НОВАЯ КОНЦЕПЦИЯ ВЫСОКОТЕМПЕРАТУРНОЙ ПАЙКИ

Изобретение относится к области металлургии, а именно к высокотемпературной пайке. Механическая смесь частиц порошков для высокотемпературной пайки изделия содержит по меньшей мере один источник бора и по меньшей мере один источник кремния. Частицы имеют средний размер менее чем 250 мкм, каждая частица является источником кремния или источником бора. Механическая смесь содержит бор и кремний в массовом соотношении бора к кремнию в диапазоне от 5:100 до 1:1; кремний и бор присутствуют совместно в механической смеси в концентрации по меньшей мере 25 мас.%. По меньшей мере один источник бора и по меньшей мере один источник кремния являются бескислородными за исключением неизбежных количеств загрязняющего кислорода, составляющих менее чем 10 мас.%. Упрощается процесс пайки при сокращении количества тугоплавких присадок. 10 н. и 29 з.п. ф-лы, 6 ил., 19 табл., 13 пр.

СПОСОБ СОЕДИНЕНИЯ МЕТАЛЛИЧЕСКИХ ДЕТАЛЕЙ

Изобретение может быть использовано для соединения металлических деталей, имеющих температуру солидуса выше 1100°C. На поверхность (15) первой металлической детали (11) наносят подавляющий плавление состав (14), содержащий подавляющий плавление компонент, включающий по меньшей мере 25 мас.% бора и кремния для снижения температуры плавления первой металлической детали (11). Приводят вторую металлическую деталь (12) в контакт с подавляющим плавление составом (14) в контактной точке (16). Нагревают металлические детали (11, 12) до температуры выше 1100°C. Обеспечивают плавление поверхностного слоя первой металлической детали с образованием вместе с упомянутым компонентом металлического слоя в контакте со второй металлической деталью. Получают соединение (25) в контактной точке (16). Изобретение обеспечивает получение простым и надежным способом прочного соединения между металлическими деталями. 3 н. и 25 з.п. ф-лы, 19 ил., 14 табл., 5 пр.

Способ создания идентификационной метки на металлическом носителе

Изобретение относится к области идентификации материальных ресурсов и может быть использовано для маркировки металлических электропроводящих деталей, а именно продукции проката, деталей транспортных средств, продукции машиностроения, авиастроения, атомной промышленности и изделий оборонной отрасли. Способ получения идентификационной метки на ферромагнитной детали включает предварительный нагрев участка ферромагнитной детали до температуры плавления с помощью лазерного луча, затем в зону нагретого участка ферромагнитной детали вводят аморфообразующий элемент и охлаждают этот участок ферромагнитной детали жидким воздухом или жидким азотом. Обеспечивается получение идентификационной метки с повышенной стойкостью к воздействию агрессивной химической среды, что обуславливает повышенную эффективность предложенного способа. 1 ил.

Устройство для дозирования порошков с последующим смешиванием

Изобретение относится к сварочному производству, в частности к устройствам для смешивания с одновременным дозированием порций порошков для плазменной и газопламенной наплавки. Устройство содержит корпус в виде камеры с каналами подвода и отвода газов, в верхней части которой размещены два и более бункера с наконечниками подачи порошка. Наконечники подачи порошка выполнены в виде эжекторов, размещенных в дополнительных каналах подвода газовой смеси в камеру смешивания, причем на входах дополнительных и основного каналов для возможности дозирования установлены регуляторы подачи и датчики расхода газовой смеси. Техническим результатом изобретения является обеспечение возможности двухканальной подачи порошковой смеси в зависимости от количества подаваемой газовой смеси для правильной дозировки порошков при смешивании непосредственно при наплавлении, однородности наплавляемого слоя, хорошой схватываемости между частицами порошка и с основным металлом. 2 ил.

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 ...

СПОСОБ ИЗГОТОВЛЕНИЯ МЕТАЛЛИЧЕСКОЙ ДЕТАЛИ ДЛЯ ТУРБОРЕАКТИВНОГО ДВИГАТЕЛЯ ЛЕТАТЕЛЬНОГО АППАРАТА

... 1. Способ изготовления металлической детали (200), причем упомянутая деталь (200) содержит первую совокупность элементов (203), имеющих малую толщину, как правило, от 0,3 до 4 мм, и вторую совокупность элементов (201; 202), имеющих большую толщину, как правило, больше 4 мм; причем металлическая деталь является деталью турбореактивного двигателя летательного аппарата; отличающийся тем, что он содержит различные этапы, заключающиеся в том, что:образуют периферическую часть (301) элементов (201; 202) второй совокупности элементов путем селективного плавления металлического порошка посредством сканирования поверхности порошкового слоя лазерным пучком или электронным пучком;используют периферическую часть (301) элементов (201; 202) второй совокупности элементов в качестве литейной формы, осуществляя операцию по заполнению жидким металлом внутренней зоны (302), ограниченной упомянутой периферической частью (301);охлаждают металлическую деталь (200) для придания твердости внутренней зоне (302) ...

Способ формирования антикоррозионного покрытия на изделиях из низкоуглеродистой стали

Изобретение относится к электронно-лучевой наплавке и может применяться для повышения коррозионной стойкости стали, используемой для изготовления изделий в нефтегазохимии и криогенной технике, работающих в условиях воздействия агрессивных сред, в частности для производства конденсаторов, теплообменников, варочных котлов, реакторов для рафинирования, отгонки сырой нефти и бензина, транспортировки и хранения жидких газов. Способ формирования антикоррозионного покрытия из нержавеющей стали на изделии из низкоуглеродистой стали включает размещение на поверхности обрабатываемого изделия смеси порошков флюса и порошка, содержащего легирующие элементы в соотношении, обеспечивающем заданный состав покрытия из нержавеющей стали, или пластины, предварительно изготовленной из сплава, содержащего легирующие элементы в соотношении, достаточном для обеспечения после наплавки покрытия, соответствующего требуемой марке нержавеющей стали, и проведение электронно-лучевой наплавки нанесенной смеси или пластины ...

СПОСОБ ПРИМЕНЕНИЯ ТИТАНСОДЕРЖАЩИХ ПОБОЧНЫХ ПРОДУКТОВ

... 1. Способ получения материала покрытия для сварочных электродов или получения сварочного порошка, добавки для сварочного порошка или добавки для сварочного флюса, которые могут быть использованы для электросварки, в частности - для порошковой сварки, сварки с применением порошкового присадочного материала или сварки под флюсом, отличающийся тем, что к материалу покрытия, и/или к сварочному порошку, к добавке для сварочного порошка, и/или к добавке для сварочного флюса добавляют и/или примешивают титансодержащий, в частности содержащий диоксид титана, материал, образующийся в процессе получения диоксида титана, в частности получения пигмента на основе диоксида титана, на одном из этапов или на одной из стадий производства в качестве побочного продукта или отхода, и обрабатывают смесь с получением материала покрытия, и/или сварочного порошка, и/или добавки для сварочного порошка, и/или добавки для сварочного флюса.2. Способ применения титансодержащего побочного продукта или отхода, образующегося ...

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

Coating process for producing adhering metal layers made of a material based on a nickel-based alloy comprises applying material in powder form onto a component and fusing using laser

Coating process for producing adhering metal layers made of a material based on a nickel-based alloy comprises applying material in powder form (5) onto a component (1) and fusing using laser powder welding to from a metallurgical bond with the component.

Schaltstück für einen Vakuumschalter

VERFAHREN ZUR HERSTELLUNG EINES SCHNEIDWERKZEUGES

Verfahren zur Herstellung eines metallischen Halbzeugs oder Fertigteils als Werkstoffverbund mit funktionalisierter Oberfläche und derartiges Halbzeug oder Fertigteil

Die Erfindung betrifft Verfahren zur Herstellung eines metallischen Halbzeugs oder Fertigteils als Werkstoffverbund mit funktionalisierter Oberfläche und derartige Halbzeuge oder Fertigteile.Die Verfahren und die derartigen Halbzeuge oder Fertigteile zeichnen sich insbesondere dadurch aus, dass eine mit Partikeln versehene Oberfläche oder Schicht herstellbar und als Halbzeug oder Fertigteil bereitstellbar ist.Dazu erfolgt ein Beschichten eines metallischen Substrats als Bestandteil des Halbzeugs oder Fertigteils mit einer metallischen Schicht, ein Aufbringen von Partikeln auf die metallische Schicht und ein Umformen des Substrats mit der metallischen Schicht und den Partikeln bei einer Temperatur kleiner der Schmelztemperaturen des metallischen Substrats, der metallischen Schicht und der Partikel.Ein Halbzeug oder Fertigteil ist dazu ein Werkstoffverbund mit einer abgeschiedenen metallischen Schicht und mit durch Aufbringen und Umformen in die Oberfläche der Schicht und/oder in die Schicht ...

Verfahren zum schichtweisen Aufbau eines Bauteils

Die vorliegende Erfindung betrifft ein Verfahren zum schichtweisen Aufbauen eines Bauteils (2), bei welchem Verfahren ein pulverförmiger Werkstoff (4) in Form von Schichten (5) aufgebracht wird, und je Schicht (5) mittels einer Strahlquelle (6) bereichsweise bestrahlt und damit verfestigt wird, dadurch gekennzeichnet, dass zusätzlich ein Schweißzusatzwerkstoff (16) in geformten Zustand vorgehalten und im Zuge des schichtweisen Aufbauens zumindest zeitweilig durch Auftragsschweißen aufgeschweißt wird.

Improvements in and relating to the manufacture of electrode systems of unsymmetrical conductivity

... 516,137. Coating metals ; asymmetricallyconducting resistances ; light-sensitive cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 21, 1938, No. 18434. Convention date, June 24, 1937. [Class 82 (ii)] [Also in Groups XVI, XXXVI and XL] In the manufacture of an electrode system having unsymmetrical conductivity, a continuous pulverulent layer is applied to a metal carrier by first applying to the carrier a thin layer of a metal, having a lower melting point than the carrier metal and the pulverulent material, then applying the pulverulent material, and heating the aggregate until only the metal intermediate layer is caused to melt. The semi-conductive layer of the electrode system may be formed by, or applied as a coating to, the pulverulent layer, which may comprise a metal powder or carbon. For rectifiers, high frequency detectors or photoelectric cells with selenium electrodes, an aluminium carrier may be roughened, as by hydrochloric acid, a cadmium film applied thereto ...

Casting with a halogen containing compound provided on the mould surface

A method of casting a metallic component 10, such as an aluminium engine block, in a mould cavity wherein a halogen containing compound such as dipotassium fluorotitanate or a potassium chloride - magnesium chloride eutectic is applied as a coating 14 to at least a part of the mould cavity. After removing the solidified metallic component 10 from the mould cavity it may be hot isostatically pressed to remove internal porosity.

Improvement in method of making composite metallic articles

... 540,565. Casting composite articles. HAYNES STELLITE CO. Feb. 19, 1940, No. 3086. Convention date, March 17, 1939. [Classes 83 (i) and 83 (ii)] A valve, valve seat, shaft or other article comprising a body of steel or other metal and a surface portion of a wear- or oxidation-resistant metal, such as cobalt-chromium-tungsten alloy, bronze or high chromium steel, is made by providing shaped solid means for confining molten metal on or against the surface of the body to be coated, placing solid resistant metal within the confining means and heating the whole in a furnace long enough to melt and bond the resistant metal to the body. When using bronze or certain other alloys, the constituents may be used instead of the prepared alloy. The confining means may comprise an integral part 15, Fig. 11, of the blank 10, a metal part 39, Fig. 12, welded on at 40, or a refractory part 17, Fig. 3, or 48, Fig. 16, these confining means being removed subsequently by grinding, drilling, machining &c. during ...

Wear-resistant coating on a component,and a method of producing it

The invention concerns a wear-resistant coating on a component exposed to high wear loads. The coating is made up of a mixture of at least one metallic material in powder form and an oxide-dissolving non-metallic fluxing agent, also in powder form, this mixture being converted by the addition of a non-corrosive, stable, resin-like binder into a form which can be spread or laid on the component and then fused on to the component.

