds, then rapid cooling is carried out, and the position of the downstream of the two locations in the feed direction of the metal material is two-dimensionally or three-dimensionally varied to impart a bending moment to the heated portion of the metal material. A bent metal member having a Zn-based layer which contains an η phase and which has a coating weight of 30-90 g/m 2 per side, an Fe content of 8-35%, 35%, and a surface roughness Ra of at most 2.0 μm can be manufactured.

Process for producing a 3-dimensional component by selective laser melting (slm)

A process produces a 3-dimensional component ( 16 ) by selective laser melting (SLM), in which the component ( 16 ) is formed on a foundation with a surface, e.g., a platform ( 10 ) or a support, which in particular is a component of the same type which has already been produced previously, by successively melting layers of a first metal powder to form a sequence of stacked layers. The process is substantially simplified and made more flexible by virtue of the fact that the separation of the finished component ( 16 ) from the surface of the platform ( 10 ) or the support thereof is simplified by providing a separating layer ( 11 ) between the component ( 16 ) and the platform ( 10 ) or the support, this separating layer making it possible to separate the finished component ( 16 ) from the platform ( 10 ) or the support without damaging the finished component ( 16 ).

Carbon molds for use in the fabrication of bulk metallic glass parts and molds

Novel molds and methods for Bulk Metallic Glass (BMG) molding using carbon templates obtained from pyrolyzed materials are provided. The method employs the Carbon MEMS (C-MEMS) technique to derive molds of different geometries and dimensions. The resultant carbon structures are stable at very high temperatures and have sufficient mechanical strength to be used as master molds for the thermoplastic forming of BMGs.

Methods of forming molybdenum sputtering targets

In various embodiments, tubular sputtering targets are produced by forming a tubular billet at least by pressing molybdenum powder in a mold and sintering the pressed molybdenum powder, working the tubular billet to form a worked billet, and heat treating the worked billet.

Method for production of titanium welding wire

A process for producing a weldable titanium or titanium alloy wire characterised in that full consolidation of the wire is achieved via solid-state processing entailing compaction, extrusion, and rolling, whereby melting of the constituent titanium sponge particles does not occur.

Process for Producing Metallic Components

A process for producing a metallic component with an opening or a hollow space by selective laser sintering or laser melting includes melting a metallic powder in layers at appropriate cross-sectional regions by using laser radiation. After the laser sintering or laser melting process, the component is subjected to a fracture splitting process, in which the component is fractured into at least two fractional parts along a fracture line and then the at least two fractional parts are connected to one another at the sites of fracture to form the component. The fracture line contacts or passes through the opening or the hollow space.

Turbine shroud segment

A turbine shroud segment is metal injection molded (MIM) about a core to provide a composite structure. In one aspect, the core is held in position in an injection mold and then the MIM material is injected in the mold to form the body of the shroud segment about the core. Any suitable combination of materials can be used for the core and the MIM shroud body, each material selected for its own characteristics. The core may be imbedded in the shroud platform to provide a multilayered reinforced platform, which may offer resistance against crack propagation.

Mold Halves with Metal-Matrix Composite At Feature Areas

A mold half, especially for blow molding of thermoplastic articles, has a mold body defined at least in part by a single piece of aluminum or aluminum alloy mold material having a cavity and a pinch-off or other feature area and further having a metal-matrix composite (MMC) layer formed integrally in the mold body at the pinch-off or other feature area. A mold is fabricated from two mated mold halves. A process of producing a mold half involves machining a single piece of mold material to provide a mold body having a cavity and a pinch-off or other feature area, the pinch-off or other feature area being of smaller dimension than required for the mold half, integrally forming a metal-matrix composite layer in the pinch-off or other feature area to build up the pinch-off or other feature area to at least a dimension required for the mold half. The metal-matrix composite comprises an aluminum-nickel alloy matrix (e.g. AI-12Si alloy alloyed with Ni) having WC particles embedded therein or a aluminum matrix (e.g. AI-12Si alloy) having TiC particles embedded therein and has greater wear resistance, greater strength, greater toughness or any combination thereof than the mold material.

METHODS FOR PROCESSING NANOSTRUCTURED FERRITIC ALLOYS, AND ARTICLES PRODUCED THEREBY

A formed article comprising a nanostructured ferritic alloy is provided. Advantageously, the article is not formed via extrusion, and thus, cost savings are provided. Methods are also provided for forming the article, and the articles so produced, exhibit sufficient continuous cycle fatigue crack growth resistance and hold time fatigue crack growth resistance to be utilized as turbomachinery components, and in particular, large, hot section components of a gas or steam turbine engines. In other embodiments, a turbomachinery component comprising an NFA is provided, and in some such embodiments, the turbomachinery component may be extruded. 1. A method of forming a turbomachinery component comprising a nanostructured ferritic alloy , the method comprising the steps:melting an alloy by vacuum induction melting to form a melt of the alloy where the alloy is any of martensitic, austenitic, duplex, or ferritic steel, atomizing the melt of the alloy to form an atomized powder of the alloy, milling the atomized powder of the alloy in the presence of an oxide until the oxide is dissolved into the alloy;hot isostatic pressing the powder under an inert environment to form a hot isostatic pressed nanostructured ferritic alloy preform, andforging the nanostructured ferritic alloy preform into a turbomachinery component wherein the steps are performed in the absence of extrusion.2. The method of claim 1 , wherein the atomizing comprises at least one of gas atomization claim 1 , water atomization claim 1 , rotating electrode atomization claim 1 , or combinations thereof.3. The method of claim 1 , wherein the oxide is selected from the group consisting of yttrium oxide claim 1 , aluminum oxide claim 1 , zirconium oxide claim 1 , hafnium oxide or combinations thereof.4. The method of claim 1 , wherein the hot isostatic pressing is continued to produce a nanostructured ferritic alloy preform having a density greater than 95% of theoretical density.5. The method of claim 1 , wherein ...

ROLLING BEARING AND MANUFACTURING METHOD THEREOF

The present invention provides a rolling bearing which is excellent in strength, rigidity, heat resistance, and dimensional accuracy while being able to hold rolling elements in a stable manner and reduce manufacturing cost without degrading performance as a bearing and a manufacturing method for the rolling bearing. To achieve the object, the present invention adopts a rolling bearing including a cage provided with a plurality of pockets for housing and hold the rolling elements arranged at specific intervals in a circumferential direction in a peripheral wall of a cylindrical member. The cage is formed integrally by metal powder injection molding; and the cage includes a housing space for the rolling elements and a rolling-element fall-out prevention structure is formed by applying compressive working to an outer edge of the housing space in a direction from an outer circumferential surface toward a radial center of the cage. 1. A rolling bearing comprising a cage provided with a plurality of pockets for housing and hold rolling elements arranged at specific intervals in a circumferential direction in a peripheral wall of a cylindrical member , wherein:the cage is formed integrally by metal powder injection molding; andthe cage includes a housing space for the rolling elements and a rolling-element fall-out prevention structure provided in the housing space.2. The rolling bearing according to claim 1 , wherein the rolling-element fall-out prevention structure is formed by applying compressive plastic working to an outer edge of the housing space in a direction from an outer circumferential surface toward a radial center of the cage.3. The rolling bearing according to claim 1 , wherein the rolling-element fall-out prevention structure is formed by applying plastic bending to projections radially protruding from an outer circumferential surface of the cage to outward.4. The rolling bearing according to claim 1 , wherein:the rolling-element fall-out prevention ...

Molding tool with conformal portions and method of making the same

A mold core package for forming a molding tool includes a plurality of stacked particulate layers having a binding agent. The plurality of stacked particulate layers form sacrificial walls defining a mold cavity. A sacrificial displacement line and a sacrificial displacement body extend from the mold core package and are adapted to displace a molten material applied to the mold core package.

Collimator for x-ray, gamma, or particle radiation

A collimator for x-ray, gamma, or particle radiation has a plurality of collimator elements made of a tungsten-containing material to reduce scattered radiation. At least one collimator element consists of a tungsten alloy having a tungsten content of 72 to 98 wt.-%, which contains 1 to 14 wt.-% of at least one metal of the group Mo, Ta, Nb and 1 to 14 wt.-% of at least one metal of the group Fe, Ni, Co, Cu. The collimator also has very homogeneous absorption behavior at very thin wall thicknesses of the collimator elements.

SINTERED BEARING AND PREPARATION METHOD THEREOF

The present invention relates to a sintered bearing and a preparation method thereof, wherein the method comprises: a step for forming a mixed powder by mixing metal powder, kish graphite, and lubricant; forming a molded body by applying pressure to the mixed powder; forming a sintered body by sintering the molded body; and impregnating the sintered body in oil. The invention is prepared by adding 0.01-10 parts by weight of kish graphite to metal powder and thus provides excellent abrasion resistance, strength, and self lubricity. 1. A sintered bearing , comprising metal powder , kish graphite , and a lubricant.2. The sintered bearing of claim 1 , comprising claim 1 , based on a total weight thereof claim 1 , 0.01˜10 parts by weight of the kish graphite claim 1 , 0.01˜1.0 parts by weight of the lubricant claim 1 , and a balance of the metal powder.3. The sintered bearing of claim 1 , wherein the metal powder is one or more selected from the group consisting of a pure iron system claim 1 , an iron-copper system claim 1 , an iron-carbon system claim 1 , an iron-carbon-copper system claim 1 , a bronze system claim 1 , and an iron-carbon-copper-nickel system.4. The sintered bearing of claim 1 , wherein the kish graphite is a byproduct of iron production.5. A method of manufacturing a sintered bearing claim 1 , comprising:mixing metal powder, kish graphite, and a lubricant, thus forming a powder mixture;applying pressure to the powder mixture, thus forming a molded body;sintering the molded body, thus forming a sintered body; andimpregnating the sintered body with oil.6. The method of claim 5 , wherein the powder mixture comprises claim 5 , based on a total weight thereof claim 5 , 0.01˜10 parts by weight of the kish graphite claim 5 , 0.01˜1.0 parts by weight of the lubricant claim 5 , and a balance of the metal powder.7. The method of claim 5 , wherein the metal powder is one or more selected from the group consisting of a pure iron system claim 5 , an iron-copper ...

SINTERED ALLOY FOR VALVE SEAT AND MANUFACTURING METHOD OF EXHAUST VALVE SEAT USING THE SAME

A sintered alloy for a valve seat may be manufactured using a method including: mixing MnS with an alloy powder for a valve seat including C at 0.8-1.2 wt %, Ni at 2.0-4.5 wt %, Cr at 3.0-5.0 wt %, Mo at 16.0-20.0 wt %, Co at 9.0-13.0 wt %, V at 0.05-0.15 wt %, S at 0.2-0.8 wt %, Fe, and additional inevitable impurities; making a first shape by forming the mixed materials; pre-sintering the first formed shape; making a secondary shape by re-pressing the first pre-sintered shape; main-sintering the secondary shape; and tempering the main-sintered secondary shape. 1. A sintered alloy for valve seat , comprising:MnS is added to an alloy that comprises C at 0.8-1.2 wt %, Ni at 2.0-4.5 wt %, Cr at 3.0-5.0 wt %, Mo at 16.0-20.0 wt %, Co at 9.0-13.0 wt %, V at 0.05-0.15 wt %, S at 0.2-0.8 wt %, Fe, and additional inevitable impurities.2. The sintered alloy for valve seat of claim 1 , whereinan amount of MnS of 0.2-2.5 parts by weight with respect to 100 parts by weight of the sintered alloy is added.3. The sintered alloy for valve seat of claim 2 , whereinthe size of MnS particles is smaller than 12 μm.4. The sintered alloy for valve seat of claim 3 , whereinthe MnS comprises Mn at 60-65 wt % and S at 35-40 wt %.5. A manufacturing method of valve seat claim 3 , the method comprising:mixing MnS with an alloy powder for a valve seat comprising C at 0.8-1.2 wt %, Ni at 2.0-4.5 wt %, Cr at 3.0-5.0 wt %, Mo at 16.0-20.0 wt %, Co at 9.0-13.0 wt %, V at 0.05-0.15 wt %, S at 0.2-0.8 wt %, Fe, and additional inevitable impurities;making a first shape by forming the mixed materials;pre-sintering the first formed shape;making a secondary shape by re-pressing the first pre-sintered shape;main-sintering the secondary shape; andtempering the main-sintered secondary shape.6. The method of manufacturing a valve seat of claim 5 , whereinthe amount of MnS is from 0.2 to 2.5 parts by weight with respect to 100 parts by weight of the alloy powder.7. The manufacturing method of valve seat of ...

GENERATIVELY PRODUCED TURBINE BLADE AND DEVICE AND METHOD FOR PRODUCING SAME

The present invention relates to a method for producing gas turbine components, in particular aircraft turbine components, preferably low-pressure turbine blades, from a powder which is sintered selectively in layers by locally limited introduction of radiant energy, wherein the sintering is carried out in a closed first housing (), so that a defined atmosphere can be set, wherein the powder or at least a part of the powder is generated in the same first housing () or in a second housing connected to the first housing in a gas-tight manner. The invention further relates to a corresponding apparatus and to a gas turbine blade produced thereby. 110.-. (canceled)11. A method for producing a gas turbine component , wherein the method comprises producing the component from a powder which is sintered selectively in layers by locally limited introduction of radiant energy , and wherein the sintering is carried out in a closed , first housing so that a defined atmosphere can be set , and the powder or at least a part of the powder is produced in the same first housing or in a second housing connected to the first housing in a gas-tight manner.12. The method of claim 11 , wherein the sintering is effected by a laser beam or an electron beam.13. The method of claim 11 , wherein a plurality of radiation beams for introducing radiant energy are used at the same time for sintering.14. The method of claim 11 , wherein a substantially oxygen-free atmosphere or a vacuum is set.15. The method of claim 11 , wherein a metallic powder is used.16. The method of claim 11 , wherein a powder of TiAl alloy or a powder for producing a TiAl alloy is used.17. The method of claim 11 , wherein the powder is mechanically alloyed and/or a particle size distribution thereof is set.18. The method of claim 11 , wherein differently alloyed powder and/or powder set in terms of powder size is sintered in different regions of the component.19. The method of claim 11 , wherein the powder is produced by ...

BUILT-UP COMPOSITE STRUCTURES WITH A GRADED COEFFICIENT OF THERMAL EXPANSION FOR EXTREME ENVIRONMENT APPLICATIONS

An integrated composite structure with a graded coefficient of thermal expansion (CTE) is formed by selecting a plurality of layers of materials with a graded CTE and using build-up (bottom-up) fabrication approaches such as metal deposition or powder metallurgy to produce a CTE-graded layered composite preform, which is then consolidated and heat treated to create the CTE graded integrated composite billet or near net shape. The integrated composite billet or near net shape is then processed to produce a first surface for attachment of a first structural member having a first CTE and to produce a second surface of for attachment of a second structural member having a second CTE. 1. A method for producing an integrated composite interface with a graded coefficient of thermal expansion (CTE) comprising the steps of:selecting a plurality of layers of graded CTE;building up the layers to form a CTE graded integrated composite employing powder metallurgy processing; andprocessing the integrated composite to produce a first surface for attachment of a first structural member having a first CTE and to produce a second surface for attachment of a second structural member having a second CTE.2. A method for producing an integrated composite interface with a graded coefficient of thermal expansion (CTE) comprising the steps of:using powder metallurgy to produce a CTE graded preform;consolidating the preform;heat treating the consolidated preform to create a CTE graded integrated composite billet; andforming the billet to provide a first surface for attachment of a first structural member having a first CTE and a second surface of for attachment of a second structural member having a second CTE.3. The method of claim 2 , wherein the step of consolidating comprises hot isostatic pressing.4. A method for producing an integrated composite interface with a graded coefficient of thermal expansion (CTE) comprising the steps of:using powder metallurgy to produce a CTE graded preform ...