Multilayer material

Welding apparatus

Coating composition, method of coating, coated product, system and use

A piston having at least one piston ring groove

A piston made of an aluminum alloy has at least one piston ring groove defined by two side walls and a bottom wall. At least one preferably both side walls of the piston ring groove(s) are formed or defined by a zone, which has been hardened by an energy beam remelting process. The remelted zone may comprise alloy elements other than or more concentrated than the alloy elements comprised in the other portion of the piston, said additional alloy elements being introduced into said zone in the course of the remelting process. Each piston ring groove side wall may be formed by an individual remelted zone, or both sidewalls of a piston ring groove may be formed by the same remelted zone. The additional alloy elements may be applied in the form of a layer or a wire to the location of the surface of the piston, where subsequently a remelted zone is formed by the energy beam. The energy beam is preferably an electron beam, however, ion and laser beams may also be used.

Fusing cladding material to a substrate

In fusing a cladding material, in the form of a powder as example, to a substrate using a laser which tracks across the substrate producing a fusion zone into which the powder is fed, ultrasonic vibratory energy is applied to the substrate. The stresses formed in the fusion zone and inclusion of pores are thereby reduced significantly.

An improved method of and means for coating the surface of solid bodies

... 552,388. Coating with metals. HATFIELD, H: S. July 31, 1941, No. 9722. Drawings to Specification. [Class 82 (ii)] [Also in Group XI] The surface of a body, e.g. of iron or steel, is coated with a thin layer of another material, e.g. tungsten or other hard metal or a carbide by subjecting the surface for a short time to heating caused by the impact of a focussed beam of high-speed electric particles, the coating substance being applied to the surface during and/or before the heating. The added substance may be applied as a powder coating, or may be fed mechanically into the beam. Metal may be coated with tungsten or alloyed with it, and carbon powder applied to form the carbide. A " hot cathode "or" cold cathode "apparatus may be employed. In the former, the filament is enclosed in a metal bell having in its centre a small perforated vessel containing tungsten carbide which is fed into the beam by vibration. The apparatus may be provided with timing devices to limit the duration of the heating ...

A method of forming a component on a substrate

Method of manufacturing a cemented carbide material

Method for joining metal parts

A novel coating concept

A braze alloy layered product

Method for joining metal parts

A novel brazing concept

A novel brazing concept

A braze alloy layered product

A novel coating concept

A novel brazing concept

A novel coating concept

A braze alloy layered product

A novel brazing concept

Method for joining metal parts

A novel brazing concept

A novel brazing concept

PROCEDURE FOR MAKING AUFSCHWEISSSTABEN OF POWDER COMPOSITE MATERIAL WITH INCREASED DENSITY

PROCEDURE FOR COATING METAL TUBES WITH ALLOYS CORROSION RESISTANT

VERFAHREN ZUM HERSTELLEN EINER VERSCHLEISSARMEN SCHUTZSCHICHT AUF EINEM BAUTEIL

DEVICE FOR THE RECLOADING OF A CONCAVE SURFACE OF A WORKPIECE BY BRINGING IN A MATERIALES AND BY BRINGING IN OF LASER ENERGY

COATING FORERUNNER MATERIALS, TURBOMACHINE COMPONENTS AND PROCEDURES FOR FORMING THE TURBOMACHINE COMPONENTS

VERFAHREN ZUR HERSTELLUNG EINER KOKILLE AUS KUPFERWERKSTOFFEN

Corrugated body with wear-resistant asymmetrical partial areas and process for its production

The invention relates to a corrugated body 1 with an asymmetrical cross-sectional shape at least in partial areas over the longitudinal extent, based on the axis, with surface layers which have an increased wear resistance in the working and bearing areas, and to a process for its production. According to the invention, it is provided that the corrugated body 1 is formed as a deep-drawn hollow metallic body and, at least in the working and bearing areas 22, bears in each case one wear-resistant layer which is metallically joined to the corrugated body 1. The process according to the invention is essentially characterized in that a metallic tube 2 is deep-drawn in a mould 3 to form a near-net-shape hollow corrugated body 1 by means of pressurized fluid, after which the working and bearing areas 22 are partially melted briefly and locally by means of an energy beam 41, additional materials 42 are introduced into the molten phase and the alloyed molten material which forms as a result is allowed ...

PROCEDURE FOR THE PRODUCTION OF WEAR AND CORROSION PROOF SURFACES ON PLASTIFIZIERSCHNECKEN FOR INJECTION MOULDING MACHINES

PROCEDURE FOR THE PRODUCTION OF A WEAR-REDUCING LAYER.

PROCEDURE FOR THE PRODUCTION OF WEAR-STEADY HARD MATERIAL LAYERS ON METALLIC DOCUMENTS.

PROCEDURE FOR THE PRODUCTION OF A COATING ON A FIREPROOF CONSTRUCTION UNIT

LASER-PLATED POT CASTORS AND CANS FOR GALVANIZING BATHS

LASER-PRODUCED POROUS SURFACE

PROCEDURE FOR MANUFACTURING GUMPTION BODIES WITH A GUMPTION LAYER

SELECTIVE LASER SINTERING APPARATUS WITH RADIANT HEATING

CORROSION-RESISTANT STRUCTURE OF METAL MATERIAL AND METHOD FOR SURFACE TREATMENT OF METAL MATERIAL

A novel coating concept

The present invention relates to composition comprising a blend of at least one boron source and at least one silicon source, and the composition further comprises particles selected from particles having wear resistance properties, particles having surface enhancing properties, particles having catalytic properties or combinations thereof, wherein the blend comprises boron and silicon in a weight ratio boron to silicon within a range from about 3:100 wt:wt to about 100:3 wt:wt, wherein silicon and boron are present in the blend in at least 25 wt%, and wherein the at least one boron source and the at least one silicon source are oxygen free except for inevitable amounts of contaminating oxygen, and wherein the blend is a mechanical blend of particles in and the particles have an average particle size less than 250 µm. The present invention relates further to a method for providing a coated product and a coated product obtained by the method.

Utility knife blade

A utility knife blade includes a portion made of a first material; and an elongated portion made of a second material, the second material being harder than the first material and coated on the first material by melting a powder of the second material on the first material, the elongated portion forming the tip of the blade, wherein the second material includes tungsten carbide particles embedded in a soft binder, and wherein the size of at least 90% of the tungsten carbide particles is lower than about 5 micrometers.

Utility knife blade

A utility knife blade includes a portion made of a first material; and an elongated portion made of a second material, the second material being harder than the first material and coated on the first material by melting a powder of the second material on the first material, the elongated portion forming the tip of the blade, wherein the second material includes tungsten carbide particles embedded in a soft binder, and wherein the size of at least 90% of the tungsten carbide particles is lower than about 5 micrometers.

Method for joining metal parts

A method for joining a first metal part (11) with a second metal part (12), the metal parts (11,12) having a solidus temperature above 1100 QC. The method comprises: applying a melting depressant composition (14) on a surface (15) of the first metal part (11), the melting depressant composition (14) comprising a melting depressant component that comprises at least 25 wt% boron and silicon for decreasing a melting temperature of the first metal part (11 ); bringing (202) the second metal part (12) into contact with the melting depressant composition (14) at a contact point (16) on said surface (15); heating the first and second metal parts (11,12) to a temperature above 1 100 QC; and allowing a melted metal layer (210) of the first metal component (11) to solidify, such that a joint (25) is obtained at the contact point (16). The melting depressant composition and related products are also described.

SURFACE-ALLOYED CYLINDRICAL, PARTIALLY CYLINDRICAL OR HOLLOW CYLINDRICAL COMPONENT

A surface-alloyed cylindrical, partially cylindrical or hollow cylindrical component consists of an aluminium matrix casting alloy (1) and a precipitation area (3) extending as far as the surface of the component (3) and consisting of an aluminium base alloy with precipitated hard phases. A eutectic area (2) (hereafter: "transition area") which is supersaturated by primary hard phases is present between the matrix (1) and the precipitation area (3) and the increase in hardness from the matrix (1) to the component surface (3) is gradual.

METHOD OF PRODUCING A CUTTING BLADE AND CUTTING BLADE THUS PRODUCED

Procédé de fabrication d'une lame (1) pour outil tranchant, notamment pour un couteau, une paire de ciseaux, une scie, un appareil ménager ou électroménager, ou encore une machine industrielle, cette lame (1) étant réalisée en un acier ou un alliage d'aciers inoxydables et comprenant au moins une arête tranchante s'étendant sur au moins une partie de sa périphérie, caractérisé en ce qu'il comprend les étapes suivantes: a) réaliser un corps (2) de lame possédant au moins un bord libre prévu au voisinage de l'emplacement de la ou de chaque arête tranchante (3), b) projeter sur au moins un bord libre un matériau d'appoint sous forme pulvérulente d'une dureté supérieure à la dureté du corps de la lame, c) soumettre la poudre de matériau d'appoint à un faisceau laser de manière à former un cordon ou une bande sur au moins une partie dudit bord libre, d) former l'arête tranchante dans le cordon ou la bande de matériaud'appoint. Les outils tranchant équipés d'une lame ainsi réalisée ont une grande ...

SYSTEM AND METHOD FOR COMPONENT MATERIAL ADDITION

A system is disclosed for depositing mate-rial on a component. The system includes a deposition de-vice operatively coupled to a fiber optic Nd: YAG laser. The deposition device includes a focusing prism that focuses the Nd:YAG laser at a focal area on a bladed disk, where the fo-cal area on the bladed disk is between two blades of the disk. The system further includes an imaging means that views the focal area of the component. The imaging means and the fiber optic Nd:YAG laser each are positioned in a sub-stantially similar optical relationship to the focal area on the bladed disk. The system further includes an additive material delivery means that delivers additive material to the compo-nent at the focal area on the component.

SYSTEM AND METHOD FOR COMPONENT MATERIAL ADDITION

A system is disclosed for depositing mate-rial on a component. The system includes a deposition de-vice operatively coupled to a fiber optic Nd: YAG laser. The deposition device includes a focusing prism that focuses the Nd:YAG laser at a focal area on a bladed disk, where the fo-cal area on the bladed disk is between two blades of the disk. The system further includes an imaging means that views the focal area of the component. The imaging means and the fiber optic Nd:YAG laser each are positioned in a sub-stantially similar optical relationship to the focal area on the bladed disk. The system further includes an additive material delivery means that delivers additive material to the compo-nent at the focal area on the component.

METHOD FOR PRODUCING AN ABRADABLE COATING

Disclosed is a method for producing an abradable coating for a part of a turbo-machine. Said method comprises the following steps: a) a powdery mater ial is pretreated; b) a processable preliminary product is produced which is to be applied to a part that is to be coated; c) the preliminary product is applied to the part that is to be coated; d) a synthetic binder contained i n the preliminary product is burned off; e) the part is sintered; f) the par t is finished. Said improved method for producing an abradable coating for a turbo-machine eliminates the drawbacks of the solutions known from prior ar t. In particular, said method is inexpensive, can be easily combined with ot her production process steps, e.g. thermal treatments that have to be carrie d out anyway, and is also suitable as a method for repairs.

ABRASION RESISTANT COMPOSITION

A surface covering composition of abrasion resistant character adapted for disposition in overlying bonded relation to a metal substrate. The surface covering composition includes metal carbide particles within a metal matrix at a packing factor of not less than about 0.6. Not less than about 40 percent by weight of the metal carbide particles are characterized by an effective diameter in the range of +14 - 32 mesh prior to introduction to the metal matrix. Not less than about 3 percent by weight of the metal carbide particles are characterized by an effective diameter of +60 mesh prior to introduction to the metal matrix.

SYSTEM AND METHOD FOR DEPOSITING MATERIAL IN A SUBSTRATE

One embodiment of the present invention is a unique method for depositing materials in a substrate. Another embodiment is a unique system for depositing materials in a substrate. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for depositing materials within a substrate. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

WEAR-PROOFING A MOLD FOR CONTINUOUS CASTING

BIT LEG AND CONE HARDFACING FOR EARTH-BORING BIT

An earth-boring bit has a bit body, and a bit leg depending from the bit body with a circumferentially extending outer surface, a leading side and a trailing side. A cone is rotatably mounted on a cantilevered bearing shaft depending inwardly from the bit leg. A first layer of a hardfacing composition of carbide particles dispersed in a nickel-based matrix is formed on the bit leg. A second layer of a hardfacing composition of carbide particles dispersed in an iron-based matrix that is formed on the cone. The first layer of hardfacing is applied by conveying carbide particles in a nickel-based matrix through a pulsed plasma transferred arc process. The second layer of hardfacing is applied with a torch and a hardfacing tube comprising carbide particles held within an iron-based tube.

LASER-PRODUCED POROUS SURFACE

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam.