METHOD FOR MANUFACTURING THIN-WALLED STRUCTURES IN LAYERS

The invention concerns a method for manufacturing at least one thin-walled structure (), whereby this structure is built layer by layer by applying successive powder layers extending substantially horizontally and by moving an energy beam over each of these powder layers according to a predetermined pattern so as to make said powder melt and subsequently make it solidify or sinter, such that successive layers connected to each other of said thin-walled structure () are formed which extend according to a horizontal cross section of this thin-walled structure (). According to the method a support structure () is built in layers together with said thin-walled structures () and connected to it such that a rigid unit () is manufactured, whereby after building this unit () layer by layer, at least the thin-walled structures () are annealed in order to at least partly eliminate any stresses present, and whereby both structures are separated from each other. 11111317181111317181111317181111317181111317181414111131718111131718111131718111131718111131718. Method for manufacturing two or more thin-walled structures ( , , , ,) , whereby these thin-walled structures ( , , , ,) are built together and in layers by applying successive powder layers extending substantially horizontally and by moving an energy beam over each of these powder layers according to a predetermined pattern so as to make said powder melt entirely or partly and subsequently make it solidify or sinter , such that successive layers of said thin-walled structures ( , , , ,) are formed which extend according to a horizontal cross section of these structures , whereby said thin-walled structures ( , , , ,) are connected to each other over at least a part of their surface , such that these thin-walled structures ( , , , ,) form a rigid unit () , whereby after said unit () has been built in layers with said thin-walled structures ( , , , ,) , at least the thin-walled structures ( , , , ,) are annealed in order to ...

Process for local repair of a damaged thermomechanical part and part thus produced, in particular a turbine part

A process and device in production of precise three-dimensional sinters of a shape substantially close to that of an original part, using flash sintering produced by spark plasma sintering (SPS) technology. A mold is produced in a die of an enclosure for SPS flash sintering, the mold being shaped as an impression of the original part. The following are deposited in successive layers in the mold: a layer based on a superalloy powder, a metallic protection layer, and a thermal barrier layer. In a sintering, pressurization is initiated and a pulsed current passes through, producing a rapid rise in temperature in accordance with a flash sintering cycle whose temperature, pressure, and duration are regulated, with at least one temperature plateau and one pressure plateau. The layer of superalloy forms, by diffusion, during the sintering, a bonding continuum of material with the part to be repaired.

Radiopaque drug-filled prosthesis and method of making same

An implantable prosthesis can comprise a strut having a lumen, and radiopaque particles within the lumen. The radiopaque particles placed within the lumen can improve visualization of the prosthesis during an implantation procedure. The radiopaque particles can be bonded to each other to prevent the radiopaque particles from escaping out of the strut.

Spherical Copper/Molybdenum Disulfide Powders, Metal Articles, and Methods for Producing Same

A method of producing a compacted article according to one embodiment may involve the steps of: Providing a copper/molybdenum disulfide composite powder including a substantially homogeneous dispersion of copper and molybdenum disulfide sub-particles that are fused together to form individual particles of the copper/molybdenum disulfide composite powder; and compressing the copper/molybdenum disulfide composite powder under sufficient pressure to cause the copper/molybdenum disulfide composite powder to behave as a nearly solid mass. 1. A compacted article comprising a copper/molybdenum disulfide composite powder compressed under sufficient pressure to cause said copper/molybdenum disulfide composite powder to behave as a nearly solid mass , said copper/molybdenum disulfide composite powder comprising a substantially homogeneous dispersion of copper and molybdenum disulfide sub-particles that are fused together to form individual particles of said composite powder.2. The compacted article of claim 1 , having a green density in a range of about 4.3 g/cc to about 6.4 g/cc.3. The compacted article of claim 1 , having a green density of about 5 g/cc.4. The compacted article of claim 1 , having a friction coefficient in a range of about 0.2 to 0.7.5. The compacted article of claim 1 , having a copper content in a range of about 5% by weight to about 95% by weight.6. A compacted article consisting essentially of a copper/molybdenum disulfide composite powder comprising a substantially homogeneous dispersion of substantially spherical copper and molybdenum disulfide sub-particles that are fused together to form individual substantially spherical particles of said composite powder compressed under sufficient pressure to cause copper/molybdenum disulfide composite powder to behave as a nearly solid mass.7. A method of producing a compacted article claim 1 , comprising:providing a copper/molybdenum disulfide composite powder comprising a substantially homogeneous dispersion ...

METHOD FOR THE PRODUCTION OF A LATTICE PART MADE OF METAL

We describe a lattice part made of metal and a method for producing a lattice part made of metal or a metal alloy. The lattice has a thickness of less than 1 mm at a size of the gaps of less than 50 mm. The lattice () comprises a connection made of knots, and perpendicular to the lattice surface has lattice bars and lattice knots of the same thickness. A method for the production of a lattice part made of metal, particularly made of light alloy, is characterized by a primary shaping process according to DIN 8580, wherein a mold is formed in the first step, a primary material is introduced in the mold cavity in the second step, the part is removed from the mold in the third step, and the finishing of the metallic lattice part is carried out in the fourth step. 1. A method for producing a lattice part made of metal or of a metal alloy and forming a metallic node bond of lattice members , with the lattice having a thickness of less than 1 mm and openings with a surface area of less than 50 mm , the method which comprises:producing the lattice by casting according to DIN 8680 andin a first step, forming at least a part of the mold and jointing the mold;in a second step, introducing a starting material of metal or a metal alloy at least in part into a cavity of the mold or applying the starting material to a profiled mold part, and establishing a master pattern;subsequently, in a third step, at least partially removing the molded part from the mold; andsubsequently, in a fourth step, finishing of the molded part into a metallic lattice part.2. The method according to claim 1 , wherein the first step comprises forming at least part of the mold by powder injection molding (PIM).3. The method according to claim 1 , wherein in the first step claim 1 , that mold part claim 1 , which has been produced in the first step by powder injection molding (PIM) claim 1 , is produced making a mold material by mixing powder and a binder claim 1 , granulating the mold material and ...

MOLD FOR DOWNHOLE TOOL OR COMPONENT THEREOF

The disclosure provides a mold for a downhole tool or component thereof. The mold includes a grain material, a sodium silicate and carbon dioxide reaction product, and between 0.1% and 10% graphite by weight, inclusive, graphite. The disclosure further provides a method of forming a mold for a downhole tool or component thereof by filling a mold housing with graphite/sodium silicate/grain material mixture including between 0.1% and 10% graphite by weight, inclusive and shaping the mixture into a pre-mold having the same shape as the mold to be formed, and subjecting the pre-mold to an atmosphere having elevated amounts of carbon dioxide as compared to ambient air for a time sufficient to allow the sodium silicate to react with the carbon dioxide to form sufficient reaction products to bind the other pre-mold components and solidify a mold. 1. A mold for a downhole tool or component thereof , the mold comprising a grain material , a sodium silicate and carbon dioxide reaction product , and between 0.1% and 10% graphite by weight , inclusive.2. The mold of claim 1 , wherein the grain material comprises sand.3. The mold of claim 1 , wherein the mold has a resistivity of between 50 Ohms and 100 claim 1 ,000 Ohms claim 1 , inclusive.4. The mold of claim 1 , wherein the mold comprises between 1% and 10% sodium silicate and carbon dioxide reaction products by weight claim 1 , inclusive.5. The mold of claim 1 , wherein the mold comprises at least 75% grain material by weight.6. The mold of claim 1 , wherein the mold comprises at least one of Kaolin clay claim 1 , carbon fiber claim 1 , glass fiber claim 1 , and any combinations thereof each in an amount of between 0.1% to 5% by weight claim 1 , inclusive.7. The mold of claim 1 , wherein the mold comprises at least two regions having different amounts of graphite.8. A method of forming a mold for a downhole tool or component thereof claim 1 , the method comprising:filling a mold housing with graphite/sodium silicate/grain ...

Three-dimensional printing

In an example of a method for three-dimensional (3D) printing, build material layers are patterned to form an intermediate structure. During patterning, a binding agent is selectively applied to define a patterned intermediate part. Also during patterning, i) the binding agent and a separate agent including a gas precursor are, or ii) a combined agent including a binder and the gas precursor is, selectively applied to define a build material support structure adjacent to at least a portion of the patterned intermediate part. The intermediate structure is heated to a temperature that activates the gas precursor to create gas pockets in the build material support structure.

PART OBTAINED BY SELECTIVE MELTING OF A POWDER COMPRISING A MAIN ELEMENT AND RIGID SECONDARY ELEMENTS

The invention relates to A part obtained by selective melting of a powder on a support plate, this part comprising a main element and rigid secondary elements, these secondary elements supporting the main element between a lower surface of this main element and the support plate. The Secondary elements are intended to be detached from the main element. The lower surface of the main element thus comprises a first surface portion and at least one second surface portion, and the first surface portion makes, with the support plate, an angle α1 of less than a predetermined value, and the second surface portion makes, with this support plate, an angle α2 greater than or equal to this predetermined value. The first surface portion is therefore entirely supported by the secondary elements and the second surface portion is partially supported by the secondary elements. The predetermined value is between 20° and 30°. 1. A part obtained by selective melting of a powder on a support plate , this part comprising:a main element, andrigid secondary elements, these secondary elements supporting the main element between a lower surface of this main element and the support plate,wherein the secondary elements are adapted to be detached from the main element, a first surface portion, and', 'at least one second surface portion, 'wherein the lower surface of the main comprises{'b': 1', '2, 'wherein the first surface portion makes, with the support plate, an angle α of less than a predetermined value, and the second surface portion makes, with this support plate, an angle α greater than or equal to this predetermined value, wherein the predetermined value s between 20° and 30°, and'}wherein the first surface portion is entirely supported by the secondary elements and the second surface portion is partially supported by the secondary elements.2. The part according to claim 1 , wherein claim 1 , with the second surface portion having a surface area claim 1 , this second surface portion is ...

Squeegee apparatus and methods of use thereof

The present invention is directed to a squeegee apparatus which includes a main housing including an inlet end and an outlet end, the outlet end including an extrusion face and a protruding lip member, the inlet end including an inlet opening and the extrusion face including at least one outlet opening, wherein the inlet opening and the at least one outlet opening are in fluid communication with each other within the main housing. The present invention is also directed to a method for repairing a thermal barrier coating with a squeegee apparatus including supplying a repair composition into the inlet opening of the squeegee apparatus and depositing the repair composition from the at least one outlet opening onto the damaged region and concurrently traversing the squeegee apparatus over the damaged region while contacting a thermal barrier coating adjacent to the damaged region with the lip member.

METHOD FOR MANUFACTURING A CLADDED COMPONENT

A method for manufacturing a metallic component having a core and a metallic cladding by Hot Isostatic Pressing includes the steps of arranging a capsule and a core such that the capsule at least partially surrounds the core and a space is formed between at least a portion of the core and a portion of the capsule. The core, prior to the step of Hot Isostatic Pressing, is provided with at least one centering means for centering the solid body obtained in the step of Hot Isostatic Pressing in a metal machining apparatus. 1. A method for manufacturing a metallic component having a core and a metallic cladding , comprising the steps of:arranging a capsule and a core such that the capsule at least partially surrounds the core and such that a space is formed between at least a portion of the core and a portion of the capsule;filling the space with metallic cladding material such that the metallic cladding material covers at least a portion of the core;evacuating air from the capsule and sealing the capsule;subjecting the capsule to Hot Isostatic Pressing at a predetermined temperature, a predetermined pressure and for a predetermined time so that the metallic cladding material is bonded to the core forming a solid body; andsubjecting the solid body to a metal machining operation in which the metallic cladding material is machined in a metal machining apparatus into a metallic cladding of a predetermined thickness, wherein the core, prior to the step of Hot Isostatic Pressing, is provided with at least one centering means for centering the solid body obtained in the step of Hot Isostatic Pressing in the metal machining apparatus.2. The method according to claim 1 , wherein the centering means is a female centering means or a male centering means.3. The method according to claim 2 , wherein the male centering means is a truncated cone or a cone.4. The method according claim 2 , wherein the female centering means is a recess having the shape of a truncated cone or the shape ...

METHOD FOR PRODUCING A TURBOMACHINE PART BY MEANS OF A LASER PROCESS

The invention relates to a method for producing a part by means of a laser beam, with a nozzle () that sprays a metal powder towards a substrate (). Initially, the trajectory of the nozzle is defined in a pre-determined manner, and then, during the production of the part (): 1. A method for producing or repairing a turbomachine part by means of a laser beam , wherein a nozzle sprays a metal powder towards a substrate so as to produce the part by successive depositions of layers on top of each other , in one direction , therefore making the nozzle follow a trajectory , and wherein the trajectory of the nozzle is initially defined in a pre-determined manner , and then , during the production of the part:referring to an orientation parallel to the direction of deposition of the layers, a theoretical reference distance that has been previously recorded and a real distance which is then measured are compared; andthe trajectory of the nozzle is modified on the basis of a non null deviation threshold between the theoretical reference distance and the measured real distance.2. The method of claim 1 , wherein:defining the predetermined trajectory of the nozzle initially includes a definition of said trajectory along a Z axis corresponding to said direction of deposition of the layers and a height of the part,the real distance is measured along said Z axis,and the trajectory of the nozzle is modified along said Z axis.3. The method of claim 1 , wherein:the part is produced while stepwise moving the nozzle away from the substrate, in said direction of deposition of the layers,the predetermined trajectory of the nozzle includes a predetermined number of such steps,and the trajectory of the nozzle is modified by changing said predetermined number of steps.4. The method of claim 1 , wherein:a predetermined number of said layers to be deposited corresponds to the predetermined trajectory of the nozzle,a modified number of said layers still to be deposited corresponds to the ...

POWDERED METAL OPEN MOLDS

Manufacturing assemblies and molds are provided herein. The manufacturing assembly includes a tool base, a plurality of tool elements extending from the tool base, the plurality of tool elements defining a shape of a formed part, with a cell formed between adjacent tool elements, and a tapered tool extension extending between the tool base and at least one tool element. 1. A manufacturing assembly comprising:a tool base;a plurality of tool elements extending from the tool base, the plurality of tool elements defining a shape of a formed part, with a cell formed between adjacent tool elements; anda tapered tool extension extending between the tool base and at least one tool element.2. The manufacturing assembly of claim 1 , wherein each tool element extends from a tapered tool extension.3. The manufacturing assembly of claim 1 , wherein the tool element extending from the tapered tool extension has a first geometry and the tapered tool extension has a second geometry.4. The manufacturing assembly of claim 3 , wherein the first geometry and the second geometry are the same.5. The manufacturing assembly of claim 1 , further comprising a mold formed between the plurality of tool elements claim 1 , the mold comprising a plurality of layers of material.6. The manufacturing assembly of claim 5 , wherein the mold comprises a plurality of mold elements arranged with the cell of the plurality of tool elements.7. The manufacturing assembly of claim 6 , wherein at least one mold element comprises a tapered mold extension defined by the tapered tool extension.8. The manufacturing assembly of claim 6 , wherein each mold element comprises a tapered mold extension.9. The manufacturing assembly of claim 1 , wherein the formed part is an airfoil.10. The manufacturing assembly of claim 1 , wherein the formed part is a portion of a component of a gas turbine engine.11. The manufacturing assembly of claim 1 , wherein at least one tool element comprises a functional feature having at ...

METHODS OF ADDITIVELY MANUFACTURING INSERTS USED IN MOLDS TO FORM EARTH-BORING TOOLS

In some embodiments, the present disclosure includes a method of forming a body of an earth-boring downhole tool. A mold is formed that has at least one interior surface defining a mold cavity within the mold. The mold cavity has a shape corresponding to a shape of the body of the earth-boring downhole tool to be formed therein. At least one insert is formed that includes particles of hard-phase material and a binder material using an additive manufacturing process. The at least one insert is positioned within the mold cavity. Additional particles of hard-phase material are provided within the mold cavity, and the additional particles of hard-phase material are infiltrated with molten metal, thus sintering and/or infiltrating the at least one insert to form the body of the earth-boring downhole tool. The resulting body of the earth-boring downhole tool includes the sintered and/or infiltrated at least one insert. 1. A method of forming a body of an earth-boring downhole tool , comprising:forming a mold having at least one interior surface defining a mold cavity within the mold, the mold cavity having a shape corresponding to a shape of the body of the earth-boring downhole tool to be formed therein;forming at least one insert using an additive manufacturing process, the at least one insert comprising particles of hard-phase material and a binder material;positioning the at least one insert within the mold cavity;providing additional particles of hard-phase material within the mold cavity; andinfiltrating the additional particles of hard-phase material with molten metal, and sintering and/or infiltrating the at least one insert to form the body of the earth-boring downhole tool, the body of the earth-boring downhole tool including the sintered and/or infiltrated at least one insert.23. The method of claim 1 , wherein forming at least one insert using an additive manufacturing process comprises using a three-dimensional (D) printer to print the at least one insert.3. ...

JOINING METAL OR ALLOY COMPONENTS USING ELECTRIC CURRENT

A system may include a current source; a first metal or alloy component with a first major surface electrically coupled to the current source; a second metal or alloy component with a second major surface electrically coupled to the current source; a metal or alloy powder disposed in at least a portion of the joint region; and a controller. The first and second major surfaces may be positioned adjacent to each other to define a joint region. The controller may be configured to cause the current source to output an alternating current that passes from the first component, through at least a portion of the metal or alloy powder, into the second component. The frequency of the alternating current may be configured to cause standing electromagnetic waves within at least a portion of the particles of the metal or alloy powder. 1. A system comprising:a current source;a first component comprising a first metal or alloy and a first major surface, wherein the first component is electrically coupled to the current source;a second component comprising a second metal or alloy and a second major surface, wherein the second component is electrically coupled to the current source, wherein the first major surface of the first component and the second major surface of the second component are positioned adjacent to each other to define a joint region between adjacent portions of the first major surface of the first component and the second major surface of the second component;a metal or alloy powder disposed in at least a portion of the joint region; the electric current is an alternating current, and', 'the frequency of the alternating current is configured to cause standing electromagnetic waves within at least a portion of the particles of the metal or alloy powder., 'a controller configured to cause the current source to output an electric current that passes from the first component, through at least a portion of the metal or alloy powder, into the second component, wherein2. ...

PERMANENT MAGNET, AND MOTOR AND GENERATOR USING THE SAME

A permanent magnet of the embodiment includes: a composition represented by a composition formula: R(FeMCuCCo)(R is at least one element selected from rare-earth elements, M is at least one element selected from Ti, Zr and Hf, 0.27≦p≦0.45, 0.01≦q≦0.05, 0.01≦r≦0.1, 0.002≦t≦0.03, and 6≦z≦9); and a metallic structure including a main phase containing a ThZncrystal phase, and a sub phase of the element M having an element M concentration of 30 atomic % or more. The sub phase of the element M precipitates in the metallic structure. A ratio of a circumferential length to a precipitated area of the sub phase of the element M is 1 or more and 10 or less. 1. A permanent magnet comprising: {'br': None, 'sub': p', 'q', 'r', 't', '1-p-q-r-t', 'z, 'R(FeMCuCCo)'}, 'a composition represented by a composition formulawherein R is at least one element selected from the group consisting of rare-earth elements, M is at least one element selected from the group consisting of Ti, Zr and Hf, p is a number, which is an atomic ratio, satisfying 0.27≦p≦0.45, q is a number, which is an atomic ratio, satisfying 0.01≦q≦0.05, r is a number, which is an atomic ratio, satisfying 0.01≦r≦0.1, t is a number, which is an atomic ratio, satisfying 0.002≦t≦0.03, and z is a number, which is an atomic ratio, satisfying 6≦r≦9; and{'sub': 2', '17, 'a metallic structure including a main phase containing a ThZncrystal phase, and a sub phase of the element M having an element M concentration of 30 atomic % or more,'}wherein the sub phase precipitates in the metallic structure, and a ratio of a circumferential length to a precipitated area of the sub phase is 1 or more and 10 or less.2. The permanent magnet according to claim 1 ,wherein the sub phase contains carbide of element M.3. The permanent magnet according to claim 1 ,wherein a number of precipitates per a unit area, which is 50 μm×50 μm, of the sub phase is two or more.4. The permanent magnet according to claim 1 , comprising a sintered compact including ...

LIGHTWEIGHT POLYMER AMMUNITION CARTRIDGE CASINGS

One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash hole positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole. 1. A method of making a substantially cylindrical insert by metal injection molding comprising the steps of:providing a mold of the substantially cylindrical insert to form a substantially cylindrical insert mold;providing a feedstock comprising a powdered metal and a first binding agent and a second binding agent;injection molding the feedstock into the substantially cylindrical insert mold to form an substantially cylindrical insert having a first size;debinding the substantially cylindrical insert to remove the first binding agent; andsintering the substantially cylindrical insert to remove the second binding agent and form a finished substantially cylindrical insert having a second size.2. The substantially cylindrical insert of claim 1 , wherein the substantially cylindrical insert comprising a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface claim 1 , a ...

METHOD OF MAKING A METAL PRIMER INSERT BY INJECTION MOLDING

The present invention provides a method of making a substantially cylindrical insert by metal injection molding by providing a primer insert injection mold to form a substantially cylindrical metal primer insert, injection molding the metal injection molding feedstock into the primer insert injection mold to form a first substantially cylindrical metal primer insert having a first size; debinding the first substantially cylindrical metal primer insert to remove the first binding agent; and sintering the first substantially cylindrical metal primer insert to remove the second binding agent and form the substantially cylindrical metal primer insert having a second size. 1. A method of making a substantially cylindrical insert by metal injection molding comprising the steps of:providing a primer insert injection mold to form a substantially cylindrical metal primer insert, wherein the primer insert mold comprises a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash aperture positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface, wherein the flange is adapted to receive a polymer overmolding that covers an circumferential surface and the primer flash hole aperture to form a primer flash hole;providing a metal injection molding feedstock comprising a powdered metal and a first binding agent and a second binding agent;injection molding the metal injection molding feedstock into the primer insert injection mold to form a first substantially cylindrical metal primer insert having a first size;debinding the first substantially cylindrical metal primer insert to remove the first binding agent; andsintering the first substantially cylindrical metal primer insert to remove the second binding agent and form the ...

METHOD FOR THE HEAT TREATMENT OF A PART MADE FROM MARAGING STEEL

A method for the heat treatment of a part made of maraging steel, which part is obtained by selective laser melting, it comprises the steps of: heating the said part made of maraging steel from ambient temperature T0 to a maximum temperature Tmax of between 600° C. and 640° C., maintaining the said maximum temperature Tmax for a duration of between 5 hours and 7 hours, and rapidly cooling the said part. 111.-. (canceled)12. A method for the heat treatment of a part made of maraging steel , which part is obtained by selective laser melting , and which maraging steel comprises a carbon content of less than or equal to 0.03% , a nickel content of between 17% and 19% , a cobalt content of between 8.5% and 9.5% , a molybdenum content of between 4.5% and 5.2% , a titanium content of between 0% and 0.8% , an aluminium content of between 0% and 0.15% , a chromium content of between 0% and 0.5% , a copper content of between 0% and 0.5% , a silicon content of between 0% and 0.1% , a manganese content of between 0% and 0.1% , a sulfur content of between 0% and 0.01% , a phosphorus content of between 0% and 0.01% , the remainder being iron and all percentages being expressed by weight with respect to the total weight of the part , the method comprising the steps of:{'sub': 0', 'max, 'heating the part made of maraging steel from ambient temperature Tto a maximum temperature Tof between 600° C. and 640° C.;'}{'sub': 'max', 'maintaining the maximum temperature Tfor a duration of between 5 hours and 7 hours; and'}cooling the part.13. The method according to claim 12 , wherein the maximum temperature Tis between 610° C. and 630° C.14. The method according to claim 12 , wherein the maximum temperature Tis maintained for a duration of 6 hours or of around 6 hours.15. The method according to claim 12 , wherein a rate of cooling Vis between 420° C./min and 480° C./min.16. The method according to claim 15 , wherein the rate of cooling Vis between 440° C./min and 460° C./min.17. The ...

JET TUBE FOR A TURBOMACHINE

A jet tube for a turbomachine having a tubular main part with an axis and delimiting an internal volume opening out at a first end forming an inlet and at a second end forming an outlet. The jet tube also having a nozzle with a first part radially passing through a wall of the main part. The first part has a first area located radially outside the wall and the internal volume, and a second area located radially inside the wall and the internal volume. The nozzle has a second portion extending axially from the second area of the first portion of the nozzle and towards the outlet. The nozzle has a channel passing through the first and second portions of the nozzle and opening into the internal volume at the free end of the second portion of the nozzle. 1. A jet tube for a turbomachine , the jet tube comprising a tubular main part having an axis and delimiting an internal volume opening out at a first end forming an inlet and at a second end forming an outlet , a nozzle comprising a first part radially passing through a wall of the main part , said first part comprising a first area located radially outside said wall and said internal volume , and a second area located radially inside said wall and said internal volume , the nozzle having a second portion extending axially from the second area of the first portion of the nozzle and towards said outlet , said nozzle having a channel passing through said first and second portions of the nozzle and opening into said internal volume at the free end of the second portion of the nozzle , wherein the main part and the nozzle are made in one piece , the second area has a surface facing said inlet and whose line of intersection with the radial median plane of the second area forms an angle α between 44° and 45° with the axis , the second area comprising a protrusion located between the channel and the inlet and attached to the wall of the main part , said protrusion defining , at least in part , said surface facing the inlet.2. ...

Polymer Ammunition and Cartridge Primer Insert

The present invention provides polymer ammunition having a primer insert having: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.02 to 0.2; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.02 to 0.18 inches and the second segment has a second segment distance from 0.02 to 0.18 inches, wherein the second segment has a second segment angle from +3 to −3 degrees relative to the first segment angle and the first segment has a first segment angle from +6 to −6 degrees from perpendicular to the top surface; a primer recess in the top surface that extends toward the bottom surface; a primer flash aperture positioned in the primer recess through the bottom surface; and a flash aperture groove in the primer recess and positioned around the primer flash aperture and adapted to receive a polymer overmolding through the primer flash aperture.

ULTRASONIC STEEL HORN FOR TIRE CUTTING AND METHOD OF MANUFACTURING

An ultrasonic tuned blade includes a base and a tire cutting edge made of a tool steel having a vanadium content which is at least about 8 percent. For example, the tool steel can have a combined vanadium, cobalt, and tungsten content that is at least about 15 percent. The tool steel can be formed into a simple block via a powder metallurgy process. The simple block can be milled into an ultrasonic tire cutting horn shape comprising a tuned blade including a base and a tire cutting edge. The ultrasonic steel tire cutting horn can be heat treated to provide the tool steel with a Rockwell hardness, for example, of at least about 50 HRC and less than about 64 HRC. The ultrasonic steel tire cutting horn can include a low friction or wear resistant coating. 1. A tire cutting ultrasonic horn comprising:a tuned blade including a base and a tire cutting edge, wherein the tuned blade comprises a tool steel having a vanadium content which is at least about 8 percent.2. The tire cutting ultrasonic horn according to claim 1 , wherein the tool steel has a vanadium content which is at least about 9 percent and less than about 15 percent.3. The tire cutting ultrasonic horn according to claim 1 , wherein the tool steel has a combined vanadium claim 1 , cobalt claim 1 , and tungsten content that is at least about 15 percent.4. The tire cutting ultrasonic horn according to claim 1 , wherein the tool steel has a combined vanadium claim 1 , cobalt claim 1 , and tungsten content that is at least about 17 percent and less than about 22 percent.5. The tire cutting ultrasonic horn according to claim 1 , wherein the tool steel is formed by a powder metallurgy process to have a finer grained microstructure than that of traditional steel casting processes.6. The tire cutting ultrasonic horn according to claim 1 , wherein the tool steel has a Rockwell hardness of at least about 50 HRC and less than about 64 HRC.7. The tire cutting ultrasonic horn according to claim 1 , wherein the tool steel ...

WORKING ADDITIVELY MANUFACTURED PARTS

A method of working an additively manufactured part includes applying a layer of wax to a part manufactured with an additive manufacturing process. Then a mold is formed over the layer of wax on the part. The wax is then removed from between the mold and the part. The part is then melted in the mold, and then the part is re-solidified in the mold. Finally, the mold is removed. 1. A method of working an additively manufactured part , the method comprising:applying a coating to a part manufactured with an additive manufacturing process;forming a mold over the coating on the part;removing the coating between the mold and the part;melting the part in the mold;re-solidifying the part in the mold; andremoving the mold.2. The method of claim 1 , wherein the part is manufactured with an additive manufacturing process selected from the group consisting of direct metal laser sintering claim 1 , electron beam freeform fabrication claim 1 , electron-beam melting claim 1 , selective laser melting claim 1 , selective laser sintering claim 1 , and combinations thereof.3. The method of claim 1 , wherein interior surfaces of the mold have an average surface roughness Requal to or less than 125 microinches (3.2 micrometers).4. The method of claim 3 , wherein interior surfaces of the mold have an average surface roughness Rbetween 60 microinches (1.5 micrometers) and 125 microinches (3.2 micrometers).5. The method of claim 1 , wherein the mold that is formed over the part is a ceramic mold.6. The method of claim 5 , wherein the ceramic mold and the part are placed in a furnace and heated to a temperature that is lower than the melting temperature of the part to sinter the mold.7. The method of claim 6 , wherein the ceramic mold and the part are heated in the furnace to a temperature that is greater than the melting temperature of the part to melt the part in the ceramic mold.8. The method of claim 1 , wherein the part is re-solidified on a chill block to control the crystallization of ...

Forming Facsimile Formation Core Samples Using Three-Dimensional Printing

Methods including providing an actual formation core sample; determining an internal anatomy of at least a portion of the actual formation core sample; determining a virtual 3D model of the external anatomy of the actual formation core sample in a computer readable format, wherein the virtual 3D model of the external anatomy of the actual formation core sample is represented by successive 2D cross-sectional layers; providing a 3D printer; transmitting the virtual 3D model of the external anatomy of the actual formation core sample to the 3D printer; and printing a facsimile core sample using the 3D printer, thereby replicating at least a portion of the external anatomy of the actual formation core sample.