SURFACE MODIFICATION OF STAINLESS STEELS

A process involves the continuous surface treatment of stainless steel coils with aqueous suspensions of rare earth oxide nano or micro particles or aqueous rare earth nitrate solutions of nano or micro particles. The surface treatment promotes a more uniform color to the subsequently developed oxide formed during anneal-type heat treatment. Tt also improves corrosion resistance of the processed stainless steel material. Materials treated in this manner are suitable for a variety of applications in the building systems, automotive and appliance markets.

LASER-PRODUCED POROUS SURFACE

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam.

LAYER STRUCTURE AND USE THEREOF TO FORM A CERAMIC LAYER STRUCTURE BETWEEN AN INTERCONNECT AND A CATHODE OF A HIGH-TEMPERATURE FUEL CELL

The invention relates to a layer structure that is formed between an interconnect and a cathode of a high-temperature fuel cell and that can be used to form a ceramic layer structure between an interconnect and a cathode. The interconnect is made of a metal alloy containing chromium. The aim of the invention is to provide a layer structure between an interconnect and a cathode of a high-temperature fuel cell, by means of which good protective function (against corrosion and against chromium evaporation), high electrical conductivity, and good thermal expansion behavior matched to the materials of an interconnect and of a cathode can be achieved. The layer structure is formed in the green state by a powdery spinel and at least one metal oxide from the group comprising CuO, NiO, CoOx, and MnOx as a sintering additive, and at least one powdery perovskite. Chromium is not contained in any of said chemical compounds. The fraction of contained spinel having the metal oxides as a sintering additive ...

Verfahren zur Herstellung eines Sperrschichtelektrodensystems und gemäss diesem Verfahren hergestelltes Sperrschichtelektrodensystem.

Procédé pour former une couche dure sur une surface métallique de base

Verfahren und vorrichtung zum Innenplattieren von metallischen Hohlkörpern, insbesondere von Rohren, und Anwendung des Verfahrens zum Herstellen von Gewinden

PROCEDURE FOR THE PRODUCTION OF INTERIOR COATINGS OF PIPES.

PROCEDURE FOR THE PRODUCTION OF A MOLD FOR STEALING RANK CASTING PLANTS.

Verschleissfeste layer on a construction unit as well as procedure for their production.

System and method for the deposition of materials in a substrate.

La présente invention a pour objets un procédé et un dispositif de dépôt de matériaux dans un substrat. Le procédé est particulier en ce que lon dirige un faisceau énergétique vers un premier matériau pour former un flaque (26) de masse fondue tournée vers le bas et que lon dirige vers cette flaque un flux de particules (20) dun second matériau pouvant migrer vers le haut dans la masse fondue de premier matériau. Un tel procédé peut être utilisé dans la fabrication de pales de turbine à gaz, par exemple.

Electrical discharge surface treating method involves supplying working power to face of a punch

Electrical discharge is generated between the end face (4) of a punch (1) and an electrical-discharge surface-treating electrode (14) by drive-controlling a Z-axis drive unit (21) by a control unit (23), and by supplying a working power to between the electrode (14) and the punch to thereby form a hard coating (24) on the end face of the punch and an engraved portion (14a) of a specified depth in the electrode. Next, a hard coating (25) is formed on the side face (5) of the punch by drive-controlling an X-axis drive unit (19) and a Y-axis drive unit (20) by the control unit, and by supplying a working power to between the electrode (14) and the punch while swinging the punch and the electrode relatively within a horizontal plane. Even when the punch has a complicated shape, it is possible to surface-treat by electrical discharging an end-face cutting edge (4a) and a side-face cutting edge (5a) of the punch.

Vefahren and device for treatment of electrical discharge machinings.

Metal substrates with laser-induced MMC coating.

System and method for the deposition of materials in a substrate.

La présente invention a pour objet un procédé et un système (10) de dépôt de matériaux dans un substrat (12). Le procédé est particulier en ce que l’on dirige un faisceau énergétique (16) vers un premier matériau pour former une flaque (26) de masse fondue tournée vers le bas et que l’on dirige vers cette flaque un flux de particules (20) d’un second matériau pouvant migrer vers le haut dans la masse fondue du premier matériau. Un tel procédé peut être utilisé dans la fabrication de pales de turbine à gaz, par exemple.

System and method for the deposition of materials in a substrate.

La présente invention a pour objet un procédé et un système (10) de dépôt de matériaux dans un substrat (12). Le procédé est particulier en ce que l’on dirige un faisceau énergétique (16) vers un premier matériau pour former une flaque (26) de masse fondue tournée vers le bas et que l’on dirige vers cette flaque un flux de particules (20) d’un second matériau pouvant migrer vers le haut dans la masse fondue du premier matériau. Un tel procédé peut être utilisé dans la fabrication de pales de turbine à gaz, par exemple.

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.

СПОСОБ НАНЕСЕНИЯ ОТНОСИТЕЛЬНО ТОЛСТОГО ЗАЩИТНОГО ПОКРЫТИЯ НА ЛИСТОВУЮ МЕТАЛЛИЧЕСКУЮ ПОДЛОЖКУ

Листовая металлическая подложка снабжена приподнятым барьером, который окружает участок, на который должно быть нанесено твердосплавное покрытие. Суспензия, содержащая высоколегированный порошок и поливиниловый спирт в качестве связующего, размещается в полости, образованной барьером и пластиной. Барьер имеет высоту, которая превышает требуемую толщину готового покрытия, которая больше 2,0 мм на величину, равную предполагаемой усадке во время этапов отверждения и плавления.

СПЕЧЕННАЯ МЕХАНИЧЕСКАЯ ДЕТАЛЬ С ИЗНОСОСТОЙКОЙ ПОВЕРХНОСТЬЮ И СПОСОБ ЕЁ ИЗГОТОВЛЕНИЯ

Настоящее изобретение относится к детали, предназначенной для работы в механических узлах, с износостойкой поверхностью, отличающейся тем, что она включает спеченное металлическое тело, полученное из металлических порошков, и металлокерамическое покрытие, нанесенное с помощью лазера. Это покрытие имеет определенную толщину, определенный участок, которой металлургически связан с металлическим телом. Лазерное нанесение расплавляет спеченный участок на поверхности под воздействием лазерного луча. Поверхность спеченной детали, подлежащей покрытию, следовательно, расплавляется на толщину от 10 мк до 1 мм, что вызывает закрывание пор на поверхности, что характерно для спеченных деталей, таким образом увеличивая их сопротивление ударным нагрузкам. Более того, небольшая поверхность, подвергаемая в данный момент воздействию лазером, вызывает самозакалку обработанной части, вслед за смещением луча, за счет эффекта оттока теплоты в окружающий металлический объем. Получаемое в результате покрытие имеет ...

СПОСОБ НАНЕСЕНИЯ ОТНОСИТЕЛЬНО ТОЛСТОГО ЗАЩИТНОГО ПОКРЫТИЯ НА ЛИСТОВУЮ МЕТАЛЛИЧЕСКУЮ ПОДЛОЖКУ

Листовая металлическая подложка снабжена приподнятым барьером, который окружает участок, на который должно быть нанесено твердосплавное покрытие. Суспензия, содержащая высоколегированный порошок и поливиниловый спирт в качестве связующего, размещается в полости, образованной барьером и пластиной. Барьер имеет высоту, которая превышает требуемую толщину готового покрытия, которая больше 2,0 мм на величину, равную предполагаемой усадке во время этапов отверждения и плавления.

Laser inner fusion covering equipment

Piston ring for internal combustion engine

Process improved for the manufacture of coatings and products thus obtained

ARTICLE INCLUDING/UNDERSTANDING a COATING CERAMIC AND MANUFACTORING PROCESS Of SUCH an ARTICLE IMPLEMENTING a LASER.

LASER RELOADED CONCAVE PART, METHOD AND DEVICE FOR MAKING SAME

Dispositif de rechargement d'une face concave (2) d'une pièce tubulaire (1) par apport de matière de rechargement et d'énergie par laser, comprenant une source laser pour générer un faisceau laser (9), des moyens d'amenée de matière de rechargement (5) à base de grains de matière dure réfractaire et d'alliage métallique, pour amener la matière de rechargement au voisinage d'une zone de rechargement (6) sur la face concave (2) de la pièce tubulaire (1) à recharger, des moyens d'amenée de faisceau laser (7) et des moyens de direction (8) pour diriger le faisceau laser (9) dans la zone de rechargement (6). La source laser est un laser à diodes (4), et les moyens d'amenée de faisceau laser (7) conduisent celui-ci sur une longueur de pénétration (L) le long d'une direction de pénétration, puis les moyens de direction (8) dévient le faisceau laser (9) selon une direction radiale (II-II) à l'écart de la direction de pénétration, de sorte que la source laser peut se trouver à l'extérieur de la ...

MANUFACTURE OF FLUID-COOLED GAS TURBINE BUCKETS

PROCESS FOR COATING METALS USING RESISTANCE HEATING OF PREFORMED LAYER

Coated metal article

L'invention décrit un article revêtu qui est constitué par un substrat en alliage métallique, à base de nickel, de chrome, de cobalt ou de fer, et par un revêtement qui constitue une barrière pour l'oxygène afin d'isoler la surface du métal contre l'attaque par l'oxygène à des températures qui peuvent s'élever jusqu'à 1200degré C. Le revêtement comprend une vitrocéramique sélectionnée parmi des systèmes de silicate de baryum et de silicate de strontium, caractérisés par la présence d'additifs qui permettent la formation d'un revêtement de verre continu, présentant un bon écoulement, avant le durcissement du revêtement par cristallisation. Ces additifs comprennent les oxydes réfractaires Al2 O3 , ZrO2 et Y2 O3 , les oxydes de métaux de transition MnO, CoO, NiO et FeO, et MgO.

PHOTOIONIC MICROHEAD DEVICE FOR PROCESSING A SURFACE OF A MATERIAL BY POWDER DEPOSITION

L'invention concerne un dispositif de traitement de la surface d'un matériau par dépôt d'une matière sous forme de poudre comportant: - au moins une fibre optique (2); - une source de lumière (4) pouvant engendrer une lumière pulsée; - des moyens d'injection (6) de la lumière dans une première extrémité de la fibre optique; - une tête photo-ionique miniaturisée (8) fixée sur une seconde extrémité de la fibre optique et assurant la diffusion de la lumière propagée par la fibre optique vers la matière à déposer; et - un réservoir de poudre (28a) et un réservoir de gaz (28b) concentriques, situés autour de la fibre optique et débouchant dans une chambre de dispersion (26); et - un bague de confinement (16) comprenant deux buses disposées entre la tête photo-ionique et le matériau à traiter pour assurer l'ionisation de la poudre dispersée. Application au domaine dentaire.

Electroconductive bonding material, method for bonding conductor, and method for manufacturing semiconductor device

An electro-conductive bonding material includes: metal components of a high-melting-point metal particle that have a first melting point or higher; a middle-melting-point metal particle that has a second melting point which is first temperature or higher, and second temperature or lower, the second temperature is lower than the first melting point and higher than the first temperature; and a low-melting-point metal particle that has a third melting point or lower, the third melting point is lower than the first temperature.

System and method for component material addition

A system is disclosed for depositing material on a component. The system includes a deposition device operatively coupled to a fiber optic Nd:YAG laser. The deposition device includes a focusing prism that focuses the Nd:YAG laser at a focal area on a bladed disk, where the focal area on the bladed disk is between two blades of the disk. The system further includes an imaging means that views the focal area of the component. The imaging means and the fiber optic Nd:YAG laser each are positioned in a substantially similar optical relationship to the focal area on the bladed disk. The system further includes an additive material delivery means that delivers additive material to the component at the focal area on the component.

LASER MICROCLADDING USING POWDERED FLUX AND METAL

A laser microcladding process utilizing powdered flux material (). A jet () of propellant gas containing powdered alloy material () and the powdered flux material are directed toward a substrate (). The powdered materials are melted by a laser beam () to form a weld pool () which separates into a layer of slag () covering a layer of clad alloy material (). The flux material deoxidizes the weld pool and protects the layer of clad alloy material as it cools, thereby allowing the propellant gas to be nitrogen or air rather than an inert gas. In one embodiment, the substrate and alloy materials are superalloys with compositions beyond the traditional zone of weldability. 1. A method comprising:using a propellant gas to direct powdered alloy material and powdered flux material toward a substrate;melting the powdered alloy material and powdered flux material with an energy beam to form a weld pool on the substrate; andallowing the weld pool to solidify and cool on the substrate as a layer of clad alloy material covered by a layer of slag.2. The method of claim 1 , further comprising selecting the propellant gas to be air or nitrogen.3. The method of claim 1 , further comprising selecting the powdered alloy material and the powdered flux material to have overlapping mesh size ranges.4. The method of claim 1 , further comprising melting the powdered alloy material and powdered flux material with a laser beam.5. The method of claim 4 , further comprising melting the powdered alloy material and powdered flux material with a diode laser beam.6. The method of claim 1 , further comprising:melting the powdered alloy material and powdered flux material with a laser beam having a beam diameter D; andrastering the laser beam by repeated changes in direction such that an amount of overlap O of the beam diameter at its locations of change of direction is between 25-90% of D.7. The method of claim 1 , further comprising forming the powdered alloy material and powdered flux material as ...