MANUFACTURE OF COMPONENT WITH COOLING CHANNELS

A method for the manufacture of a component having an internal cavity is described. The method includes; defining an external geometry of the component, defining a core geometry of the component; using an additive layer manufacturing method, building the component from a plurality of layers laid on a first plane; wherein the core geometry includes a main core passage having a first end wall and a second end wall and is divided by one or more dividing walls, the dividing walls and end walls each having a common profile and wherein the profile includes an incline to the first plane. 1. A method for the manufacture of a component having an internal cavity , the method comprising;defining an external geometry of the component,defining a core geometry of the component;using an additive layer manufacturing method, building the component from a plurality of layers laid on a first plane;wherein the core geometry includes a main core passage having a first end wall and a second end wall and divided by one or more dividing walls, the dividing walls and end walls each having a common profile and wherein the profile includes an incline to the first plane.2. A method as claimed in wherein the incline to the first plane is at least 30 degrees.3. A method as claimed in wherein the incline is greater than 45 degrees.4. A method as claimed in wherein the incline is in the range 45 to 60 degrees.5. A method as claimed in wherein the walls are planar and extend at a consistent incline to the first plane.6. A method as claimed in wherein the walls are non-planar claim 1 , opposite ends of the walls inclining to the first plane in a different direction.7. A method as claimed in wherein the walls converge to a vertex at a centre line of the core passage to form a chevron shape.8. A method as claimed in wherein opposite ends of the wall incline to the first plane by a different angle and converge to a vertex which is off a centreline of the core passage.9. A method as claimed in wherein ...

POROUS ELECTROLYZER GAS DIFFUSION LAYER AND METHOD OF MAKING THEREOF

A porous titanium sheet configured to function as an anode side gas diffusion layer of a proton exchange membrane (PEM) electrolyzer is formed by a powder technique, such as tape casting or powder metallurgy. 1. A porous titanium sheet configured to function as an anode side gas diffusion layer of a proton exchange membrane (PEM) electrolyzer , wherein the porous titanium sheet is formed by a powder technique.2. The porous titanium sheet of claim 1 , wherein a first major side of the porous titanium sheet has a higher porosity than an opposite second major side of the porous titanium sheet.3. The porous titanium sheet of claim 2 , wherein the first major side of the porous titanium sheet is configured to face an anode side flow plate claim 2 , and the second major side of the porous titanium sheet is configured to face an anode electrode.4. The porous titanium sheet of claim 2 , wherein the first major side of the porous titanium sheet has the porosity which is at least 10 percent higher than the opposite second major side of the porous titanium sheet.5. The porous titanium sheet of claim 1 , wherein a first major side of the porous titanium sheet includes a groove and an opposite second major side of the porous titanium sheet has a substantially planar surface which lacks a groove.6. The porous titanium sheet of claim 1 , wherein:the porous titanium sheet contains a titanium nitride coating on at least one surface thereof; andthe porous titanium sheet comprises pure titanium or an alloy of titanium containing more than 50 atomic percent titanium and less than 50 atomic percent of at least one of molybdenum, vanadium, niobium, tantalum, or zirconium.7. The porous titanium sheet of claim 1 , wherein the porous titanium sheet includes a bimodal pore size distribution comprising micropores having an average pore size in a range of 1 to 5 microns claim 1 , and macropores having an average pore size in a range of 30 to 40 microns.8. The porous titanium sheet of claim 1 , ...

Method And System For Manufacturing Small Adaptive Engines

A method for manufacturing small adaptive engines uses a battlefield repository having cloud services that is configured to enable additive manufacturing (AM) of engine parts and assemblies. The method also uses a compilation of recipes/signatures for building the engine parts and the assemblies using additive manufacturing (AM) processes and machine learning programs. An additive manufacturing system and an alloy powder suitable for performing the additive manufacturing (AM) processes can be provided. In addition, the engine parts can be built using the additive manufacturing (AM) system, the alloy powder, the battlefield repository and the compilation of recipes/signatures. A system for manufacturing small adaptive engines includes the battlefield repository, the compilation of recipes/signatures, a foundry system for providing the alloy powder and an additive manufacturing (AM) system configured to perform the additive manufacturing (AM) processes.

OPTIMISATION OF SUPPORTS FOR THE ADDITIVE MANUFACTURING OF A COMPONENT

A method for producing, by additive manufacturing, a part including at least one surface that must be held during the manufacturing, the method including: a step of forming a raw part by additive manufacturing, the raw part including a support including a pillar and a head which is an alveolar element connecting the pillar to the surface to be held; and a step of detaching the support from the rest of the raw part. 16163. A method for obtaining , by additive manufacturing , a component including at least one surface (; ) that has to be supported during manufacture , including:{'b': '64', 'claim-text': [{'b': '66', 'a pillar () comprising a foot from which the manufacture of this pillar starts, this pillar being a block of material, and'}, {'b': 67', '66', '61', '63, 'a cap () which is a cellular element connecting the pillar () to the surface to be supported (; );'}], 'a step of forming by additive manufacturing a one-piece blank component on a build plate (T) comprising a support () including{'b': 64', '68, 'a step of detaching the support () from the rest of the blank component consisting in pulling on the foot () in the manner of a lever by following an arc path (C).'}264. The method according to claim 1 , wherein the step of detaching the support () includes:{'b': '66', 'the removal of the pillar () inducing a rupture at the cap, and'}{'b': 61', '63, 'a finishing step to suppress residues from the cap remained attached to the surface to be supported (; ).'}3666968716967. The method according to claim 1 , wherein the pillar () includes an inclined segment () that extends the foot () claim 1 , and a head () that terminates the inclined segment () and whereon the cap () is manufactured.468. The method according to claim 3 , wherein the foot () is directly erected from the build plate (T) from which the component starts the manufacture thereof.5216163. The method according to claim 1 , wherein the component is a bearing support () comprising at least one surface (; ...

Al-RICH HIGH-TEMPERATURE TiAl ALLOY

The present invention relates to a TiAl alloy for use at high temperatures which has aluminum and titanium as main constituents. The TiAl alloy has an aluminum content of greater than or equal to 50 at. % and a matrix of γ-TiAl and at least one phase of Al and Ti incorporated in the γ-TiAl matrix which is different from γ-TiAl, as well as depositions of oxides and/or carbides and/or silicides. In addition, the invention relates to a method for producing the alloy and to the use of the alloy for components of turbo-machines, in particular aircraft engines. 1. A TiAl alloy for use at high temperatures , wherein the alloy comprises aluminum and titanium as main constituents , has an aluminum content of greater than or equal to 50 at. % , and comprises a matrix of γ-TiAl and at least one phase of Al and Ti incorporated in the γ-TiAl matrix which is different from γ-TiAl and comprises Al and Ti , as well as depositions of oxides and/or carbides and/or silicides.2. The TiAl alloy of claim 1 , wherein the alloy comprises up to 75 at. % of aluminum.3. The TiAl alloy of claim 1 , wherein the alloy comprises up to 65 at. % of aluminum.4. The TiAl alloy of claim 1 , wherein the alloy comprises up to 60 at. % of aluminum.5. The TiAl alloy of claim 1 , wherein the γ-TiAl matrix occupies at least 50 vol. % of a microstructure of the alloy.6. The TiAl alloy of claim 1 , wherein the γ-TiAl matrix has a closed or net-like or globular structure.7. The TiAl alloy of claim 1 , wherein the phases of Al and Ti which are different from γ-TiAl comprise β-phase and/or one or more Al-rich intermetallic phases.8. The TiAl alloy of claim 7 , wherein the Al-rich intermetallic phases comprise at least one of AlTi and AlTi.9. The TiAl alloy of claim 1 , wherein the depositions comprise at least ZrOand/or YO.10. The TiAl alloy of claim 1 , wherein the alloy comprises one or more of Nb claim 1 , Mo claim 1 , W claim 1 , Co claim 1 , Cr claim 1 , V claim 1 , Zr claim 1 , Si claim 1 , C claim 1 , Er ...

TURBINE WHEEL OF AN EXHAUST GAS TURBOCHARGER AND ASSOCIATED PRODUCTION METHOD

A turbine wheel for an exhaust gas turbocharger may include a body composed of a TiAl alloy via at least one of metal injection moulding, selective laser melting and electron beam melting. The body may include a plurality of blades each having an outlet blade root and an outlet blade tip disposed radially away from a rotation axis with respect to the outlet blade root. The body may have a quotient Q of a diameter ddefined by each of the outlet blade tips to a diameter ddefined by each of the oulet blade roots corresponding to the following relationship: Q=d/d 1. A turbine wheel for an exhaust gas turbocharger , comprising: a body composed of a TiAl alloy via at least one of metal injection moulding , selective laser melting and electron beam melting , the body including a plurality of blades each having an outlet blade root and an outlet blade tip disposed radially away from a rotation axis with respect to the outlet blade root , wherein the body has a quotient Q of a diameter ddefined by each of the outlet blade tips to a diameter ddefined by each of the outlet blade roots corresponding to the following relationship:{'br': None, 'i': Q=d', '/d, 'sub': S', 'N, '>3.85.'}2. An exhaust gas turbocharger , comprising: a turbine wheel composed of a TiAl alloy , the turbine wheel including a plurality of blades each having an outlet blade root and an outlet blade tip disposed radially away from a rotation axis with respect to the outlet blade root;{'sub': S', 'N, 'claim-text': {'br': None, 'i': Q=d', '/d, 'sub': S', 'N, '>3.85.'}, 'wherein the turbine wheel has a quotient Q of a diameter ddefined by each of the blade tips to a diameter ddefined by each of the outlet blade roots corresponding to the following relationship4. The method according to claim 3 , wherein the powdered metallurgy process is metal injection moulding claim 3 , and further comprising the steps of debinding and sintering the component.5. The method according to claim 3 , wherein the component is a ...

CUTTING ELEMENTS COMPRISING A LOW-CARBON STEEL MATERIAL, RELATED EARTH-BORING TOOLS, AND RELATED METHODS

A method of forming a cutting element comprises disposing diamond particles in a container and disposing a metal powder on a side of the diamond particles. The diamond particles and the metal powder are sintered so as to form a polycrystalline diamond material and a low-carbon steel material comprising less than 0.02 weight percent carbon and comprising an intermetallic precipitate on a side of the polycrystalline diamond material. Related cutting elements and earth-boring tools are also disclosed. 1. A method of forming a cutting element , the method comprising:disposing diamond particles in a container;disposing a metal powder on a side of the diamond particles; andsintering the diamond particles and the metal powder so as to form a polycrystalline diamond material and a low-carbon steel material, the low-carbon steel material comprising less than 0.02 weight percent carbon and an intermetallic precipitate on a side of the polycrystalline diamond material.2. The method of claim 1 , wherein:disposing diamond particles in a container comprises disposing the diamond particles on a first side of a substrate in the container;disposing a metal powder on a side of the diamond particles comprises disposing the metal power on a second, opposite side of the substrate; andsintering the diamond particles comprises sintering the diamond particles to the first side of the substrate so as to form the polycrystalline diamond material on the first side of the substrate and sintering the metal powder to the second side of the substrate so as to form the low-carbon steel material on the second side of the substrate.3. The method of claim 1 , further comprising machining at least a portion of the low-carbon steel material and forming at least one of threads claim 1 , at least one flat claim 1 , or at least one slot in the low-carbon steel material.4. The method of claim 1 , further comprising hardening the low-carbon steel material after machining at least a portion thereof.5. The ...

HARD PARTICLES AND SINTERED SLIDING MEMBER USING THE SAME

The present disclosure provides hard particles having improved wear resistance and a sintered sliding member using the hard particles. The present disclosure relates to a hard particle consisting of: 1% to 7% by mass of La, 30% to 50% by mass of Mo, 10% to 30% by mass of Ni, 10% by mass or less of Mn, 1.0% by mass or less of C, with the balance being unavoidable impurities and Co, and to a sintered sliding member using the hard particles. 1. A hard particle consisting of: 1% to 7% by mass of La , 30% to 50% by mass of Mo , 10% to 30% by mass of Ni , 10% by mass or less of Mn , 1.0% by mass or less of C , with the balance being unavoidable impurities and Co.2. A sintered sliding member comprising:an iron-based base material; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hard particles according to dispersed in the iron-based base material.'}3. The sintered sliding member according to claim 2 , wherein the sintered sliding member is a valve seat or a valve guide. The present application claims priority from Japanese patent application JP 2019-130219 filed on Jul. 12, 2019, the entire content of which is hereby incorporated by reference into this application.The present disclosure relates to hard particles, in particular, hard particles appropriate for improving wear resistance of a sintered sliding member, and to a sintered sliding member using the hard particles.In an automobile, sliding members are used for various equipment, such as an engine and a transmission. In such sliding members, a valve seat and a valve guide for an engine are exposed to a severely sliding environment, such as a high temperature and low oxidation environment caused in association with a recent improvement of engine performance, thereby being required to have high wear resistance.As the sintered sliding members, such as the valve seat and the valve guide, a sintered sliding member in which hard particles excellent in wear resistance are dispersed in an iron-based base material ...

CUTTING TOOL

The present disclosure relates to a cutting tool of a cemented carbide substrate including WC and a binder phase having one or more of Co, Fe and Ni, wherein the cemented carbide also includes a finely dispersed eta phase of Me12C and/or Me6C carbides, where Me is one or more metals selected from W, Mo and the binder phase metals, wherein the substoichiometric carbon content in the cemented carbide is between −0.30 to −0.16 wt %. The disclosed cutting tool will achieve an improved resistance against comb cracks. 1. A cutting tool comprising a cemented carbide substrate comprising WC and a binder phase including one or more of Co , Fe and Ni , wherein the cemented carbide also includes an eta phase comprising Me12C and/or Me6C carbides where Me is one or more metals selected from W , Mo and the binder phase metals and wherein a substoichiometric carbon content in the cemented carbide is between −0.30 to −0.16 wt %.2. The cutting tool according to claim 1 , wherein the substoichiometric carbon content in the cemented carbide is between −0.28 to −0.17 wt %.3. The cutting tool according to claim 1 , wherein the amount of eta phase in the cemented carbide is between 2 to 10 vol %.4. The cutting tool according to claim 1 , wherein the eta phase has a grain size of 0.1 to 10 μm.5. The cutting tool according to claim 1 , wherein the binder phase content is 2 to 20 wt %.6. The cutting tool according to claim 1 , wherein the binder phase is cobalt.7. The cutting tool according to claim 1 , wherein the eta phase distribution is the same throughout the whole cemented carbide substrate.8. The cutting tool according to claim 1 , wherein the cemented carbide substrate is provided with a wear resistant CVD coating.9. The cutting tool according to claim 1 , wherein the cemented carbide substrate is provided with a CVD coating comprising at least a Ti(C claim 1 ,N) layer and a Al2O3 layer.10. A method of making a cutting tool comprising cemented carbide substrate claim 1 , the method ...

ADDITIVE MANUFACTURED GEAR FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE

A gear includes a multiple of gear teeth that extend from an outer portion of a rim about an axis and an inner portion of the rim about the axis, the inner portion of the rim additive manufactured. 1. A gear , comprising:a multiple of gear teeth that extend from an outer portion of a rim about an axis; andan inner portion of said rim about said axis, said inner portion of said rim additive manufactured to the outer portion at a mechanical interface.2. The gear as recited in claim 1 , wherein said inner portion of said rim forms a journal bearing surface.35-. (canceled)6. The gear as recited in claim 1 , wherein said inner portion of said rim includes a matrix.7. The gear as recited in claim 6 , wherein said matrix forms a lattice structure.8. The gear as recited in claim 1 , wherein said gear is an intermediate gear of a geared architecture for a gas turbine engine claim 1 , said intermediate gear is a double helical gear.9. The gear as recited in claim 1 , wherein said inner portion provides different characteristics along an axial length.10. A geared architecture for a gas turbine engine claim 1 , said geared architecture claim 1 , comprising:a sun gear;a ring gear that surrounds said sun gear; anda multiple of intermediate gears in meshing engagement with said sun gear and said ring gear, each of said multiple of intermediate gears including an inner portion of a rim, said inner portion of said rim being additive manufactured, and a multiple of gear teeth that extend from an outer portion of said rim of each of said multiple of intermediate gears about an axis, said inner portion of said rim additive manufactured to the outer portion at a mechanical interface, said gear teeth manufactured via subtractive manufacturing.11. (canceled)12. The geared architecture as recited in claim 10 , wherein said inner portion of said rim forms an inner periphery.13. (canceled)14. The geared architecture as recited in claim 10 , wherein said mechanical interface comprises a ...