Method of manufacturing of cutting knives using direct metal deposition

Direct metal deposition (DMD) is used to fabricate knife edges with extended service life. A metal alloy powder is deposited along a blank and melted with a laser beam so that the powder solidifies into a strip of material having a hardness and/or wear resistance greater than that of the starting material. The piece is then finished to produce a sharp edge in the solidified material. The powder may be melted while it is being deposited, or it may be melted after being deposited. A slot or groove may be formed in the blank with the metal alloy powder being deposited into the slot or groove. A hardened steel alloy powder is deposited onto a mild steel blank. For example, a tool steel or vanadium steel powder may be deposited onto a 1018 steel blank. An invention line-beam nozzle may be used for deposition and/or powder melting.

METHOD FOR TREATING Cu THIN SHEET

A method for treating a Cu thin sheet is provided. The method comprises the steps of: supplying a slurry in which a diffusion bonding aid (DBA), such as Ni powder, and a reinforcing material (RM), such as a carbide base metal compound, are dispersed in a solvent to a predetermined portion on a Cu or Cu base alloy thin sheet, drying the supplied slurry, and applying a laser to induce melting, solidification, and fixation, so as to form a buildup layer. In the method, the weight ratio of DBA to RM is specified to be 80:20 to 50:50, and the median diameters D 50 of both DBA and RM employed fall within 0.1 to 100 μm, the median diameter D 50 of DBA is larger than the median diameter D 50 of RM, and both the distribution ratio D 90 /D 10 of DBA and the distribution ratio D 90 /D 10 of RM are 4.0 or less.

METHODS, WIRES, AND APPARATUS FOR SLICING HARD MATERIALS

Methods, wires, and apparatus for use in cutting (e.g., slicing) hard, brittle materials is provided. The wire can be a super-abrasive wire that includes a wire core and super-abrasive particles bonded to the wire core via a metal bonding layer. This wire, or another type of wire, can be used to slice workpieces useful for producing wafers. The workpieces can be aligned within a holder to produce wafers using the device and methods presently provided. The holder rotates about its central axis, which translates to workpieces moving in orbit around this axis. A single abrasive wire, or multiple turns of wire stretched tightly between wire guides, is then contacted with the rotating holder to slice the workpieces. 120.-. (canceled)21. An apparatus for fabricating a composite super-abrasive wire , the apparatus comprising:a wire-core source for providing wire core;one or more liquid flux chambers each (i) containing a liquid flux and (ii) positioned to receive the wire core for at least one of (a) etching the wire core with the liquid flux or (b) coating the wire core with the liquid flux;a matrix powder chamber (i) containing an abrasive powder mixture for coating of the wire core therewith and (ii) positioned to receive the wire core after reception thereof by the one or more liquid flux chambers; anda heat source for heating the wire core coated with the abrasive powder mixture, thereby forming the composite super-abrasive wire.22. The apparatus of claim 21 , wherein the liquid flux contained within at least one said liquid flux chamber comprises an acid.23. The apparatus of claim 21 , wherein the liquid flux contained within at least one said liquid flux chamber comprises at least one of zinc chloride claim 21 , hydrochloric acid claim 21 , or ammonium chloride.24. The apparatus of claim 21 , wherein the liquid flux contained within at least one said liquid flux chamber comprises at least one of triethanolarnine hydrochloride claim 21 , hydrochloric acid claim 21 , ...

A CHEMICAL METHOD TO DECREASE OXIDE SCALE GENERATION IN HOT ROLLING

The present invention is drawn to a protective coating composition for a metallic substrate and a ceramic film coating layer formed thereon. 1. A protective coating for a metallic substrate to reduce oxide scale formation during hot working , the protective coating comprising at least one high melting point inorganic material presented in an amount raging from about 30.0 wt. % to about 90.0 wt. % , and at least one silicate presented in an amount ranging from about 0.5 wt. % to about 30.0 wt. % , wherein the wt. % is measured by the total weight of the protective coating composition.2. The protective coating of claim 1 , wherein the at least one high melting point inorganic material is selected from the group consisting of a carbide claim 1 , a nitride claim 1 , a boride claim 1 , a metal oxide claim 1 , composite materials thereof and combinations thereof.3. The protective coating of claim 1 , wherein the at least one high melting point inorganic material is selected from the group consisting of calcinized aluminum oxide claim 1 , zirconium silicate (ZrO.SiO claim 1 , Zircopax™) claim 1 , a mixture of zirconium silicate and silica (Zircopax Plus™) claim 1 , zirconium oxide (ZrO) claim 1 , silicon carbide claim 1 , and combinations thereof.4. The protective coating of claim 3 , wherein the at least one high melting point inorganic material is a combination of zirconium silicate claim 3 , silica and silicon carbide claim 3 , or a combination of calcined aluminum oxide and silicon carbide.5. The protective coating composition of claim 1 , wherein the at least one high melting point inorganic material has a median particle size ranging from about 5 μm to about 44 μm.6. The protective coating composition of claim 1 , wherein the at least one high melting point inorganic material is present in an amount range selected from: about 30.0 wt. % to about 40.0 wt. % claim 1 , about 30.0 wt. % to about 50.0 wt. % claim 1 , about 30.0 wt. % to about 60.0 wt. % claim 1 , about 30 ...

SYSTEMS AND METHODS FOR FORMING A LAYER ONTO A SURFACE OF A SOLID SUBSTRATE AND PRODUCTS FORMED THEREBY

A method for forming a vehicular brake rotor involving loading a shaped metal substrate with a mixture of metal alloying components and ceramic particles in a dieheating the contents of the die while applying pressure to melt at least one of the metal components of the alloying mixture whereby to densify the contents of the die and form a ceramic particle-containing metal matrix composite coating on the metallic substrate; and cooling the resulting coated product. 1: A system for forming a layer bonded to a surface of a solid substrate , the system comprising:a. a die having a base and a removable top, for enclosing the substrate in a form of a hub-disc assembly and a powder mixture consisting of a powder metal and a ceramic particulate, wherein the hub-disc assembly melts at a first temperature, and wherein the metal or metal alloy component of the powder mixture is different from the metal or metal alloy forming the substrate, and consists of a metal or metal alloy which melts at a second temperature less than the first temperature;b. a heating subsystem configured to release energy from a provided source for heating contents of the die;c. a mechanical subsystem configured to apply a force against the die contents; andd. a controller coupled to control the heating subsystem and the mechanical subsystem, the controller configured to enable an exothermic reaction between the surface of the substrate and the powder by heating the contents; and to enable densification of the contents by applying the force for a period that includes time before the contents have cooled to an ambient temperature.2: The system of claim 1 , further comprising:a vacuum subsystem adapted to remove gas from the contents of the die via the optional vent.3: The system of claim 1 , wherein the substrate comprises a vented hub-disc assembly.4: The system of claim 1 , wherein the powder mixture is press consolidated and the consolidated powder mixture is placed on the substrate in the die and ...

TWO-COAT SINGLE CURE POWDER COATING

Methods and systems for coating metal substrates are provided. The methods and systems include sequential application of low flow and high flow powder coatings followed by a single heating step to provide a cured coating. The methods and systems include a marker that allows coating uniformity to be monitored and assessed during application. The described methods provide coatings with optimal surface smoothness and edge coverage. 1. A method , comprising:providing a metal substrate;applying a first coating comprising a powder coating composition with flow of no more than about 40 mm;applying a second coating comprising a powder coating composition with flow of a least about 40 mm; andheating the first coating and second coating in a single step to form a continuous coating.2. A method , comprising:providing at least a first powder composition with flow of no more than about 40 mm;optionally, providing at least a second powder composition with flow of at least about 40 mm; andproviding instructions for coating a metal substrate with at least the first composition, followed by coating with a second composition, and heating the two compositions in a single step to form a continuous coating.3. A coated article made by a process comprising:providing a substrate;providing at least a first powder composition with flow of no more than about 40 mm;optionally, providing at least a second powder composition with flow of at least about 40 mm; andheating the first coating and second coating in a single step to form a continuous coating.46-. (canceled)7. The method of claim 1 , wherein the first coating composition has a flow of about 15 mm to 40 mm.8. The method of claim 1 , wherein the first coating composition has a flow of about 20 mm to 35 mm.9. The method of claim 1 , wherein the second coating composition has flow of greater than about 50 mm.10. The method of claim 1 , wherein the second coating composition has flow of greater than about 70 mm.11. The method of claim 1 , ...

COATING METHOD AND COMPONENT

A coating method for applying a cover layer to a base material is provided. A solder positioned on a surface of the base material is heated until it is molten, for joining the solder to the base material in a heat treatment. Oxygen is diffused in the molten lot for forming a diffusion layer in the cover layer. A component for a steam turbine is also provided. 1. A coating process for applying a covering layer onto a base material , comprising:heating a solder positioned on a surface of the base material in a heat treatment until the solder is molten to join the solder to the base material, wherein oxygen is diffused into the molten solder to form a diffusion layer in the covering layer.2. The coating process as claimed in claim 1 , wherein a titanium alloy is used as the base material.3. The coating process as claimed in claim 2 , wherein a titanium-based solder is used as the solder.4. The coating process as claimed claim 1 , wherein the solder is mixed with an additional base material which consists of the same material as the base material.5. The coating process as claimed in claim 4 , wherein the additional base material is present in a proportion by mass of from 30% to 70% in the solder.6. The coating process as claimed in claim 1 , wherein the solder is used in a pulverulent form.7. The coating process as claimed in claim 6 , wherein a ribbon in which the pulverulent solder has been applied to a support layer is used.8. A component for a steam turbine claim 6 , comprising:a base material; anda covering layer affixed to a surface of the base material, wherein the covering layer has a diffusion layer in which atomic oxygen is embedded in a metal lattice of the covering layer. This application claims priority to PCT Application No. PCT/EP2015/054481, having a filing date of Mar. 4, 2015, based off of German application No. DE 102014205413.3 having a filing date of Mar. 24, 2014, the entire contents of which are hereby incorporated by reference.The following ...

MICRO-NANO COMPOSITE POWDER DEDICATED FOR LASER REPAIR OF TINY CRACKS IN STAINLESS STEEL SURFACE

A micro-nano composite powder dedicated for laser repair of tiny crack in stainless steel surface, which belongs to the technical field of laser repair and comprises 3 wt %-7 wt % of nano-WC, 0.5 wt %-2 wt % of nano-AlO, 0.2 wt %-0.8 wt % of micro-V powder and the balance of micro stainless steel powder, wherein the stainless steel powder comprises 0.08 wt % of C, 0.5 wt % of Si, 1.46 wt % of Mn, 0.03 wt % of P, 0.005 wt % of S, 19 wt % of Cr, 9.5 wt % of Ni, 0.5 wt % of Mo and the balance of Fe. The micro and nano powders are fully mixed through ball milling and further uniformly mixed after being blended with anhydrous ethanol. The composite powder provided by the present invention is particularly suitable for laser repair of tiny crack in the surface of stainless steel part with high toughness requirement. After laser repair, the composite powder can be fully fused with the substrate, the repaired layer and the substrate are metallurgically bonded at the interface with no crack or impurity, the repaired layer contains fine grains, and therefore the compactibility and fracture property of the repaired layer are improved. 1. A micro-nano composite powder dedicated for laser repair of tiny crack in stainless steel surface , wherein the composite powder comprises 3 wt %-7 wt % of nano-WC , 0.5 wt %-2 wt % of nano-AlO , 0.2 wt %-0.8 wt % of micro-V powder and the balance of micro stainless steel powder , wherein the micro and nano powders are fully mixed through ball milling and further uniformly mixed after being blended with anhydrous ethanol; the stainless steel powder comprises 0.08 wt % of C , 0.5 wt % of Si , 1.46 wt % of Mn , 0.03 wt % of P , 0.005 wt % of S , 19 wt % of Cr , 9.5 wt % of Ni , 0.5 wt % of Mo and the balance of Fe.2. A micro-nano composite powder dedicated for laser repair of tiny crack in stainless steel surface of claim 1 , wherein the nano-WC powder has a particle diameter of 50-80 nm and a purity of 99.99%.3. A micro-nano composite powder ...

METHOD FOR LASER CLADDING AND FORMING OF METAL OR ALLOY UNDER PARTIAL ATMOSPHERE PROTECTION

The present invention relates to a method for laser cladding and forming of a metal or alloy under partial atmosphere protection. Including: transporting a metal or alloy powder beam by an inert carrier gas to move on a machined surface with a focused laser beam; and forming at least one layer of inert protective gas at the outer periphery of the metal or alloy powder beam. The inert protective gas includes first inert protective gas, and the first inert protective gas is at the outer periphery of the focused laser beam. The problems of limited size, high cost and difficulty in moving a cladding and forming system and the like during part forming are solved by forming the inert protective gas at the outer periphery of the focused laser beam. Compared with the prior art, the convenient, fast and economical method is provided for on-site part forming and repair. 110-. (canceled)11. A method for laser cladding and forming of a metal or alloy under partial atmosphere protection , comprising:transporting a metal or alloy powder beam by an inert carrier gas to move on a machined surface with a focused laser beam; andforming at least one layer of inert protective gas at the outer periphery of the metal or alloy powder beam.12. The method for laser cladding and forming of a metal or alloy under partial atmosphere protection according to claim 11 , wherein the metal or alloy powder beam and the inert carrier gas are coaxial with the focused laser beam claim 11 , and spraying directions thereof are consistent.13. The method for laser cladding and forming of a metal or alloy under partial atmosphere protection according to claim 11 , wherein the thickness of the inert protective gas of each layer is sequentially increased in the radial direction of a center line of the metal or alloy powder beam.14. The method for laser cladding and forming of a metal or alloy under partial atmosphere protection according to claim 11 , wherein the inert protective gas comprises first inert ...

PLASMA RESISTANT SEMICONDUCTOR PROCESSING CHAMBER COMPONENTS

Described herein are components of a semiconductor processing apparatus, where at least one surface of the component is resistant to a halogen-containing reactive plasma. The component includes a solid structure having a composition containing crystal grains of yttrium oxide, yttrium fluoride or yttrium oxyfluoride and at least one additional compound selected from an oxide, fluoride, or oxyfluoride of neodymium, cerium, samarium, erbium, aluminum, scandium, lanthanum, hafnium, niobium, zirconium, ytterbium, hafnium, and combinations thereof. 1. A component of a semiconductor processing apparatus , wherein a surface of the component is resistant to a halogen-comprising reactive plasma , the component comprising: crystal grains selected from a group consisting of yttrium oxide, yttrium fluoride and yttrium oxyfluoride, and', 'at least one additional compound selected from a group consisting of an oxide, fluoride, or oxyfluoride of neodymium, cerium, samarium, erbium, aluminum, scandium, lanthanum, hafnium, niobium, zirconium, ytterbium and combinations of an oxide, fluoride or oxyfluoride of at least one of these elements., 'a solid structure having an overall uniform composition, wherein the composition comprises2. The component of claim 1 , wherein the composition further comprises an amorphous phase comprising yttrium and fluorine.3. The component of claim 1 , wherein the composition comprises a yttrium aluminum oxyfluoride (Y—Al—O—F) amorphous phase.4. The component of claim 1 , wherein the composition comprises a yttrium oxide.5. The component of claim 1 , wherein in the composition comprises a yttrium fluoride.6. The component of claim 1 , wherein the composition comprises a yttrium oxyfluoride.7. The component of claim 1 , wherein the at least one additional compound comprises aluminum oxide claim 1 , aluminum fluoride or aluminum oxyfluoride.8. The component of claim 1 , wherein the at least one additional compound comprises zirconium oxide claim 1 , ...

System and method for component material addition

A system is disclosed for depositing material on a component. The system includes a deposition device operatively coupled to a fiber optic Nd:YAG laser. The deposition device includes a focusing prism that focuses the Nd:YAG laser at a focal area on a bladed disk, where the focal area on the bladed disk is between two blades of the disk. The system further includes an imaging means that views the focal area of the component. The imaging means and the fiber optic Nd:YAG laser each are positioned in a substantially similar optical relationship to the focal area on the bladed disk. The system further includes an additive material delivery means that delivers additive material to the component at the focal area on the component.

Methods for repair of aircraft wheel and brake parts

Systems and methods are disclosed for aircraft wheels and brakes systems for use in, for example, an aircraft. In this regard, a method for repair of at least one of an aircraft wheel and an aircraft brake part may comprise pre-treating a surface of the aircraft wheel and/or aircraft brake part, using an additive manufacturing repair process to apply repair material to the surface of the aircraft wheel and/or aircraft brake part, and post-treating the aircraft wheel and/or aircraft brake part resulting in the restoration of a geometric profile and/or a structural capability of the aircraft wheel and/or aircraft brake part.

SYSTEMS AND METHODS FOR FORMING A LAYER ONTO A SURFACE OF A SOLID SUBSTRATE AND PRODUCTS FORMED THEREBY

A method for forming a vehicular brake rotor involving loading a shaped metal substrate with a mixture of metal alloying components and ceramic particles in a dieheating the contents of the die while applying pressure to melt at least one of the metal components of the alloying mixture whereby to densify the contents of the die and form a ceramic particle-containing metal matrix composite coating on the metallic substrate; and cooling the resulting coated product. 1. A method for integrating a liquid metal matrix composite to a surface of a metal substrate , the method comprising:enabling a reaction involving the liquid metal matrix composite; andheating and densifying the combination of the liquid metal matrix composite and the metal substrate during at least a portion of the reaction, and cooling the metal matrix composite from liquid to solid while applying pressure to the composite, and optionally heat treating the formed product.2. The method of claim 1 , further comprising densifying the combination of the liquid metal matrix composite and the metal substrate during at least a portion of a duration of the reaction.3. The method of claim 1 , wherein the volume of the liquid metal matrix composite is less than the volume of the substrate.4. The method of claim 1 , wherein the substrate has a melting temperature that corresponds to the melting point of an element of the group consisting of aluminum claim 1 , iron and titanium claim 1 , or an alloy thereof claim 1 , preferably an aluminum alloy comprises aluminum and one or more elements of the group consisting of cobalt claim 1 , copper claim 1 , iron. nickel claim 1 , titanium claim 1 , vanadium claim 1 , zinc claim 1 , chromium claim 1 , magnesium claim 1 , manganese claim 1 , niobium claim 1 , and silicon5. The method of claim 1 , characterized by one or more of the following features:a. wherein the reaction involves an exothermic reaction of two or more metals selected from the group consisting of aluminum, ...

METHOD OF COLORIZING STAINLESS STEEL USING STRIP ANNEAL PROCESSING

A method of colorizing stainless steel strip involves the continuous surface treatment of stainless steel strip with aqueous suspensions of rare earth oxide nano or micro particles or aqueous rare earth nitrate solutions of nano or micro particles. The surface treatment can be applied by roll coating, spraying or other conventional application techniques. The coated strip is then continuously annealed. The surface treatment can provide a variety of colors. It also improves corrosion resistance of the processed stainless steel strip. Steel strip treated in this manner is suitable for a variety of applications in the building systems, automotive and appliance markets. 1. A process for colorizing the surface of stainless steel strip comprising:coating said stainless steel strip on at least one of the said sides with at least one of an aqueous suspension comprising a rare earth oxide or an aqueous solution comprising a rare earth nitrate;continuously annealing said coated stainless steel strip.2. The process of claim 1 , wherein the rare earth oxide comprises nanoparticles.3. The process of claim 1 , wherein the rare earth oxide comprises microparticles.4. The process of claim 1 , wherein the continuous anneal process is performed in a dry atmosphere with a dewpoint of less than about 0° F.5. The process of claim 4 , wherein the dewpoint is less than about −40° F.6. The process of claim 1 , wherein the continuous anneal process is performed in a wet atmosphere with a dewpoint of more than 80° F.7. The process of claim 6 , wherein the continuous anneal process is performed in a wet atmosphere with a dewpoint of more than 100° F.8. The process of claim 1 , wherein the coating leaves a residue of a rare earth oxide in the range of about 300 to about 3000 μg/m.9. The process of claim 8 , wherein the residue of the rare earth oxide is in the range of 500 to about 1000 μg/m.10. The process of claim 1 , wherein the continuous anneal process is performed at a temperature ...

STEEL-VANADIUM ALLOY CLADDING FOR FUEL ELEMENT

This disclosure describes various configurations and components for bimetallic and trimetallic claddings for use as a wall element separating nuclear material from an external environment. The cladding materials are suitable for use as cladding for nuclear fuel elements, particularly for fuel elements that will be exposed to sodium or other coolants or environments with a propensity to react with the nuclear fuel. 1. A steel-middle layer-vanadium cladding manufacturing method comprising:fabricating a steel tube;fabricating a vanadium tube of carbon-doped vanadium or vanadium alloy;depositing one of nickel, nickel alloy, chromium, chromium alloy, zirconium or zirconium alloy one either the inside of the steel tube or the outside of the vanadium tube;inserting the vanadium tube into the steel tube thereby creating a steel-middle layer-vanadium intermediate tube;metallurgical bonding the steel-middle layer-vanadium intermediate tube;pilgering or extruding the steel-middle layer-vanadium intermediate tube; andcold working the steel-middle layer-vanadium intermediate tube after the metallurgical bonding and pilgering or extruding operations to obtain a steel-middle layer-vanadium cladding.2. The steel-middle layer-vanadium cladding manufacturing method of claim 1 , wherein the steel-middle layer-vanadium cladding consists of:an outer layer of steel;an inner layer of at least 90% vanadium; anda middle layer of nickel, nickel alloy, chromium, chromium alloy, zirconium or zirconium alloy between the outer layer and the inner layer.3. The steel-middle layer-vanadium cladding manufacturing method of claim 1 , wherein the metallurgical bonding operation includes hot isostatic pressing of the steel-middle layer-vanadium intermediate tube.4. The steel-middle layer-vanadium cladding manufacturing method of claim 1 , wherein the metallurgical bonding operation is performed after the pilgering or extruding operation.5. The steel-middle layer-vanadium cladding manufacturing method ...

FLEXIBLE SELF-ADAPTIVE COMPOSITE CARBON BRUSH-TYPE ELECTROMAGNETIC COMPOSITE FIELD SYCHRONOUS LASER CLADDING DEVICE

A flexible self-adaptive composite carbon brush-type electromagnetic composite field synchronous laser cladding device, comprising an electromagnetic field synchronous coupling module that processes a part to be processed, a mechanical arm that drives the electromagnetic field synchronous coupling module to move, and a laser that generates laser; the electromagnetic field synchronous coupling module comprises a laser head, an electric field portion and a magnetic field portion; the magnetic field portion comprises two magnetic field generating modules, and the electric field portion comprises two electric field generating modules, the magnetic field portion and the electric field portion both being fixedly erected at the periphery of the laser head by means of a supporting structure. This invention adopts four sets of coil parts arranged in the annular circumference, and continuous adjustment of the magnetic field size can be realized with the external magnetic field power supply, and the size meets the use requirement; the design of the pointed part of the iron core head improves the magnetic field intensity and linearity of the processing surface. The supporting structure ensures simultaneous follow-up coupling of the electric and magnetic fields. 1. A flexible self-adaptive composite carbon brush type electromagnetic composite field synchronous laser cladding device , herein comprises an electromagnetic field synchronous coupling module for machining the part to be processed , a mechanical arm for driving the electromagnetic field synchronous coupling module to move and a laser generating laser;the electromagnetic field synchronous coupling module comprises a laser head, an electric field portion and a magnetic field portion;the laser head is connected with the mechanical arm through a fixing frame, wherein the fixing frame comprises an upper fixing plate and a lower fixing plate which are opposite to each other in an up-and-down manner, and the upper fixing ...