METHOD FOR PRODUCING A PISTON

The present invention relates to a method for producing a piston () for an internal combustion engine from a piston upper part () and a piston lower part (). 1. A method for producing a piston for an internal combustion engine , the method comprising:producing a piston upper part including a piston top, at least part of a ring section, and at least part of a cooling channel;producing a piston lower part and closing the part of the cooling channel arranged in the piston upper part via an additive method; 'wherein finish-machining the piston includes producing at least one annular groove in a ring support for receiving a piston ring.', 'finish-machining the piston; and'}2. The method according to claim 1 , wherein producing the upper piston part includes at least one of forging and casting the ring support into the piston upper part claim 1 , and wherein the ring support forms the annular groove.3. The method according to claim 1 , further comprising claim 1 , prior to producing the piston lower part via the additive method claim 1 , facing the piston upper part at least on a side facing the piston lower part.4. The method according to claim 1 , wherein producing the piston lower part via the additive method includes forming a second part of the cooling channel in a region of the piston lower part claim 1 , the second part of the cooling channel having a rougher surface than the part of the cooling channel arranged in the piston upper part claim 1 , wherein the rougher surface of the second part of the cooling channel is produced via the additive method.5. The method according to claim 1 , wherein the cooling channel has a non-rotationally symmetrical shape with respect to at least one of a piston vertical axis and a piston transverse axis.6. The method according to claim 1 , wherein producing the piston lower part via the additive method includes producing claim 1 , via the additive method claim 1 , a second part of the cooling channel in a region of the piston lower ...

BREAKABLE THREE DIMENSIONAL (3D) PRINTED MOLDS

Breakable three dimensional (3D) printed molds are disclosed. An example method for forming a mold having a cavity by creating a plurality of layers using an additive manufacturing process includes providing a build material; and controlling a fusion level of the build material separately for different layers of the plurality of layers to separately form the layers with a porosity corresponding to a target porosity. 1. A method for forming a mold having a cavity by creating a plurality of layers using an additive manufacturing process , the method comprising:providing a build material; andcontrolling a fusion level of the build material separately for different layers of the plurality of layers to separately form the layers with a porosity corresponding to a target porosity.2. The method of claim 1 , wherein the controlling of the fusion level includes controlling a contone level of at least one of a fusing agent or a detailing agent.3. The method of claim 1 , wherein the controlling of the fusion level includes controlling a heat transfer.4. The method of claim 1 , wherein the controlling of the fusion level includes varying at least one of a binder agent or an energy level provided to the build material.5. The method of claim 1 , wherein the controlling of the fusion level includes controlling an energy level provided to the build material.6. The method of claim 1 , wherein the controlling of the fusion level includes providing a detailing agent to the build material.7. The method of claim 1 , wherein controlling the fusion level enables a porosity of the layer to between approximately 2 percent and 45 percent.8. The method of claim 1 , wherein after formation of the mold claim 1 , further including:providing a moldable material in the cavity of the mold to form a molded part; andremoving the mold from the mold part by breaking the mold from the molded part via a breakaway feature defined by the porosity of the mold.9. The method of claim 1 , wherein the ...

METHOD OF SHAPING GREEN PART AND MANUFACTURING METHOD USING SAME

A method of shaping a part in a green state obtained through powder injection molding, including placing a surface of the part in contact with a shaping surface of a setter with at least one section of the surface of the part not conforming to the shaping surface, and locally heating at least one area of each of the at least one section to deform the part until the at least one section conforms to the shaping surface. The part remains in the green state during the local heating. The part may be a heat shield panel for a gas turbine engine.

SURGICAL IMPLANT DEVICES INCORPORATING POROUS SURFACES

A surgical implant device, comprising: a body portion; and one or more surfaces comprising a plurality of protruding structures; wherein the body portion and the one or more surfaces comprising the plurality of protruding structures are integrally formed. The one or more surfaces comprising the plurality of protruding structures are formed by an additive manufacturing process. The plurality of protruding structures comprise a plurality of needles. Optionally, the surgical implant device comprises one of an anterior lumbar interbody fusion cage, a posterior lumbar interbody fusion cage, a transforaminal lumbar interbody fusion cage, an oblique lumbar interbody fusion cage, a cervical cage, and a bone screw. 1. A surgical implant device , comprising:a body portion; andone or more surfaces comprising a plurality of protruding structures;wherein the body portion and the one or more surfaces comprising the plurality of protruding structures are integrally formed.2. The surgical implant device of claim 1 , wherein the one or more surfaces comprising the plurality of protruding structures are formed by an additive manufacturing process.3. The surgical implant device of claim 1 , wherein the plurality of protruding structures comprise a plurality of needles.4. The surgical implant device of claim 1 , wherein the plurality of protruding structures comprise a plurality of needles that are disposed substantially perpendicular to the body portion.5. The surgical implant device of claim 1 , wherein the plurality of protruding structures comprise a plurality of needles that are disposed at an angle to the body portion.6. The surgical implant device of claim 1 , wherein the plurality of protruding structures comprise a plurality of needles that comprise titanium.7. The surgical implant device of claim 1 , wherein the body portion defines a hollow interior cavity.8. The surgical implant device of claim 1 , wherein the body portion defines one or more ports that are configured to ...

Additive Metal Manufacturing Process

Three dimensional “green” parts are formed by combining sheet layers comprising metal powder bound together by a polymer. The “green” parts are then sintered to drive off the polymer and consolidate the metal powder to produce a monolithic metal part. Particularly, the invention is directed to processes for forming and stacking the shaped sheet layers that are readily automated and preserve the high value powder metal and polymer sheet trim scrap for reuse resulting in an additive overall process with little material waste. The invention includes processes in which “green” elements formed by methods such as three dimensional printing are incorporated into the “green” stack and become an integral part of the final sintered part. It further includes processes in which “green” sheet layers are shaped by means such as hot bending or vacuum forming to provide three dimensional part features.

Spherical Tantalum-Titanium Alloy Powder, Products Containing The Same, And Methods Of Making The Same

A tantalum-titanium alloy powder that is highly spherical is described. The alloy powder can be useful in additive manufacturing and other uses. Methods to make the alloy powder are further described as well as methods to utilize the alloy powder in additive manufacturing processes. Resulting products and articles using the alloy powder are further described.

SCALABLE ELECTRICALLY CONDUCTIVE NANOWIRES BUNDLE-RING-NETWORK FOR DEFORMABLE TRANSPARENT CONDUCTOR

A method of producing a transparent conductive electrode is provided. The method comprises spraying a suspension of electrically conductive nanowires on a polymer substrate to form droplets thereon, wherein each of the droplets has a periphery which is in contact with one or more peripheries of another droplet, wherein the suspension comprises a polar solvent, wherein the polymer substrate and the polar solvent produce a surface tension which directs the electrically conductive nanowires to accumulate at the periphery of each of the droplets to form a network of connected ring structures, and removing the polar solvent from the polymer substrate to form a micromesh comprising the electrically conductive nanowires which are retained in the form of the network of connected ring structures. The transparent conductive electrode and its uses are also provided. 1. A method of producing a transparent conductive electrode , the method comprising:spraying a suspension of electrically conductive nanowires on a polymer substrate to form droplets thereon, wherein each of the droplets has a periphery which is in contact with one or more peripheries of another droplet, wherein the suspension comprises a polar solvent, wherein the polymer substrate and the polar solvent produce a surface tension which directs the electrically conductive nanowires to arrange at the periphery of each of the droplets to form a network of connected ring structures; andremoving the polar solvent from the polymer substrate to form a micromesh comprising the electrically conductive nanowires which are retained in the form of the network of connected ring structures.2. The method of claim 1 , wherein spraying the suspension comprises dispersing the electrically conductive nanowires in the polar solvent claim 1 , wherein the polar solvent comprises water claim 1 , methanol claim 1 , aniline claim 1 , acetone claim 1 , chloroform claim 1 , propanol claim 1 , ethyl acetate claim 1 , ethanol claim 1 , or ...

SINTERING TOOL AND METHOD FOR SINTERING AN ELECTRONIC SUBASSEMBLY

Sintering tool () with a cradle for receiving an electronic subassembly (BG) to be sintered, characterized by at least one support bracket (), arranged at two locations opposite the cradle, for fixing a protective film () covering the electronic subassembly (BG). 1. A method for sintering an electronic subassembly comprising the steps of:arranging the electronic subassembly on a cradle of a sintering tool;covering the electronic subassembly with a protective film; andsintering the electronic subassembly;whereby after the covering and before the sintering of the electronic subassembly, the protective film is fixed to at least one support bracket which is in turn fixed at two locations on opposing sides of the cradle, such that the protective film is clamped between the cradle and the at least one support bracket, and wherein the support bracket has a socket configured to receive a connector associated with an upper die.2. The method according to claim 1 , wherein the protective film is a Teflon film.3. The method according to claim 1 , wherein the protective film is of a multi-layered or multi-ply construction.4. The method according to claim 3 , wherein the one layer or ply of the protective film consists of Teflon and another layer or ply consists of Kapton.5. The method according to claim 1 , wherein the protective film has pores or holes penetrating the protective film and allowing a gas exchange through the protective film.6. The method according to claim 1 , wherein the protective film is mechanically detached from an upper die after the sintering by a release device.7. The method according to claim 2 , wherein the protective film is of a multi-layered or multi-ply construction.8. The method according to claim 2 , wherein the protective film has pores or holes penetrating the protective film and allowing a gas exchange through the protective film.9. The method according to claim 3 , wherein the protective film has pores or holes penetrating the protective film ...

SYSTEM AND METHOD FOR THE HYBRID CONSTRUCTION OF MULTI-PIECE PARTS

A multi-piece part includes multiple pieces fabricated via different types of fabrication processes, wherein the multiple parts are configured to be coupled to one another to form the assembly. At least one of the multiple parts is fabricated via an additive manufacturing method. The multi-piece part also includes a holder assembly that couples and holds together the multiple pieces of the multi-piece part, wherein the holder assembly comprises a reversible, mechanical-type coupling. 1. A method , comprising:fabricating a plurality of pieces of a multi-piece part via a plurality of different types of fabrication processes, wherein at least one piece of the plurality of pieces is fabricated via an additive manufacturing process;coupling the plurality of pieces together to assemble the multi-piece part; andsecuring the plurality of pieces of the multi-piece part to one another via a holder assembly.2. The method of claim 1 , wherein fabricating the plurality of pieces comprises fabricating a first alignment feature on a first end face of the at least one piece and fabricating a second alignment feature on a second end face of an additional piece of the plurality of pieces claim 1 , wherein the first alignment feature is configured to removably couple with the second alignment feature.3. The method of claim 2 , wherein coupling the plurality of pieces comprises engaging the first end face of the at least one piece with the second end face of the additional piece to enable the first alignment feature and the second alignment feature to receive and engage with one another.4. The method of claim 1 , wherein fabricating the at least one piece via the additive manufacturing process comprises fabricating the at least one piece via a binderjet process claim 1 , a three-dimensional printing process claim 1 , a direct metal laser melting process claim 1 , or a direct metal laser sintering process.5. The method of claim 1 , comprising fixedly coupling the plurality of pieces via ...

METHOD OF MANUFACTURING AN ORTHODONTIC BRACKET HAVING A LASER SHAPED GREEN BODY

A green metal body includes metal particles and a binder in the shape of an orthodontic bracket and/or base plate. The green metal body is fabricated by being laser-cut with a laser to shape the green metal body into the shape of an orthodontic bracket and/or to carve recesses and/or undercuts into the bonding surface of the bracket. The green metal body is sintered to shrink its volume into a denser and less porous sintered metal body configured to be an orthodontic bracket. The resultant sintered orthodontic bracket includes recesses and/or undercuts in the bonding surface to provide a mechanical aspect when bonded to a tooth. 1. A method of manufacturing an orthodontic appliance comprising:removing binder from a surface portion of a green body composed of particles held together by the binder;removing particles from the surface portion of the green body where the binder has been removed to yield a cut portion defined by the remaining particles of the green body, the cut portion having a shape that is related to the orthodontic appliance;removing additional binder from the green body following removal of the particles from the surface portion of the green body; andsintering the particles to form a sintered body including a sintered cut portion so as to form the orthodontic appliance.2. The method of claim 1 , wherein following sintering claim 1 , the sintered cut portion has a negative shape of a lingual side or a buccal side of a tooth.3. The method of claim 1 , wherein removing binder from the surface portion includes removing binder according to a three-dimensional model of a particular patient's tooth.4. The method of claim 1 , wherein prior to removing binder from the surface portion claim 1 , the method further includes ascertaining a three-dimensional model of the tooth and inputting the three-dimensional model into a computer.5. The method of claim 1 , wherein removing binder from the surface portion is computer controlled according to a three-dimensional ...

TURBULATING COOLING STRUCTURES

In a first embodiment, a hollow gas turbine engine workpiece comprises first and second walls formed via additive manufacturing, and a cooling passage defined between the first and second walls by a surface of the first and second walls having arithmetic average surface roughness of at least 100 μin (0.0025 mm). In a second embodiment, a method of manufacture of a gas turbine engine component comprises depositing successive layers of pulverant material via additive manufacturing to form first and second walls defining a cooling passage therebetween, and loading a grain size of the pulverant material to produce lattice convective cooling design networks of various size and proportions with each having a range of relative roughness values, 0.10<ε/Dh<0.50 to achieve optimal thermal cooling performance along the cooling passage. 1. A hollow gas turbine engine workpiece comprising:a first wall;a second wall; anda cooling passage defined between the first wall and the second wall by surfaces of the first and second walls having a relative roughness ε/Dh between 0.10 and 0.50.2. The hollow gas turbine engine workpiece of claim 1 , wherein the relative roughness ε/Dh is at most 0.30.3. The hollow gas turbine engine workpiece of claim 1 , wherein the relative roughness ε/Dh is at least 0.14.4. The hollow gas turbine engine workpiece of claim 1 , wherein the hollow gas turbine engine workpiece is a gas turbine vane claim 1 , blade claim 1 , air seal claim 1 , or panel claim 1 , and the cooling passage is a vascular cooling passage.5. The hollow gas turbine engine workpiece of claim 1 , wherein the arithmetic average surface roughness is between 100 μin (0.0025 mm) and 1000 μin (0.0254 mm).6. The hollow gas turbine engine workpiece of claim 5 , wherein the arithmetic average surface roughness is less than 600 μin (0.0152 mm).7. The hollow gas turbine engine workpiece of claim 1 , wherein the cooling passage has a minimum passage dimension less than 0.15 inches (3.8 mm).8. The ...