METHOD FOR PREPARING A CARBIDE CERAMICS MULTILAYER COATING ON, AND OPTIONALLY IN, A PART MADE OF A CARBON-CONTAINING MATERIAL USING A REACTIVE MELT INFILTRATION RMI TECHNIQUE

A method preparing a metals carbides multilayer coating on at least one surface of a first carbon layer of a substrate, or under the surface inside the first carbon layer, by a reactive melt infiltration technique, includes: a) putting the surface into contact with a solid metal disilicide MSi, M is selected from hafnium, titanium, and tantalum; b) heating the substrate and the metal disilicide to above the melting temperature of the metal disilicide; c) observing a plateau at the temperature for a sufficient duration so that the metal disilicide reacts with the carbon and forms a first multilayer coating including a dense and continuous layer of SiC, fully covered by a dense and continuous layer of MC; d) cooling the part with the first multilayer coating; and then, at the end of d), optionally e) depositing a second carbon layer at the surface of the first multilayer coating. 114-. (canceled)15. A method for preparing a metals carbides multilayer coating on at least one surface of a first carbon layer of a substrate , or under the surface inside the first carbon layer , by a reactive melt infiltration technique , the method comprising:{'sub': '2', 'a) putting the surface into contact with a solid metal disilicide MSi, wherein M is selected from hafnium, titanium, and tantalum;'}{'sub': 'P', 'b) heating the substrate and the metal disilicide up to a temperature Tabove the melting temperature of the metal disilicide;'}{'sub': 'P', 'c) observing a plateau at the temperature Tfor a sufficient duration so that the metal disilicide reacts with the carbon and forms a first multilayer coating comprising a dense and continuous layer of SiC, fully covered by a dense and continuous layer of MC;'}d) cooling the part provided with the first multilayer coating;and then, at the end of d), optionally the following e) is further carried out:e) depositing a second carbon layer at the surface of the first multilayer coating;at the end of d) or of e), the following successive f) to i ...

METHODS OF FORMING AND METHODS OF REPAIRING EARTH BORING-TOOLS

A method of forming at least a portion of an earth-boring tool includes entering an electronic representation of at least one geometric feature of at least a component of an earth-boring tool in a computer system including memory and a processor, the computer system operatively connected to a multi-axis positioning system, a direct metal deposition tool, and a material removal tool. The processor generates a tool path for the direct metal deposition tool. The tool path is based at least in part on the electronic representation of the at least one geometric feature of the at least a component of the earth-boring tool. The direct metal deposition tool is operated along the tool path to deposit metal on an earth-boring tool component coupled to the multi-axis positioning system to at least partially fonn the at least one geometric feature of the earth-boring tool. Methods also include methods of repairing earth-boring tools. 1. A method of forming at least a portion of an earth-boring tool , the method comprising:entering an electronic representation of at least one geometric feature of at least a component of an earth-boring tool in a computer system including memory and a processor, the computer system operatively connected to a multi-axis positioning system, a direct metal deposition apparatus, and a material removal apparatus;generating, with the processor, a path for deposition of metal material by the direct metal deposition, apparatus, the deposition path based at least in part on the electronic representation of the at least one geometric feature of the at least a component of the earth-boring tool;operating the direct metal deposition apparatus to deposit metal material along the deposition path to deposit metal material on an earth-boring tool component coupled to the multi-axis positioning system to at least partially form the at least one geometric feature of the earth-boring tool;generating, with the processor, a path for removal of metal material by the ...

Coating For Cutting Implement

A cutting implement including a metal substrate, carbide edge(s), and coating is provided. The coating is zirconium PVD (ZrCRTiNO), which provides protection against corrosion of the metal substrate. In some instances, the zirconium PVD provides protection from corrosion for at least 200 hours. A layer of carbide can be added to one or more cutting edges of the metal substrate prior to the deposition of the coating. The carbide increases the sharpness of the cutting edges and therefore increases the life or longevity of the cutting edges. Thus, a combination of zirconium PVD (ZrCRTiNO) as a coating and carbide edges on a metal substrate can increase the life of the metal substrate by providing increased hardness, sharpness, and anti-corrosive properties.

NOVEL COATING CONCEPT

The present invention relates to composition comprising a blend of at least one boron source and at least one silicon source, and the composition further comprises particles selected from particles having wear resistance properties, particles having surface enhancing properties, particles having catalytic properties or combinations thereof, wherein the blend comprises boron and silicon in a weight ratio boron to silicon within a range from about 3:100 wt:wt to about 100:3 wt:wt, wherein silicon and boron are present in the blend in at least 25 wt %, and wherein the at least one boron source and the at least one silicon source are oxygen free except for inevitable amounts of contaminating oxygen, and wherein the blend is a mechanical blend of particles in and the particles have an average particle size less than 250 μm. The present invention relates further to a method for providing a coated product and a coated product obtained by the method. 132-. (canceled)33. A composition comprising particles selected from particles having wear resistance properties , particles having surface enhancing properties , particles having catalytic properties or combinations thereof , and a mechanical blend comprising at least one powder of particles of a boron source and at least one powder of particles of a silicon source , each particle in the powders is either of a silicon source or of a boron source and wherein the particles have an average particle size less than 250 μm ,wherein the mechanical blend comprises boron and silicon in a weight ratio boron to silicon within a range from about 3:100 wt:wt to about 100:3 wt:wt;wherein silicon and boron are present in the blend in at least 25 wt %;wherein the at least one boron source and the at least one silicon source are oxygen free except for inevitable amounts of contaminating oxygen, and wherein the inevitable amount of contaminating oxygen is less than 10 wt.34. The composition according to claim 33 , wherein the silicon source is ...

CO3W3C Fishbone-Like Hard Phase-Reinforced Fe-Based Wear-Resistant Coating and Preparation Thereof

A CoWC fishbone-like hard phase-reinforced Fe-based wear-resistant coating and the preparation thereof, which belongs to the field of a wear-resistant coating on the surface of a material and a preparation method thereof. The wear-resistant coating comprises: 1.89-3.77% of C, 5.4-11.7% of Cr, 3.3-7.15% of Ni, 28.81-57.83% of W, 4.2-8.4% of Co, 0.03-0.065% of Si and the balance of Fe. The preparation process of the wear-resistant coating comprises: (1) before plasma cladding, pretreating a matrix; (2) pretreating an iron-based alloy powder; and (3) adjusting the process parameters of plasma cladding, preparing a cladding layer with a predetermined width and a predetermined thickness, and naturally cooling same down in air. The wear-resistant coating is simple in process; the prepared cladding layer has a strong metallurgical bonding property with the matrix structure, so that the best performance matching between the ceramic phase of the cladding layer and the matrix can be achieved; a fishbone-like hard phase CoWC has a very high hardness value and plays the role of a framework in the frictional process to reduce the wear of the matrix structure, thereby achieving an excellent wear resistance; plasma cladding is convenient to operate, and can be automatized; and the prepared wear-resistant layer is high in size precision and can be widely applied to surface modification of mechanical parts. 1. A CoWC fish-bone-shape hard-phase reinforced Fe-based wear-resistant coating , characterized in that: the wear-resistant coating consists of the following alloy powder elements in weight percentage: C: 1.89-3.77% , Cr: 5.4-11.7% , Ni: 3.3-7.15% , W: 28.81-57.83% , Co: 4.2-8.4% , Si: 0.03-0.065% , and the remaining is Fe.2. A method for preparing the CoWC fish-bone-shape hard-phase reinforced Fe-based wear-resistant coating according to claim 1 , characterized in that: a plasma cladding process is used to clad the Fe-based WC alloy powder on a surface of a metal matrix to form ...

METHOD OF FORMING A SPECTRAL SELECTIVE COATING

A method of forming a spectral selective coating is disclosed. The method may include providing particles on a substrate, wherein the particles include submicron particles. The method may farther include sintering the particles under atmospheric pressure to form a sintered layer an the substrate and texturing the sintered layer to provide a submicron surface roughness height on the sintered layer. 1. A method of forming a spectral selective coating , the method comprising:providing particles on a substrate, wherein the particles include submicron particles;sintering the particles under atmospheric pressure to form a sintered layer on the substrate; andtexturing the sintered layer to provide a submicron surface roughness height on the sintered layer.2. The method of claim 1 , wherein sintering the particles includes at least one of laser sintering claim 1 , solid state sintering claim 1 , and liquid phase sintering.3. The method of claim 2 , wherein laser sintering is performed with one of a high power direct diode laser claim 2 , a solid state laser claim 2 , a sealed COlaser claim 2 , a fiber laser claim 2 , and allowing gas COlaser.4. The method of claim 1 , wherein the particles include particles having a dimension greater than or equal to one micron.5. The method of claim 1 , wherein the particles comprise one or more of metal particles claim 1 , tungsten claim 1 , nickel claim 1 , chromium claim 1 , and steel.6. The method of claim 1 , further including applying an antireflective coating on the sintered layer.7. The method of claim 6 , wherein the antireflective coating is applied under atmospheric pressure.8. The method of claim 1 , wherein the substrate is a metal substrate.9. The method of claim 8 , wherein the substrate is a steel substrate.10. A spectral selective coating claim 8 , comprising:a substrate; and the particles include submicron particles; and', 'the sintered layer is textured and has a submicron surface roughness height on the sintered layer., ...

Intermetallic wear-resistant layer for titanium materials

Disclosed is a process for producing a wear-resistant layer, in particular on components of gas turbines or aero engines. The process comprises providing a component with a titanium material on at least part of a surface on which the wear-resistant layer is to be produced, applying a solder formed from a cobalt base material to the titanium material, soldering the solder to the titanium material by applying heat and producing at least one diffusion zone between solder and titanium material which comprises intermetallic phases.

METHOD FOR COMPOSITE ADDITIVE MANUFACTURING WITH DUAL-LASER BEAMS FOR LASER MELTING AND LASER SHOCK

A method for composite additive manufacturing with dual-laser beams for laser melting and laser shock, includes the following steps: 1) performing cladding on metal powder through a first continuous laser beam by thermal effect, and performing synchronous shock forging on material in a cladding region through a second short-pulse laser beam by shock wave mechanical effect, so as to perform the composite additive manufacturing; and 2) stacking the material in the cladding region layer by layer to form a workpiece. The method has the characteristics that the two laser beams make full use of the thermal effect and the shock wave mechanical effect, and synchronously work in a coupled manner, so that defects such as pores, incomplete fusion and shrinkage in a cladding layer are eliminated, and the performance of the workpiece is obviously improved. The method is high in manufacturing efficiency. 1. A method for composite additive manufacturing with dual-laser beams for laser melting and laser shock , comprising the following steps:performing cladding on metal powder through a first continuous laser beam by thermal effect, and performing synchronous shock forging on material in a cladding region through a second short-pulse laser beam by shock wave mechanical effect, so as to perform the composite additive manufacturing; andstacking the material in the cladding region layer by layer to form a workpiece.2. The method for composite additive manufacturing with dual-laser beams for laser melting and laser shock according to claim 1 , wherein a temperature of the first continuous laser beam is monitored and controlled online through a temperature sensor according to different characteristics of machined metal materials claim 1 , so as to enable the metal materials to be in a temperature range that is most favorable for plastic forming after the metal materials are cladded and then cooled claim 1 , and the second short-pulse laser beam performs the shock forging; and the ...

LASER CLADDING NOZZLE APPARATUS AND PUNCTURING METHOD THEREFOR

The present invention provides a laser cladding nozzle apparatus, where the laser cladding nozzle apparatus is mounted on a laser head, and the laser cladding nozzle apparatus includes a conical nozzle head, where the conical nozzle head is connected to an inner side of the laser head; the conical nozzle head includes a plurality of first powder channels, a plurality of first inlets is evenly distributed on an upper end circumference of the conical nozzle head, a plurality of first outlets is evenly distributed on a lower end circumference of the conical nozzle head, the first inlet is in communication with the first outlet through the first powder channel, and a size and a quantity of the first inlet are the same as those of the first outlet. The present invention further provides a puncturing method for a laser cladding nozzle apparatus. 1. A laser cladding nozzle apparatus , wherein the laser cladding nozzle apparatus is mounted on a laser head , and the laser cladding nozzle apparatus comprises a conical nozzle head , wherein the conical nozzle head is connected to an inner side of the laser head; the conical nozzle head comprises a plurality of first powder channels , a plurality of first inlets is evenly distributed on an upper end circumference of the conical nozzle head , a plurality of first outlets is evenly distributed on a lower end circumference of the conical nozzle head , the first inlet is in communication with the first outlet through the first powder channel , and a size and a quantity of the first inlet are the same as those of the first outlet.2. The laser cladding nozzle apparatus according to claim 1 , wherein the first inlet and the first outlet are of a circular hole shape claim 1 , the first inlet is provided on a middle portion of the upper end circumference of the conical nozzle head claim 1 , and the first outlet is provided on a middle portion of the lower end circumference of the conical nozzle head.3. The laser cladding nozzle ...

SLURRY BASED DIFFUSION COATINGS FOR BLADE UNDER PLATFORM OF INTERNALLY-COOLED COMPONENTS AND PROCESS THEREFOR

A component includes a diffusion coating comprising an inter-diffusion zone between the diffusion coating and a substrate and a non-metallic inclusions zone adjacent to an outer surface of the diffusion coating. A method of coating a component includes applying an aluminizing slurry to a localized area of a component and applying a chromizing slurry to the localized area of the component subsequent to heat treating the aluminizing slurry. 1. A component , comprising:a substrate; anda diffusion coating on a localized area of the substrate comprising an inter-diffusion zone between the diffusion coating and the substrate and a non-metallic inclusions zone adjacent to an outer surface of the diffusion coating.2. The component as recited in claim 1 , wherein the diffusion coating is a Cr-enriched γ-Ni based layer with a Cr content of 20 wt. % minimum and Al content of 4 wt. % minimum between 1-3 mils (thousandth of an inch (0.0254-0.0762 mm)) thick.3. The component as recited in claim 1 , wherein the diffusion coating is a Cr-enriched γ-Ni based layer with a Cr content of 20 wt. % minimum and Al content of 4 wt. % minimum and has a nominal thickness of 1.5 mils (thousandth of an inch (0.0381 mm)).4. The component as recited in claim 1 , wherein the substrate is manufactured of a superalloy.5. The component as recited in claim 1 , wherein the component is a rotor blade.6. The component as recited in claim 1 , wherein the localized area of the substrate is a platform of a rotor blade.7. The component as recited in claim 1 , wherein the localized area of the substrate is an under-platform of a rotor blade.8. A rotor blade for a gas turbine engine claim 1 , comprising:an airfoil;a root;a platform that comprises a gas path side adjacent to the airfoil and a non-gas path side adjacent to the root; anda diffusion coating on the non-gas path side of the platform, the diffusion coating comprising a Cr-enriched γ-Ni based layer with a Cr content of 20 wt. % minimum and Al content ...

REFURBISHED BEARING AND METHOD OF REPAIRING A BEARING

A method of refurbishing a bearing is disclosed. The method includes providing a bearing having a tube structure and inner and outer surfaces. The bearing is mounted onto a mounting unit and a cladding head of a laser cladding unit is positioned within a bore of the bearing. The cladding head forms laser cladding layers disposed on the inner surface of the bearing. The cladding layers increase a thickness of the bearing and reduce an internal diameter of the bearing. 1. A method of cladding a bearing comprising:providing a bearing having a tube structure, the bearing comprises inner and outer surfaces;mounting the bearing onto a mounting unit;positioning a cladding head of a laser cladding unit within a bore of the bearing, wherein the cladding head comprises a source end and a head end; andforming laser cladding layers disposed on the inner surface of the bearing, wherein the cladding layers increase a thickness of the bearing and reduce an internal diameter of the bearing.2. The method of wherein the head end comprises a cladding nozzle and a powder nozzle.3. The method of wherein the head end is in communication with the source end through a cladding shaft.4. The method of wherein the cladding and powder nozzle is positioned over the inner surface of the bearing.5. The method of wherein the cladding nozzle disposes a beam spot onto a cladding surface and the powder nozzle disposes a cladding material onto the cladding surface.6. The method of wherein the source end comprises a laser source claim 1 , a source feeder and an optical system.7. The method of wherein the laser source delivers a laser through a fiber cable to the optical system.8. The method of wherein the optical system comprises collimating and focusing lens.9. The method of wherein the bearing comprises copper-tin alloy.10. The method of wherein the material of the cladding layers is similar to the base bearing.11. The method of wherein the material of the cladding layers is different to the base ...

LASER-PRODUCED POROUS SURFACE

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam. 120-. (canceled)21. A medical implant comprising:porous first and second structures; andan intermediate structure attached to and located between the first and the second structures, the porous intermediate structure having a different porosity than the first and the second structures, wherein the average pore size of the first structure exceeds 80 μm.22. The medical implant of claim 21 , wherein the first structure includes an irregular porous construct.23. The medical implant of claim 21 , wherein the pores of the first and the second structures are predetermined.24. The medical implant of claim 21 , wherein the average pore size of the first structure exceeds 250 μm in diameter.25. The medical implant of claim 21 , wherein the average pore size of the first structure is less than 400 μm in diameter.26. The medical implant of claim 21 , wherein the average pore size of the first structure is less than 800 μm in diameter.27. The medical implant of claim 21 , wherein the first structure is a bone ingrowth structure.28. The medical implant of claim 21 , wherein the intermediate structure is directly attached to and inseparable from the first and the second structures.29. The medical implant of claim 21 , wherein the intermediate structure is substantially solid.30. The medical implant of claim 21 , further comprising a hole passing through a thickness of the implant claim 21 , the hole having a diameter substantially larger than a diameter of pores of the first and the second structures.31. The medical implant of claim 21 , wherein the first and the second structures are ...

Liquid composition

A liquid composition includes copper particles, an organic acid, and a solvent. The copper particle has a particle size of 0.5 μm˜30 μm which falls in a micron scale. The liquid composition performs reaction sintering by redox reactions taken place between the copper particles and an organic acid solution at a low temperature of 150° C. in order to produce a dense copper layer and improve the conventional micron-scale copper particles that requires a protective atmosphere for the high-temperature sintering before achieving the required densification. This liquid composition also prevents an excessive oxidation of the nano copper particles during the low-temperature sintering process and a failure of the dense sintering. Due to the agglomeration of nano copper particles, some areas have to be sintered first, so that the sintered products have a good uniformity of tissue and a low resistance below 0.04 ohm per square (Ω/□).

TOOL WITH CUTTING EDGE AND METHOD OF MANUFACTURING IT

The present invention discloses a method of manufacturing a tool with a cutting edge comprising a substrate for supporting and a cladding layer for forming the cutting edge, and a transition zone connecting the substrate and the cladding layer; the method of manufacturing it includes: providing a first material used for forming the substrate and having a first side; providing a second material which is clad onto the first side by way of laser cladding to form the cladding layer, and forming a transition zone between the cladding layer and the substrate where the first material and the second material are metallurgically bonded. The tool obtained by adopting the manufacturing process according to the present invention combines the following advantages: good toughness of the cutter body, high hardness of the cutting edge, not easy breaking off of the cutter body and the cutting edge, and long service life. 1. A method of manufacturing a tool with a cutting edge , wherein:the tool with a cutting edge comprises a substrate for supporting and a cladding layer for forming the cutting edge, and a transition zone connecting the substrate and the cladding layer;the method of manufacturing comprises:providing a first material used for forming the substrate and having a first side;providing a second material which is clad onto the first side by way of laser cladding to form a cladding layer, andforming the transition zone between the cladding layer and the substrate where the first material and the second material are metallurgically bonded.2. The method of manufacturing a tool with a cutting edge according to claim 1 , wherein the second material comprises at least one compound selected from the group consisting of tungsten carbide claim 1 , titanium carbide claim 1 , chromium carbide claim 1 , vanadium carbide claim 1 , aluminum oxide and zirconium oxide claim 1 , or comprises carbon and at least one of the following four metal monomers: tungsten claim 1 , titanium claim 1 , ...

Turbine blade and method of forming blade tip for eliminating turbine blade tip wear in rubbing

Coating systems for a cooled turbine blade tip, such as a metal turbine blade tip, are provided. The coating system includes an abrasive layer overlying the surface of the turbine blade tip. One or more buffer layers may additionally be disposed between an outer surface of the blade tip and the abrasive layer. The coated blade tip can be used with a ceramic matrix composite (CMC) shroud coated with an environmental barrier coating (EBC) to provide improved cooling to the tip so as to lengthen oxidation time of the abrasive layer and reduce blade tip wear. Methods are also provided for forming the cooled blade tip and applying the coating system onto the cooled turbine blade tip.

New powder composition and use thereof

A laser cladding or plasma transferred arc overlay welding process may be used advantageously to apply and to control the material properties of a coating designed for protecting the substrate against wear, corrosion and oxidation at elevated temperature. Furthermore, a laser cladding or plasma transferred arc overlay welding process may be used to apply the coating alloy materials in applications where traditional thermal spray or weld-applied coatings are not practical. By using these welding methods very good bonding is achieved by fusion during welding. At the same time the properties of the clad layer is preserved by the limited dilution typical of these two welding methods compared traditional overlay welding, by e.g. Gas Tungsten Arc Welding and the like.

LASER CLADDING SYSTEM FILLER MATERIAL DISTRIBUTION APPARATUS

Laser cladding filler material is introduced in a pattern on a on a substrate by a filler distribution apparatus having a linear or polygonal array of dispensing apertures for uniform distribution in advance of or during a laser beam transferring optical energy to the substrate. The distribution apparatus includes a housing (or assembly of coupled housings) that defines the distribution aperture array and an internal chamber in communication with the apertures that is adapted for retention of filler material. A mechanical feed mechanism, such as an auger, is adapted for feeding filler material from the internal chamber through the distribution apertures. A feed mechanism drive system is coupled to the mechanical feed mechanism, adapted for selectively varying filler material feed rate. The distribution aperture array may be selectively reconfigured to vary selectively the filler material distribution pattern. 1. Apparatus for laser cladding filler material distribution , comprising:a modular housing having an external surface defining a distribution aperture and an internal chamber in communication with the distribution aperture adapted for retention of filler material therein, the modular housing adapted for selective combination with other modular housings for selective assembly of varying distribution aperture arrays;a mechanical feed mechanism adapted for feeding filler material from the internal chamber through the distribution aperture; anda drive system, coupled to the mechanical feed mechanism, adapted for selectively varying filler material feed rate.2. The apparatus of comprising:a plurality of modular housings oriented in a distribution aperture array;a mounting structure coupling the modular housings into the distribution aperture array; andthe drive system selectively varying filler material feed rate through each aperture in the aperture array.3. The apparatus of claim 2 , the mechanical feed mechanism comprising an auger.4. The apparatus of claim 1 , ...

HIGH ENTROPY ALLOY POWDER FOR LASER CLADDING AND APPLICATION METHOD THEREOF

The present disclosure discloses a high-entropy alloy powder for laser cladding and a use method thereof. The alloy powder is CoCrFeMnNiC, and x has a value of 0.1-0.15. The specific method includes: subjecting a 45 steel substrate to surface pretreatment, mixing the weighed CoCrFeMnNi high-entropy alloy powder with different content of a nano-C powder uniformly and pre-placed on the pre-treated substrate surface to form a prefabricated layer, then placing the prefabricated layer at 80-90° C. for constant temperature treatment for 8-12 h, and under a protective atmosphere, subjecting the cladding powder to laser cladding on the surface of the 45 steel. The method of the present disclosure prepares a CoCrFeMnNiChigh-entropy alloy coating with performance superior to the CoCrFeMnNi high-entropy alloy coating. 1. A high-entropy alloy powder for laser cladding , wherein the alloy powder is CoCrFeMnNiC , and x has a value of 0.1 to 0.15.2. A method for preparing a laser cladding coating with the high-entropy alloy powder according to claim 1 , specifically comprising the following steps:(1) subjecting a 45 steel substrate to surface pretreatment: sanding, cleaning, and drying for use;(2) weighing a CoCrFeMnNi high-entropy alloy powder with an equal atomic ratio and a nano-C powder in proportion, and mixing mechanically after weighing;(3) blending the mixed powders with absolute ethanol to prepare a paste, using a mold to bond the paste to a predetermined position on the steel substrate to obtain a prefabricated coating followed by drying, and subjecting a cladding powder to laser cladding on the surface of the 45 steel in a protective atmosphere.3. The method according to claim 1 , wherein in step (2) claim 1 , the CoCrFeMnNi high-entropy alloy powder has an average particle size of less than 25 μm claim 1 , and a powder purity of no less than 99.9%; the nano-C powder has an average particle size of 30 nm to 50 nm claim 1 , and a purity of no less than 99.99%.4. The ...