ADDITIVE MANUFACTURING BAFFLES, COVERS, AND DIES

A method includes (a) depositing a layer of a powder material on a work stage, the layer having a thickness, (b) solidifying a portion of the layer based upon data that defines an insert with a body that is shaped to fit into a cavity in a gas turbine engine component, and (c) lowering the work stage by the thickness. Steps (a)-(c) can then be repeated until the insert is complete. The insert can then be removed from the work stage. An insert formed by the above process is also disclosed. 1. A method comprising:(a) depositing a layer of a powder material on a work stage, the layer having a thickness;(b) solidifying a portion of the layer based upon data that defines an insert with a body that is shaped to fit into a cavity in a gas turbine engine component;(c) lowering the work stage by the thickness;(d) repeating steps (a)-(c) until the insert is complete; and(g) removing the insert from the work stage.2. The method of claim 1 , wherein holes are created in the body of the insert while solidifying portions of the layer of the powder material.3. The method of claim 2 , wherein there is a thickened wall portion surrounding the holes in the body of the insert.4. The method of claim 1 , wherein holes are tooled into the body of the insert after the insert has been removed from the work stage.5. The method of claim 4 , wherein there is a thickened wall portion surrounding the holes in the body of the insert.6. The method of claim 1 , wherein localized protrusions are created in the body of the insert while solidifying portions of the layer of powder material.7. The method of claim 1 , wherein localized divots are created in the body of the insert while solidifying portions of the layer of powder material.8. The method of claim 1 , wherein the powder material is solidified using a laser.9. The method of claim 1 , wherein the powder material is a nickel alloy.10. The method of claim 1 , wherein the powder material is deposited on the work stage by rolling it onto the work ...

SEMI-PASSIVE CONTROL OF SOLIDIFICATION IN POWDERED MATERIALS

Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering. 1. A powdered material comprising a plurality of particles , wherein said particles are fabricated from a first material , and wherein each of said particles has a particle surface area that is surface-functionalized with a second material containing nanoparticles and/or microparticles selected to control solidification of said powdered material from a liquid state to a solid state.2. The powdered material of claim 1 , wherein said first material is selected from the group consisting of ceramic claim 1 , metal claim 1 , polymer claim 1 , glass claim 1 , and combinations thereof.3. The powdered material of claim 1 , wherein said second material is selected from the group consisting of metal claim 1 , ceramic claim 1 , polymer claim 1 , carbon claim 1 , and combinations thereof.4. The powdered material of claim 1 , wherein said first material is different than said second material.5. The powdered material of claim 1 , wherein said ...

METHOD FOR THE PRODUCTION OF A MOLDED BLANK FROM METAL POWDER

Disclosed is a method for producing a molded blank from metal powder using a gel-casting process, wherein a starting mixture for the gel-based process is made by mixing the metal powder with a liquid and a binder, the starting mixture being thoroughly mixed in a vacuum. 1. A method for producing a molded blank from metal powder using a gel-casting process , wherein a starting mixture for the gel-casting process is made by mixing the metal powder with a liquid and a binder , wherein the starting mixture is thoroughly mixed in a vacuum.2. The method according to claim 1 , wherein the relationship of the weight percentage of liquid to binder in the starting mixture is between 95 to 5 and 99.9 to 0.1.3. The method according to claim 1 , wherein the relationship of the weight percentage of liquid and binder to metal powder in the starting mixture is between 5 to 95 and 20 to 80.4. The method according to claim 1 , wherein the binder is blended with the liquid to a liquid-binder mixture before this liquid-binder mixture is blended with the metal powder.5. The method according to claim 1 , wherein metal powder is used which is based on cobalt claim 1 , chrome claim 1 , molybdenum claim 1 , wolfram claim 1 , carbide claim 1 , beryllium claim 1 , stainless steel claim 1 , titanium claim 1 , aluminum claim 1 , copper claim 1 , tin or mixtures thereof.6. The method according to claim 1 , wherein claim 1 , preferably distilled claim 1 , water is used as liquid.7. The method according to claim 1 , wherein the binder contains cellulose claim 1 , preferably methyl cellulose.8. The method according to claim 1 , wherein a chemical auxiliary means for the mixing claim 1 , preferably a dispersant claim 1 , is admixed to the starting mixture.9. The method according to claim 1 , wherein the thoroughly mixing in a vacuum is effected in a vacuum chamber claim 1 , wherein a low pressure claim 1 , preferably between 25 and 40 millibar claim 1 , prevails in the vacuum chamber.10. The method ...

Method for manufacturing a metallic component by pre-manufactured bodies

A method for manufacturing a metallic component including the steps of providing a capsule, which defines at least a portion of the shape of the metallic component, arranging metallic material in the capsule, sealing the capsule, subjecting the capsule to Hot Isostatic Pressing for a predetermined time, at a predetermined pressure and at a predetermined temperature, and optionally, removing the capsule. The metallic material is at least one pre-manufactured coherent body, which pre-manufactured coherent body being made of metallic powder, wherein at least a portion of the metallic powder is consolidated such that the metallic powder is held together into a pre-manufactured coherent body. At least one portion of the pre-manufactured coherent body is manufactured by Additive Manufacturing by subsequently arranging superimposed layers of metallic powder.

METHOD OF MANUFACTURING NI ALLOY PART

A method of manufacturing a Ni alloy part includes a solution treatment step of solution treating a sintered compact, which is obtained by sintering and molding a precipitation hardening Ni alloy powder by metal injection molding, by allowing the sintered compact to hold at a temperature of not lower than 1050° C. but not higher than 1250° C. for one hour to five hours, followed by rapidly cooling to room temperature, where the precipitation hardening Ni alloy powder, and an aging treatment step of aging-treating the solution-treated sintered compact by allowing the solution-treated sintered compact to hold at the temperature of not lower than 600° C. but not higher than 800° C., followed by cooling to room temperature. 1. A method of manufacturing a Ni alloy part comprising:a solution treatment step of solution treating a sintered compact, which is obtained by sintering and molding a precipitation hardening Ni alloy powder by metal injection molding, by allowing the sintered compact to hold at a temperature of not lower than 1050° C. but not higher than 1250° C. for one hour to five hours, followed by rapidly cooling to room temperature, where the precipitation hardening Ni alloy powder includes Ti of 0.65% by mass to 1.15% by mass, inclusive, Al of 0.20% by mass to 0.80% by mass, inclusive, Cr of 17.00% by mass to 21.00% by mass, inclusive, Nb of 4.75% by mass to 5.50% by mass, inclusive, Mo of 2.80% by mass to 3.30% by mass, inclusive, Ni of 50.00% by mass to 55.00% by mass, inclusive, and the balance including Fe and unavoidable impurities; andan aging treatment step of aging-treating the solution-treated sintered compact by allowing the solution-treated sintered compact to hold at the temperature of not lower than 600° C. but not higher than 800° C., followed by cooling to room temperature.2. The method of manufacturing a Ni alloy part according to claim 1 , wherein in the solution treatment step claim 1 , the sintered compact is solution treated at a ...

ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREOF

A method for manufacturing an electronic device, the method comprising: providing a conducting wire; forming a mixture with the conducting wire buried therein, wherein the mixture comprises: a first magnetic powder and a second magnetic powder, wherein the mean particle diameter of the first magnetic powder is larger than the mean particle diameter of the second magnetic powder, and the Vicker's Hardness of the first magnetic powder is greater than the Vicker's Hardness of the second magnetic powder by a first hardness difference; and performing a molding process on the conducting wire and the mixture, wherein by means of the first hardness difference of the first magnetic powder and the second magnetic powder, the mixture and the conducting wire buried therein are combined to form an integral magnetic body at a temperature lower than the melting point of the conducting wire. 1. A method for manufacturing an electronic device , the method comprising:providing a conducting wire;forming a mixture with the conducting wire buried therein, wherein the mixture comprises: a first magnetic powder and a second magnetic powder, wherein the mean particle diameter of the first magnetic powder is larger than the mean particle diameter of the second magnetic powder, and the Vicker's Hardness of the first magnetic powder is greater than the Vicker's Hardness of the second magnetic powder by a first hardness difference; andperforming a molding process on the conducting wire and the mixture, wherein by means of the first hardness difference of the first magnetic powder and the second magnetic powder, the mixture and the conducting wire buried therein are combined to form an integral magnetic body at a temperature lower than the melting point of the conducting wire.2. The method according to claim 1 , wherein the molding process is performed at the temperature lower than 300° C.3. The method according to claim 1 , wherein performing the molding process comprises applying a molding ...

METHOD OF MANUFACTURING GAS TURBINE ENGINE ELEMENT HAVING AT LEAST ONE ELONGATED OPENING

A method of manufacturing a gas turbine engine element, for example a shroud segment. An insert has at least one elongated feature received in a mold cavity. A powder injection molding feedstock is injected. When the green part is disengaged from the mold, each elongated feature is slid out of the green part to define a respective elongated passage. The cross-sectional dimension of the elongated feature may be 0.020 inches or less, and/or a ratio between the length and cross-sectional dimension of the elongated feature may be at least 25. The method may include, after debinding and sintering, projecting a coating material while defining an obstruction between source of coating material and the open end of each elongated feature with a shoulder of the element to prevent the coating material from reaching the open end, followed by machining to remove at least a part of the shoulder. 1. A method of manufacturing a cooled shroud segment for a gas turbine engine , the method comprising:providing a mold defining a mold cavity having a shape corresponding to the shroud segment, the mold cavity including a platform cavity shaped to define a platform of the shroud segment, the platform cavity having a mold surface corresponding to an inner surface of the platform of the shroud segment;providing an insert extending partly through the mold cavity, the insert including a plurality of elongated pins extending in the platform cavity along and spaced apart from the mold surface;injecting a powder injection molding feedstock into the mold cavity to obtain a green part through which at least part of the elongated pins extend;disengaging the green part from the mold, including sliding the elongated pins out of the green part to define a plurality of elongated cooling passages in the platform of the shroud segment; anddebinding and sintering the green part to define the shroud segment.2. The method as defined in claim 1 , wherein:the insert is a first insert, and providing the mold ...

MIM-FORMED TiA1 TURBINE WHEEL SURROUNDING A CAST/MACHINED CORE

A number of variations may include a method that may include casting or providing a central core comprising titanium aluminide; and metal injection molding a shell comprising titanium aluminide around the central core to produce a rotor assembly.

MANUFACTURING OF TURBINE SHROUD SEGMENT WITH INTERNAL COOLING PASSAGES

A turbine shroud segment is metal injection molded (MIM) about a low melting point material insert. The low melting point material is dissolved using heat during the heat treatment cycle required for the MIM material, thereby leaving internal cooling passages in the MIM shroud segment without extra manufacturing operation. 1. A method of manufacturing a turbine shroud segment with internal cooling passages , the method comprising: forming an insert from a low melting point material , the insert having a configuration corresponding to that of the internal cooling passages to be formed in the turbine shroud segment; positioning the insert in a metal injection mold defining a mold cavity having a configuration corresponding to the configuration of the turbine shroud segment to he produced; metal injection molding (MIM) a shroud body about the insert , including injecting a base metal powder mixture into the mold at a temperature inferior to a melting temperature of the insert; and removing the insert by applying a heat treatment to the shroud body at a temperature superior to the melting temperature of the insert , thereby causing the dissolution of the insert.2. The method defined in claim 1 , wherein applying a heat treatment comprises sintering the shroud body.3. The method defined in claim 1 , wherein the base metal powder mixture is injected at a temperature of not more than about 250 deg. Fahrenheit.4. The method defined in claim 1 , wherein the base metal powder mixture is injected at a pressure of not more than about 100 psi.5. The method defined in claim 1 , wherein the insert is made out of plastic and the base metal powder mixture is injected at a temperature inferior to about 250 deg. Fahrenheit and at a pressure inferior to about 100 psi.6. The method defined in claim 1 , wherein the low temperature melting material is selected from a group consisting of: plastic material claim 1 , wax and Tin/Bismuth alloy.7. The method defined in claim 1 , wherein ...

PENDULUM ASSEMBLY FOR A CRANKSHAFT PENDULUM HAVING CAST-IN NEAR NET SHAPE HARDENED INSERTS

A pendulum crankshaft for an internal combustion engine includes a pendulum crankshaft having pendulum crank rolling path inserts that are cast into the component during the casting process. The rolling path inserts are positioned in a mold prior to casting. By including the rolling path inserts in the component during the molding process, the need to press the rolling path insert into the component after the component is cast eliminates the resulting stresses that would otherwise result. Machining and subsequent heat treatment are unnecessary. The component can be one or both of the crankshaft pendulum and the pendulum carrier. The rolling path may be formed from a metal such as sintered powdered metal. The flowable material may be a metal such as iron. The resulting component is free of stress regions, such as on the carrier strap, that normally result from methods that involve press-fitting the rolling path insert into the component. 1. A method of producing a crankshaft pendulum assembly for an internal combustion engine , the method comprising:forming a mold for a crankshaft pendulum assembly component, said component being selected from the group consisting of a pendulum carrier and a crankshaft pendulum movably attached to said carrier;forming a rolling path insert;positioning said rolling path insert in said mold; andinjecting flowable material into said mold to form said component.2. The method of producing a crankshaft pendulum assembly of claim 1 , wherein said rolling path insert is formed from a metal selected from the group consisting of sintered powdered metal and hardened steel.3. The method of producing a crankshaft pendulum assembly claim 1 , wherein said flowable material is a molten metal.4. The method of producing a crankshaft pendulum assembly claim 1 , wherein said flowable material is molten iron.5. The method of producing a crankshaft pendulum assembly of claim 1 , wherein each of said components includes a pair of said rolling path inserts. ...

Structural Component that Will Fragment into Particles of Selected Geometry and Reactivity

An embodiment in accordance with the present invention provides a method for creating and consolidating fragments and a useable structure formed from said consolidated fragments. The method includes swaging a metal powder into a first consolidated structure. The consolidated structure is ground to form particles and the particles are sifted to select those with a predetermined diameter. The particles having the predetermined diameter can then be swaged into a second consolidated structure. The resultant second consolidated structure is therefore configured to fragment controllably. The second consolidated structure can also be formed from reactive metal laminates such that the structure also has chemical energy. 1. A method for forming a structural component that will fragment into particles of selected geometry and reactivity comprising:swaging a metal powder into a consolidated structure;grinding the consolidated structure into particles;sifting the particles to select particles for use having a predetermined diameter;swaging the particles having the predetermined diameter into the structural component that will fragment into particles of selected geometry and reactivity.2. The method wherein the metal powder is configured to impart the particles with the selected reactivity.3. The method of wherein the consolidated structure takes the form of a rod.4. The method of wherein the structural component takes the form of a tube.5. The method of wherein swaging the structural component further comprises reducing a cross-sectional area of the structural component by half.6. The method of wherein the predetermined diameter is between approximately 1 mm to approximately 2.3 mm.7. The method of further comprising using a rotating die for swaging the metal powder.8. The method of wherein the rotating die further comprises a progression of dies.9. The method of further comprising using a rotating die for swaging the particles having the predetermined diameter.10. The method ...

Method for producing a component, and device

A method for producing a component for a turbomachine, having the additive build-up of the component by an additive production method from a base material for the component and the introduction of material fibers into a construction for the component during the additive build-up in such a way that the material fibers are oriented in a circumferential direction of the component around a component axis and in such a way that a fiber composite material is produced, including the material fibers and a base material that is solidified by the additive build-up. A corresponding component is produced by the method and a corresponding device is used for producing the component.

Systems and Methods of Fabrication and Use of Wear-Resistant Materials

Discussed herein are systems and methods of forming hardfacing coatings and films containing Q-carbon diamond particles for use in downhole drilling tooling and other tools where wear-resistant coating is desirable. The Q-carbon diamond-containing layers may be coated with matrix material and/or disposed in a matrix to form the coating, or the Q-carbon diamond layer may be formed directly from a diamond-like-carbon on a substrate.

COATING METHOD

When forming valve seat coats at opening portions (to ) of intake ports () provided at a cylinder block mounting surface () of a semimanufactured cylinder head (), the nozzle of a cold spray apparatus moves along a nozzle movement path for air intake (Inp) that is set between any two of the plurality of opening portions (to ), while continuing to spray a raw material powder. When forming valve seat coats at opening portions (to ) of exhaust ports (), the nozzle moves along a nozzle movement path for air exhaust (Enp) that is set between any two of the plurality of opening portions (to ), while continuing to spray the raw material powder. 111.-. (canceled)12. A coating method comprising:preparing a coating target component having a plurality of coating portions that are not continuous with one another;causing each of the plurality of coating portions and a nozzle of a cold spray apparatus to sequentially face each other while relatively moving the coating target component and the nozzle; andspraying a raw material powder onto the coating portions facing the nozzle using a cold spray method to form a coat on each of the plurality of coating portions,wherein in a nozzle movement path from a coating portion having been formed with the coat to another coating portion to be subsequently formed with the coat, injection of the raw material powder from the nozzle is continued and an angle of the nozzle with respect to the coating target component is set larger or smaller than that when the nozzle forms coats on the coating portions.13. A coating method comprising:preparing a semimanufactured cylinder head having a main body portion with a cylinder block mounting surface, a combustion chamber upper wall portion provided at the cylinder block mounting surface, and a plurality of opening portions of intake or exhaust ports, the opening portions being not continuous with one another;causing each of the plurality of opening portions and a nozzle of a cold spray apparatus to ...

WELLBORE ISOLATION DEVICE MADE FROM A POWDERED FUSIBLE ALLOY MATRIX

A method of producing at least a portion of a wellbore isolation device comprising: providing a fusible alloy matrix in a powdered form; placing at least the particles of the fusible alloy matrix powder into a mold; compacting the particles located inside the mold via an application of pressure; and fusing the particles together to form a solid material, wherein the solid material forms the at least a portion of the wellbore isolation device. 1. A method of producing at least a portion of a wellbore isolation device comprising:providing a fusible alloy matrix in a powdered form;placing at least the particles of the fusible alloy matrix powder into a mold;compacting the particles located inside the mold via an application of pressure; andfusing the particles together to form a solid material, wherein the solid material forms the at least a portion of the wellbore isolation device.2. The method according to claim 1 , wherein the isolation device is a ball claim 1 , a plug claim 1 , a bridge plug claim 1 , a wiper plug claim 1 , or a packer.3. The method according to claim 1 , wherein the metal of the fusible metal alloy is selected from the group consisting of lead claim 1 , tin claim 1 , bismuth claim 1 , indium claim 1 , cadmium claim 1 , silver claim 1 , gallium claim 1 , zinc claim 1 , antimony claim 1 , copper claim 1 , and combinations thereof.4. The method according to claim 1 , wherein the fusible alloy matrix undergoes a phase transformation at or near the bottomhole temperature of the wellbore after a desired amount of time.5. The method according to claim 1 , wherein the step of placing further comprises placing other particles into the mold along with the particles of the fusible alloy matrix powder.6. The method according to claim 5 , wherein the other particles are density-reducing particles claim 5 , strength-enhancing particles claim 5 , or a combination thereof.7. The method according to claim 5 , wherein the other particles are selected from the ...

POLYMER AMMUNITION CARTRIDGE HAVING A METAL INJECTION MOLDED PRIMER INSERT

One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash hole positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole. 1. An ammunition cartridge having polymer casing and aninjection molded primer insert comprising: a top surface opposite a bottom surface,', 'a substantially cylindrical coupling element extending away from the bottom surface forming an interior surface inside the substantially cylindrical coupling element,', 'a primer recess in the top surface that extends toward the bottom surface,', 'a primer flash aperture positioned in the primer recess to extend through the bottom surface,', 'a flash hole groove positioned in the primer recess and extends around the primer flash aperture, and', 'a flange that extends circumferentially about an outer edge of the top surface, wherein the flange is adapted to receive a polymer overmolding;, 'an injection molded primer insert for polymer ammunition comprising'}a polymeric middle body molded over the injection molded primer insert to extend to a cylindrical middle body coupling region molded from a first ...

Method of making a polymer ammunition cartridge

One embodiment of the present invention provides a method of making a polymeric ammunition cartridge having wicking texturing about the projectile aperture.

Powder for Mold

Provided is a powder for metal molds that is less likely to cause solidification cracking even in a process involving rapid melt-quenching solidification. The powder for metal molds is made of an alloy. The alloy includes C: 0.25 mass % to 0.45 mass %, Si: 0.01 mass % to 1.20 mass %, Mn: more than 0 mass % to 1.50 mass %, Cr: 2.0 mass % to 5.5 mass %, and V: 0.2 mass % to 2.1 mass %. The alloy further includes at least one of Mo: more than 0 mass % to 3.0 mass %, W: more than 0 mass % to 9.5 mass %, and Co: more than 0 mass % to 4.5 mass %. The balance of the alloy is Fe and incidental impurities. The alloy satisfies the expression: (Mn %) 3 /S %>6.7. The total content of P, S and B in the alloy is 0.020 mass % or less.

DEPOSITION OF METAL DIES FOR PART FABRICATION

A method for synthesizing parts using a die comprising: providing a three-dimensional model; converting the three-dimensional model into G-code; executing the G-code to deposit a metal die; determining whether one or more dimensions of the metal die are within predetermined tolerance levels; based on the determination, milling the die if the one or more dimensions are not within predetermined tolerance levels or depositing additional metal if the one or more dimensions are not within predetermined tolerance levels; and synthesizing a part using the metal die. 1. A method for synthesizing parts using a die comprising:providing a three-dimensional model;converting the three-dimensional model into G-code;executing the G-code to deposit a metal die;determining whether one or more dimensions of the metal die are within predetermined tolerance levels;based on the determination, milling the die if the one or more dimensions are not within predetermined tolerance levels ordepositing additional metal if the one or more dimensions are not within predetermined tolerance levels; andsynthesizing a part using the metal die.2. The method of claim 1 , wherein the metal die is deposited using electron beam wire deposition.3. The method of claim 1 , wherein the metal die is deposited using power bed technology.4. The method of claim 1 , wherein the metal die is deposited using laser metal powder deposition.5. The method of claim 1 , wherein the metal die is deposited using three-dimensional printing.6. The method of claim 1 , wherein synthesizing a part using the metal die comprises using the die as a stamp.7. The method of claim 1 , further comprising depositing an outer layer that has a greater hardness than the deposited metal.8. The method of claim 1 , wherein the three-dimensional model comprises conformal cooling lines.9. The method of claim 1 , wherein the part is an automobile part.10. A system for synthesizing parts using a die comprising:a metal deposition system configured ...

FERROUS DISINTEGRABLE POWDER COMPACT, METHOD OF MAKING AND ARTICLE OF SAME

A process for preparing a disintegrable powder compact, the process comprises: combining: a primary particle comprising a ferrous alloy which comprises carbon; and a secondary particle to form a composition; compacting the composition to form a preform; and sintering the preform to form the disintegrable powder compact by forming a matrix from one of the primary particle or the secondary particle; and forming a plurality of dispersed particles from the other of the primary particle or the secondary particle, wherein the dispersed particles are dispersed in the matrix, the disintegrable powder compact is configured to disintegrate in response to contact with a disintegration fluid, and the primary particle and secondary particle have different standard electrode potentials. 1. A slip element , comprising:a substrate formed from a powder compact degradable upon exposure to a fluid;an outer surface disposed on the substrate; anda grade layer disposed between the substrate and the outer surface and the substrate;wherein the powder compact comprises:a matrix;a plurality of dispersed particles comprising a particle core material dispersed in the matrix;a ferrous alloy comprising carbon disposed in one of the matrix or particle core material; anda secondary element disposed in the other of the matrix or particle core material,the matrix and the plurality of dispersed particles having different standard electrode potentials.2. The slip element of claim 1 , wherein the outer surface comprises a surface hardened material provided by surface treating the substrate.3. The slip element of claim 2 , wherein the outer surface comprises a surface hardened product of the matrix and dispersed particles formed in response to subjecting the disintegrable powder compact to carburizing claim 2 , nitriding claim 2 , carbonitriding claim 2 , boriding claim 2 , flame hardening claim 2 , induction hardening claim 2 , laser beam hardening claim 2 , electron beam hardening claim 2 , hard ...

Article having plurality of functionally graded regions and a method of manufacturing thereof

The present disclosure generally relates to an article used in the manual transmission gearbox in automobiles. More particularly, it relates to an article used in manual transmission gearbox, namely the shifter dog, composition used for manufacturing the shifter dog and a method of manufacturing the shifter dog.

Composition of particulate materials and process for obtaining self-lubricating sintered products

The metallurgical composition comprises a main particulate metallic material, for example iron or nickel, and at least one alloy element for hardening the main metallic material, which form a structural matrix; a particulate solid lubricant, such as graphite, hexagonal boron nitride or mixture thereof; and a particulate alloy element which is capable of forming, during the sintering of the composition conformed by compaction or by injection molding, a liquid phase, agglomerating the solid lubricant in discrete particles. The composition may comprise an alloy component to stabilize the alpha-iron matrix phase, during the sintering, in order to prevent the graphite solid lubricant from being solubilized in the iron. The invention further refers to the process for obtaining a self-lubricating sintered product.

GRADIENT SINTERED METAL PREFORM

A method of forming a metal component with two and three dimensional internal functionally graded alloy composition gradients includes forming the component by a powder based layer-by-layer additive manufacturing process. The areal composition distribution of each powder layer is determined by simultaneously depositing different powders and powder mixtures through a mixing valve attached to a single nozzle during powder deposition. The layers are then sintered with a directed energy source to form a forging preform. The preform is then forged to form a component. 1. A method of forming a metal component with two and three dimensional internal alloy compositional gradients comprises:forming the component by a powder-based layer-by-layer additive manufacturing process;controlling the areal composition of each powder layer by depositing different powders to different areas through a single powder deposition nozzle during powder deposition; andsintering the layer with a directed energy source to form the component.2. The method of claim 1 , wherein the directed energy source is a laser.3. The method of claim 1 , wherein the powder deposition nozzle is positioned by a computer controlled robotic support.4. The method of claim 1 , wherein the different powders are selected with the use of a mixing valve attached to two or more powder sources.5. The method of claim 4 , wherein the mixing valve is controlled by manual or electronic means.6. The method of claim 5 , wherein depositing different powders comprises simultaneously depositing two or more different powder materials.7. The method of wherein the two-dimensional composition gradients are radial composition gradients.8. The method of claim 1 , wherein the metal is a nickel based claim 1 , iron based claim 1 , cobalt based superalloy or mixtures thereof.9. The method of claim 1 , wherein the component is a forging preform.10. The method of claim 9 , and further comprising forging the preform into a turbine disk.11. The ...

Method for manufacturing a structural component for a turbomachine

A method for producing engine components with a complex geometric structure particularly for an aircraft engine, includes providing a first component that has a first sintered state with a first degree of compaction; providing at least one second component that has a second sintered state with a second degree of compaction; wherein the second degree of compaction is lower than the first degree of compaction; and wherein the at least one second component has an opening, into which a portion of the first component is introducible; and wherein the opening is dimensioned to close substantially completely during a sintering joining process, to form a force-fitting sintered joint with the first component; introducing the first component into the opening; and carrying out the sintering joining process.

Method of manufacturing a component using a sinter joining process

The production of engine parts with a complex geometrical structure. More particularly, a method for producing a complex part, comprising making available a first component, having a thermal expansion coefficient of the first component; a first joining surface; and a first bearing surface; making available a second component, having a thermal expansion coefficient of the second component; a second joining surface; a second bearing surface; and making available a jacket element, having a thermal expansion coefficient of the jacket element; and a jacket-element bearing surface; and heating the first component, the second component and the jacket element from a first temperature to a second temperature in order to carry out a joining process on the first component and the second component. Furthermore, a part, in particular for a gas turbine engine for an aircraft, and to a gas turbine engine of this kind.

Methods for fabricating turbine engine components

Methods are provided that include depositing a nickel-base superalloy powder including gamma nickel solid solution and gamma prime (Ni 3 Al) solid solution phases onto a seed crystal having a predetermined primary orientation, fully melting the powder and a portion of the seed crystal at a superliquidus temperature to form an initial layer having the predetermined primary orientation, heat treating the layer at subsolvus temperatures to precipitate gamma prime solid solution phase particles, depositing additional powder over the layer, melting the deposited powder and a portion of the initial layer at a superliquidus temperature to form a successive layer having the predetermined primary orientation, heat treating the layer at a subsolvus temperature to precipitate gamma prime solid solution phase particles, and repeating depositing additional powder, melting the additional powder and the portion of the successive layer at the superliquidus temperature, and heat treating the successive layer at a subsolvus temperature.

Cu-BASED SINTERED SLIDING MATERIAL, AND PRODUCTION METHOD THEREFOR

The Cu-based sintered sliding material has a composition including, by mass %, 7% to 35% of Ni, 1% to 10% of Sn, 0.9% to 3% of P, and 0.5% to 5% of C, with a remainder of Cu and inevitable impurities, wherein the Cu-based sintered sliding material includes a sintered body including: alloy grains that contain Sn and C and contain a Cu-Ni-based alloy as a main component; grain boundary phases that contain Ni and P as main components and are dispersedly distributed in grain boundaries of the alloy grains; and free graphite that intervenes at the grain boundaries of the alloy grains, the Cu-based sintered sliding material has a structure in which pores are dispersedly formed in the grain boundaries of the alloy grains, and an amount of C in a metal matrix including the alloy grains and the grain boundary phases is, by mass %, 0.02% to 0.20%. 1. A Cu-based sintered sliding material having a composition comprising , by mass %:7% to 35% of Ni;1% to 10% of Sn;0.9% to 3% of P;0.5% to 5% of; anda remainder of Cu and inevitable impurities,wherein the Cu-based sintered sliding material includes a sintered body including: alloy grains that contain Sn and C and contain a Cu-Ni-based alloy as a main component; grain boundary phases that contain Ni and P as main components and are dispersedly distributed in grain boundaries of the alloy grains; and free graphite that intervenes at the grain boundaries of the alloy grains,the Cu-based sintered sliding material has a structure in which pores are dispersedly formed in the grain boundaries of the alloy grains, andan amount of C in a metal matrix including the alloy grains and the grain boundary phases is, by mass %, 0.02% to 0.20%.2. The Cu-based sintered sliding material according to claim 1 , wherein a porosity is 13% to 28%.3. A method for producing a Cu-based sintered sliding material claim 1 , the method comprising:a mixing step of mixing a plurality of types of powders to obtain a mixed powder;a molding step of press-molding the ...

3d printed subsurface tool having a metal diaphragm

A subsurface tool adapted to extend within a wellbore that includes an outer sleeve defining a first passageway; an inner sleeve disposed within the first passageway to form an annulus between the outer sleeve and inner sleeve; and a first annular diaphragm extending between the outer sleeve and the inner sleeve to fluidically isolate a first portion of the annulus from and a second portion of the annulus; wherein when the tool is in a first configuration, the first annular diaphragm is integrally formed with the inner sleeve and outer sleeve to form a single-component tool.

Cu-BASED SINTERED SLIDING MEMBER

A Cu-based sintered sliding member that can be used under high-load conditions. The sliding member is age-hardened, including 5 to 30 mass % Ni, 5 to 20 mass % Sn, 0.1 to 1.2 mass % P, and the rest including Cu and unavoidable impurities. In the sliding member, an alloy phase containing higher concentrations of Ni, P and Sn than their average concentrations in the whole part of the sliding member, is allowed to be present in a grain boundary of a metallic texture, thereby achieving excellent wear resistance. Hence, without needing expensive hard particles, there can be obtained, at low cost, a Cu-based sintered sliding member usable under high-load conditions. Even more excellent wear resistance is achieved by containing 0.3 to 10 mass % of at least one solid lubricant selected from among graphite, graphite fluoride, molybdenum disulfide, tungsten disulfide, boron nitride, calcium fluoride, talc and magnesium silicate mineral powders. 1. A method of producing a Cu-based sintered sliding member comprising the steps of:preparing a mixed compound by mixing 5 to 30% by mass of Ni, 5 to 20% by mass of Sn, 0.1 to 1.2% by mass of P and the rest including Cu and unavoidable impurities;adding 0.5% by mass of zinc stearate to the mixed compound and then mixing together for 20 minutes using a V-type mixer;producing a green compact by pressure molding the resultant mixed compound at a given pressure within 200 to 300 MPa;producing a sintered compact by sintering the green compact at a given temperature within a range of 840 to 940 degrees C. in an atmosphere of an endothermic gas;sizing the sintered compact;allowing the sintered compact to go through an aging treatment for 1 hour in a non-oxidizing atmosphere at a given temperature within 350 to 450 degrees C.; andimpregnating the Cu-based sintered sliding member with a synthetic oil.2. The method according to claim 1 , further comprising the step of:mixing with the mixed compound 0.3 to 10% by mass of at least one solid ...

ARCHITECTURAL MANUFACTURES, APPARATUS AND METHODS USING ADDITIVE MANUFACTURING TECHNIQUES

An apparatus, method and manufacture utilizes additive manufacturing techniques to produce architectural manufactures such as windows and doors. The manufactures may have a composite construction and may feature inclusions like metal plates and reinforcements. The model used for controlling the manufacturing process may be derived from digital scanning of the structure on which the manufacture is used. Optionally, a finite element analysis is used to test the model and alter it in response to stress and/or thermal requirements. 1. An architectural manufacture , comprising:A plurality of spatially distributed deposits of material connected one to another to form the architectural manufacture.2. The manufacture of claim 1 , wherein the deposits are in the form of least one of dots claim 1 , lines or ribbons.3. The manufacture of claim 1 , wherein the architectural manufacture is monolithic.4. The manufacture of claim 1 , wherein the deposits are spatially distributed to form areas of greater and lesser mechanical strength.5. The manufacture of claim 4 , wherein the areas of greater mechanical strength have thicker or denser structural walls.6. The manufacture of claim 4 , wherein the areas of greater mechanical strength have a rib on a surface thereof.7. The manufacture of claim 6 , wherein the rib is internal to the manufacture.8. The manufacture of claim 6 , wherein the manufacture has a corner and the rib is at the corner.9. The manufacture of claim 1 , wherein the manufacture has hollows therein.10. The manufacture of claim 9 , wherein the hollows are defined by exterior members and internal members.11. The manufacture of claim 10 , wherein the exterior members include a plurality of exterior walls and the internal members include a network of structural elements.12. The manufacture of claim 10 , wherein the network of structural elements includes a plurality of pyramids.13. The manufacture of claim 1 , wherein the manufacture has a plurality of internal hollow ...

Method for fabricating a three-dimensional metal part using a conformable fugitive material

The present invention is directed towards a method for fabricating a three-dimensional metal, ceramic, and/or cermet part, the method comprising forming the three-dimensional metal, ceramic, and/or cermet part by an additive manufacturing technique; encapsulating the three-dimensional metal, ceramic, and/or cermet part in a conformable fugitive material to form an encapsulated three-dimensional metal, ceramic, and/or cermet part; and cold isostatic pressing the encapsulated three-dimensional metal, ceramic, and/or cermet part with pressurized incompressible fluid that contacts the conformable fugitive material. Also disclosed are three-dimensional metal, ceramic, and/or cermet parts fabricated according to said method.

METHOD FOR PRODUCING A MACHINING SEGMENT FOR THE DRY MACHINING OF CONCRETE MATERIALS

A method for producing a machining segment for a machining tool, where the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment, includes producing a green body by placing first hard material particles in depressions of a first press punch and applying a first matrix material to the first hard material particles. The green body is processed by hot pressing under temperature and pressure between the first press punch, which forms an upper side of the machining segment, and a second press punch, which forms the underside, to form the machining segment, where the upper side is opposite from the underside. 17.-. (canceled)8. A method for producing a machining segment for a machining tool , wherein the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment , comprising the steps of:producing a green body by placing first hard material particles in depressions of a first press punch and applying a first matrix material to the first hard material particles; andprocessing the green body by hot pressing under temperature and pressure between the first press punch, which forms an upper side of the machining segment, and a second press punch, which forms the underside, to form the machining segment, wherein the upper side is opposite from the underside.9. The method as claimed in further comprising the step of applying a protective layer of the first matrix material into the depressions of the first press punch prior to the placing of the first hard material particles.10. The method as claimed in further comprising the step of applying a protective layer of a second matrix material into the depressions of the first press punch prior to the placing of the first hard material particles claim 8 , wherein the second matrix material is different from the first matrix material.11. The method as claimed in further comprising the step of encasing the first hard material ...

Method for Producing a Machining Segment for the Dry Machining of Concrete Materials

A method for producing a machining segment for a machining tool includes producing a green body by placing first hard material particles in respective depressions of a first press punch and applying a first matrix material to the placed first hard material particles. The green body is compacted by pressure between the first press punch, which forms an upper side of the machining segment, and a second press punch, which forms an underside of the machining segment, to form a compact body. The compact body is processed by temperature or by infiltration to produce the machining segment. 17.-. (canceled)8. A method for producing a machining segment for a machining tool , wherein the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment , comprising the steps of:producing a green body by placing first hard material particles in respective depressions of a first press punch and applying a first matrix material to the placed first hard material particles;compacting the green body by pressure between the first press punch, which forms an upper side of the machining segment, wherein the upper side is opposite from the underside, and a second press punch, which forms the underside, to form a compact body; andprocessing the compact body by temperature or by infiltration to produce the machining segment.9. The method as claimed in further comprising the step of applying a layer of the first matrix material into the depressions of the first press punch prior to the placing of the first hard material particles in the depressions.10. The method as claimed in further comprising the step of applying a layer of a second matrix material into the depressions of the first press punch prior to the placing of the first hard material particles in the depressions claim 8 , wherein the second matrix material is different from the first matrix material.11. The method as claimed in further comprising the step of encasing the first hard ...

Method for Producing a Machining Segment for the Dry Machining of Concrete Materials

A method for producing a machining segment for a machining tool, where the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment, includes producing a green body by placing first hard material particles in a first matrix material in a defined particle pattern. The green body is compacted by pressure between a first press punch, which forms the underside, and a second press punch, which forms an upper side of the machining segment, to form a compact body. The compact body is processed by temperature or by infiltration to produce the machining segment. The second press punch has depressions in a pressing surface where an arrangement of the depressions corresponds to the defined particle pattern of the first hard material particles. 17.-. (canceled)8. A method for producing a machining segment for a machining tool , wherein the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment , comprising the steps of:producing a green body by placing first hard material particles in a first matrix material in a defined particle pattern;compacting the green body by pressure between a first press punch, which forms the underside, and a second press punch, which forms an upper side of the machining segment, to form a compact body, wherein the upper side is opposite from the underside and wherein the second press punch has depressions in a pressing surface and wherein an arrangement of the depressions corresponds to the defined particle pattern of the first hard material particles; andprocessing the compact body by temperature or by infiltration to produce the machining segment.9. The method as claimed in further comprising the step of applying an outer layer of the first matrix material to the green body after the placing of the first hard material particles.10. The method as claimed in further comprising the step of applying an outer layer of a second matrix material ...

Method for Producing a Green Body and Method for Further Processing the Green Body Into a Machining Segment for the Dry Machining of Concrete Materials

A method for producing a green body for a machining segment, where the machining segment is connectable to a basic body of a machining tool by an underside of the machining segment, includes placing first hard material particles in respective depressions of a first press punch in a defined particle pattern and applying a first matrix material to the placed first hard material particles.

Pre-sintered preform and process

A process includes placing a powder composition of a first metal powder of a first alloy and a second metal powder of a second alloy in a ceramic die and sintering the powder composition in the ceramic die to form a sintered rod in the ceramic die. The process also includes removing the sintered rod from the ceramic die and slicing the sintered rod into a plurality of pre-sintered preforms.

FUEL CELL INTERCONNECT

Methods for fabricating an interconnect for a fuel cell stack include placing a compressed metal powder interconnect on a porous support, and sintering the interconnect in the presence of a non-oxidizing gas. The method may further include placing the sintered interconnect on a porous support, and oxidizing the interconnect in the presence of flowing air, or placing the sintered interconnect on a dense, non-porous support, and oxidizing the interconnect in the presence of a gas comprising pure oxygen or an oxygen/inert gas mixture that is substantially nitrogen-free. 1. An interconnect for a fuel cell stack , comprising:a first plurality of ribs extending from a first major surface of the interconnect and defining a first plurality of gas flow channels between the ribs, the ribs extending between a first rib end and a second rib end and having a tapered profile in a vertical dimension, perpendicular to the first major surface of the interconnect, proximate at least one of the first rib end and the second rib end,wherein the ribs comprise a flat upper surface and rounded edges between the flat upper surface and the adjacent gas flow channels, the rounded edges having a first radius of curvature; andwherein the gas flow channels comprise a rounded surface having a second radius of curvature, different from the first radius of curvature.2. The interconnect of claim 1 , wherein the ribs further have a tapered profile in a horizontal dimension claim 1 , parallel to the first major surface of the interconnect claim 1 , proximate at least one of the first rib end and the second rib end.3. The interconnect of claim 1 , further comprising a second plurality of ribs extending from a second major surface of the interconnect claim 1 , opposite the first major surface claim 1 , and defining a second plurality of gas flow channels between the second plurality of ribs claim 1 , the second plurality of ribs extending between a first rib end and a second rib end and having a tapered ...

THREE-DIMENSIONAL MODELED OBJECT MADE OF METAL AND METHOD FOR MANUFACTURING THREE-DIMENSIONAL MODELED OBJECT MADE OF METAL

A three-dimensional modeled object made of metal including a gas flow path is provided. The gas flow path includes a first structure portion with a lattice structure including a plurality of linear vent holes with a maximum width of equal to or greater than 0.01 mm and equal to or less than 0.10 mm and a frame body portion with a width of equal to or greater than 0.08 mm and equal to or less than 0.25 mm and with a solidification density of equal to or greater than 90%, and has a thickness of equal to or greater than 1 mm and equal to or less than 10 mm. 1. A three-dimensional modeled object made of metal comprising:a gas flow path that comprises a first structure portion with a lattice structure comprising a plurality of linear vent holes with a maximum width of equal to or greater than 0.01 mm and equal to or less than 0.10 mm and a frame body portion with a width of equal to or greater than 0.08 mm and equal to or less than 0.25 mm and with a solidification density of equal to or greater than 90%, a thickness of the first structure portion being equal to or greater than 1 mm and equal to or less than 10 mm; and a second structure portion with a space dividing structure with a polygonal shape comprising a plurality of linear vent holes with a width that is equal to or greater than 1.5 times the maximum width of the plurality of linear vent holes of the first structure portion, the plurality of linear vent holes of the second structure portion being connected to the plurality of linear vent holes of the first structure portion, and a frame body portion with a sintered density, a solidification density of equal to or greater than 90%, the second structure portion being integrally coupled to the first structure portion.2. The three-dimensional modeled object made of metal according to claim 1 , wherein the second structure portion has a tapered shape with a thickness that decreases toward a central portion of the gas flow path.3. A method for manufacturing a three- ...

IMPELLER DESIGN AND MANUFACTURING METHOD WITH PENTAGONAL CHANNEL GEOMETRY

An impeller includes a body with an interior channel extending through the body along a centerline axis of the impeller. A plurality of blades is connected to the body on a forward end of the impeller centerline axis. The plurality of blades surrounds the interior channel and is fluidly connected to an array of inlets. An array of pentagonal channels extends through the body and radially outward in a spiral pattern. Each pentagonal channel is fluidly connected to a corresponding vane inlet and a corresponding pentagonal-shaped outlet. Each channel maintains a pentagonal cross-section shape from the inlet to the outlet. Each downward-sloping face of the cross section is more than 35 degrees from a horizontal plane perpendicular to the centerline axis of the impeller. 1. A fuel pump comprising:a main housing disposed along a housing axis extending in a fluid flow direction from a top end to a bottom end of the main housing;a mount housing connected to and extending axially from the main housing;a fluid inlet into the main housing; a body disposed along the housing axis;', 'an array of pentagonal channels extending symmetrically outward from the center of the body in a spiral pattern about the housing axis; and', 'wherein every overhang angle between a radial plane and a top-to-bottom axially sloping surface defining any of the pentagonal channels is at least 35 degrees;, 'an impeller contained within the main housing and fluidly connected to the fluid inlet, wherein the impeller comprisesa drive shaft connected to the impeller and contained within the main housing and the mount housing; anda bearing surrounding the drive shaft and that is contained within the mount housing.2. The fuel pump of claim 1 , wherein each channel of the array of pentagonal channels comprises:a bottom side extending radially with respect to the housing axis;a first sidewall extending axially with respect to the housing axis and defining an outer radial extent of the bottom side by forming a ...

A METHOD FOR THE MANUFACTURING OF METALLIC MATRIX COMPOSITES

A method for the manufacturing of metallic matrix composites through plastic working is disclosed. In the method, the plastic working charge is in the form of wires, tape or tapes or foil, which is the first component being covered with the second component or components with granulation less than 100 μm, after which they are connected by reciprocal surface contact, forming weaved bundles, and then the connected elements which form the charge material advantageously undergo initial rolling or drawing and in all cases the principal process, which is extrusion performed on a rolling mill with circumferential grooves, where between rollers a closing matrix is placed, rotating in reverse to its axis by an angle of ±20° advantageously ±12°, with a frequency up to 50 Hz, advantageously 15 Hz. 1. A method for the manufacturing of metallic matrix composites through plastic working , advantageously in a continuous extrusion process with oscillatory twisting , characterized in that the plastic working charge in the form of wires , tape or tapes or foil , which is the first component being covered with the second component or components with granulation less than 100 μm , after which they are connected by reciprocal surface contact , forming weaved bundles , and then the connected elements which form the charge material advantageously undergo initial rolling or drawing and in all cases the principal process , which is pressing performed on a rolling mill with circumferential grooves , where between rollers a closing matrix is placed , rotating in reverse to its axis by an angle of ±20° advantageously ±12° , with a frequency up to 50 Hz , advantageously 15 Hz.2. A method in accordance with characterized in that the wires covered by the second component are placed in a bundle and twisted together with a twist of (0.8-0.2) claim 1 , advantageously 0.5 rotation per 100 mm of length.3. A method in accordance with claim 1 , characterized in that the metal tape or foil covered by the ...