PASSIVE COATINGS FOR BULK ALUMINUM AND POWDER PIGMENTS

Composition and process for preparing corrosion-resistant passive coatings on bulk-aluminum alloys and aluminum powder-pigments; said coatings derived from an acidic aqueous composition consisting essentially of potassium hexafluorozirconate, basic chromium sulfate and potassium tetrafluoroborate. 1. Process for preparing passive coatings on bulk-aluminum alloys and aluminum-powder pigments having a micro size ranging from about 2.8 to 4.0 microns which comprises coating said aluminum alloys and powder-pigments with an acidic aqueous composition having a pH from about 2.8 to 4.0 and at temperatures ranging from about 120° F. to 200° F. said aqueous composition consisting essentially of from about , in parts by weight per liter of water , 20 to 70 parts of potassium hexafluorozirconate , 15 to 92 parts of basic chromium sulfate and from 0.0 to 1.5 parts of potassium tetrafluoroborate.26-. (canceled)7. Coating composition for metal substrates comprising corrosion-resistant coated aluminum pigments and an effective amount of a film-forming binder selected from the group consisting inorganic and organic polymers , said coated aluminum pigments derived from an aqueous composition consisting essentially of , in parts by weight per liter of water , from about 20 to 70 parts of potassium hexafluorozirconate , from about 15 to 92 parts of basic chromium sulfate and from about 0.0 to 1.5 parts of potassium tetrafluoroborate.8. The coating composition of wherein the film-forming binder is an inorganic polymer.9. The coating composition of wherein the film-forming binder is an organic polymer.10. The coating composition of wherein the inorganic polymer is a silicone.11. The coating composition of wherein the organic polymer is polyacrylate.12. The coating composition of wherein the organic polymer is polyurethane.13. Process for preparing passive coatings on bulk-aluminum alloys and aluminum-powder pigments having a micro size ranging from about 2.8 to 4.0 microns which ...

Article and method for making an article

An article and a method for making shaped cooling holes in an article are provided. The method includes the steps of depositing a metal alloy powder to form an initial layer including at least one aperture, melting the metal alloy powder with a focused energy source to transform the powder layer to a sheet of metal alloy, sequentially depositing an additional layer of the metal alloy powder to form a layer including at least one aperture corresponding to the at least one aperture in the initial layer, melting the additional layer of the metal alloy powder with the focused energy source to increase the sheet thickness, and repeating the steps of sequentially depositing and melting the additional layers of metal alloy powder until a structure including at least one aperture having a predetermined profile is obtained. The structure is attached to a substrate to make the article.

Electronic part mounting substrate and method for producing same

An electronic part mounting substrate includes: a metal plate 10 (for mounting thereon electronic parts) of aluminum or an aluminum alloy having a substantially rectangular planar shape, one major surface of the metal plate 10 being surface-processed so as to have a surface roughness of not less than 0.2 micrometers; a plating film 20 of nickel or a nickel alloy formed on the one major surface of the metal plate 10; an electronic part 14 bonded to the plating film 20 by a silver bonding layer 12 (containing a sintered body of silver); a ceramic substrate having a substantially rectangular planar shape, one major surface of the ceramic substrate 16 being bonded to the other major surface of the metal plate 10; and a radiating metal plate (metal base plate) 18 bonded to the other major surface of the ceramic substrate 16.

Laser-Produced Porous Surface

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. 1depositing a first layer of a powder made from a metal selected from the group consisting of titanium, titanium alloys, stainless steel, cobalt chrome alloys, tantalum and niobium onto a substrate; andscanning a laser beam having a power (P) for a period of time (μsec) with a point distance (μm), to form a portion of a plurality of predetermined unit cells within said metal powder layer.. A method of producing a three-dimensional porous tissue in-growth structure comprising the steps of: The present application is a continuation of U.S. patent application Ser. No. 14/671,545 filed Mar. 27, 2015 which is a continuation of U.S. patent application Ser. No. 13/605,354 filed Sep. 6, 2012, which is a continuation-in-part of U.S. patent application Ser. No. 12/843,376, now U.S. Pat. No. 8,268,100, filed Jul. 26, 2010, which is a continuation of U.S. patent application Ser. No. 12/386,679, now U.S. Pat. No. 8,268,099, filed Apr. 22, 2009, which is a continuation of U.S. patent application Ser. No. 10/704,270, now U.S. Pat. No. 7,537,664, filed Nov. 7, 2003, which claims the benefit of U.S. Provisional Application No. 60/424,923 filed Nov. 8, 2002, and U.S. Provisional Application No. 60/425,657 filed Nov. 12, 2002. U.S. patent application Ser. No. 13/605,354 is also a continuation of U.S. patent application Ser. No. 12/846,327 filed Jul. 29, 2010, ...

LASER METAL DEPOSITION METHODOLOGY ON GRAPHITE SUBSTRATES FOR AEROSPACE COMPONENTS

A laser direct metal deposition method for a graphite substrate is provided. The laser direct metal deposition method includes creating an assembling by sliding an outer sheath over the graphite substrate. Further, laser direct metal deposition method includes performing a laser scanning of the outer sheath and performing a laser metal deposition over the graphite substrate with the outer sheath. 1. A laser direct metal deposition method for a graphite substrate , the laser direct metal deposition method comprising:creating an assembling by sliding an outer sheath over the graphite substrate;performing a laser scanning of the outer sheath; andperforming a laser metal deposition over the graphite substrate with the outer sheath.2. The laser direct metal deposition method of claim 1 , wherein the graphite substrate is prepared without metal plating.3. The laser direct metal deposition method of claim 1 , wherein the graphite substrate is prepared by plating with one or more metals including Nickel or Chromium to prevent oxidation.4. The laser direct metal deposition method of claim 1 , wherein the outer sheath acts as interface for a laser metal deposition molten pool.5. The laser direct metal deposition method of claim 1 , wherein the outer sheath comprises a metallic interface metal.6. The laser direct metal deposition method of claim 1 , wherein a thickness of the outer sheath is determined based on a thickness of a melt pool.7. The laser direct metal deposition method of claim 1 , wherein the outer sheath is mechanically restrained in place over the graphite substrate during the laser direct metal deposition method enable full contact between the outer sheath and the graphite substrate.8. The laser direct metal deposition method of claim 1 , wherein the graphite substrate comprises a rectangular box shape or a cylindrical shape.9. The laser direct metal deposition method of claim 1 , wherein the laser scanning of outer sheath is performed on a surface of the outer ...

Method for manufacturing heterometallic assembly and heterometallic assembly

A method for manufacturing a dissimilar metal joint product includes: spraying a metal powder capable of being joined to a steel material to at least a part of a surface of an aluminum or aluminum-alloy material at a low temperature and at a high speed to form a coating thereon; disposing the aluminum or aluminum-alloy material and the steel material such that the coating and the steel material face each other; and performing brazing using a brazing material or welding using a welding material between the coating and the steel material.

Refractory article, coating composition for preventing redox reaction, and method of manufacturing a refractory article

Provided are a refractory article, an anti-redox coating composition, and a method of manufacturing the refractory article. The refractory article includes: a platinum (Pt)-based substrate; and a coating layer for preventing a redox reaction on a surface of the Pt-based substrate, wherein the coating layer for preventing a redox reaction includes on an oxide basis SiO2 in an amount of about 40 wt % to about 70 wt %, Al2O3 in an amount of about 20 wt % to about 52 wt %, B2O3 in an amount of about 3 wt % to about 6 wt %; and CaO in an amount of about 2.4 wt % to about 4.8 wt %.

IRON BASED ALLOY SUITABLE FOR PROVIDING A HARD AND CORROSION RESISTANT COATING ON A SUBSTRATE, ARTICLE HAVING A HARD AND CORROSION RESISTANT COATING, AND METHOD FOR ITS MANUFACTURE

An iron-based alloy that is able to provide a coating on a substrate, the coating having simultaneously high hardness, corrosion resistance and bonding strength to the substrate. The iron-based alloy has 16.00-20.00% by weight Cr; 0.20-2.00% by weight B; 0.20-4.00% by weight Ni; 0.10-0.35% by weight C; 0.10-4.00% by weight Mo; optionally 1.50% by weight or less Si; optionally 1.00% by weight or less Mn, optionally 3.90% by weight or less Nb; optionally 3.90% by weight or less V; optionally 3.90% by weight or less W; and optionally 3.90% by weight or less Ti; the balance being Fe and unavoidable impurities; with the proviso that the total amount of Mo, Nb, V, W and Ti is in the range of 0.1-4.0% by weight of the alloy. 1. An iron-based alloy , consisting of16.00-20.00% by weight Cr;0.20-2.00% by weight B;0.20-4.00% by weight Ni;0.10-0.35% by weight C;0.10-4.00% by weight Mo;optionally 1.50% by weight or less Si;optionally 1.00% by weight or less Mn,optionally 3.90% by weight or less Nb;optionally 3.90% by weight or less V;optionally 3.90% by weight or less W; andoptionally 3.90% by weight or less Ti;the balance being Fe and unavoidable impurities;provided that the total of Mo, Nb, V, W and Ti is in the range of 0.1-4.0% by weight of the alloy.2. The iron-based alloy according to claim 1 , wherein the content of Cr is from16.50-19.50% by weight.3. The iron-based alloy according to claim 1 , wherein the content of B is from 0.20-1.20% by weight.4. The iron-based alloy according to claim 1 , wherein the content of Ni is from 0.20-3.00% by weight.5. The iron-based alloy according to claim 1 , wherein the content of Nb is from 0.20-3.00% by weight.6. The iron-based alloy according to claim 1 , wherein the content of the optional components Nb claim 1 , V claim 1 , W and Ti is each 1.50% by weight or less.7. The iron-based alloy according to claim 1 , which is in powder form.8. The iron-based alloy according to claim 7 , wherein the powder contains no or less than 2% by ...

LASER COATING PROCESS AND DEVICE THEREFOR

The invention relates to a process for applying a coating material to a surface, comprising the steps of:—providing a stream of gas mixture () comprising a carrier gas and a coating material (),—feeding the stream of gas mixture () onto the surface (), wherein the stream of gas 12 s mixture () impinges on the surface () and the coating material () applied there forms an area of impingement () on the surface ()—coupling at least one laser beam () into the stream of gas mixture (),—wherein the coupled-in energy of the at least one laser beam () is determined in such a way that the solid coating material () at least partially melts and—wherein each laser beam () is directed onto the stream of gas mixture () in such a way that the laser beam () does not fall on the area of impingement () on the surface. The invention also relates to a device for carrying out the process. 127-. (canceled)28. A process for applying a coating material to a surface comprising the steps of:providing a stream of gas mixture comprising a carrier gas and a solid, powdered coating material;feeding the stream of gas mixture to the surface, the stream of gas mixture impinging on the surface and the coating material applied to the surface forming an area of impingement on the surface,moving the surface and the stream of gas mixture relative to one another during the feeding of the stream of gas mixture to the surface;coupling at least one laser beam into the stream of gas mixture, the coupling in of the at least one laser beam being interrupted for a time during the feeding of the stream of gas mixture,wherein an amount of the coupled-in energy of the at least one laser beam is set such that the coating material is at least partially melted by the at least one laser beam,each of said at least one laser beam being directed onto the stream of gas mixture such that the laser beam does not impinge on the area of impingement on the surface,29. The process as claimed in claim 28 , wherein the coating ...

Process for producing aluminum-based metal composite, aluminum-based composite obtained by using the same, and aluminum-based structure having the aluminum-based composite

A process for producing aluminum-based metal composite, an aluminum-based composite obtained by using the same, and an aluminum-based structure having the said aluminum-based composite are provided. The aluminum-based metal treating method applies borax on the surface of an aluminum-based metal and heats such metal to a temperature over the melting point of borax. The aluminum-based composite includes aluminum in the range of 7 to 9 atomic %, sodium in the range of 11 to 13 atomic %, and oxygen in the range of 79 to 81 atomic %. The aluminum-based structure includes an aluminum-based substrate formed by an aluminum-based metal and an aluminum-based composite disposed in the aluminum based substrate.

Laser-Produced Porous Surface

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. 1. (canceled)2. A method of producing a three-dimensional porous structure comprising the steps of:depositing a first layer of a metal powder onto a substrate;scanning a beam at least once over the first layer of metal powder to melt the deposited first layer so as to create at least two solid portions separated from one another and defining a pore having a required pore size within the porous structure;depositing successive layers of metal powder onto the first layer; andrepeating the scanning steps for each of the successive layers until a desired height of the porous structure relative to the substrate is reached,wherein the metal powder is selected from the group consisting of titanium, titanium alloys, stainless steel, cobalt chrome alloys, tantalum and niobium,wherein the repeating steps form a plurality of pores having a pore size in a range from about 80 μm to 800 μm.3. The method of claim 2 , wherein the repeating steps form a plurality of pores claim 2 , and wherein a minimum pore size of the pores is in a range from about 80 μm to 100 μm.4. The method of claim 2 , wherein the repeating steps form a plurality of cells within the successive layers.5. The method of claim 4 , wherein the cells are regular polygons.6. The method of claim 4 , wherein the cells are irregular polygons.7. The method of claim 2 , wherein the substrate is a ...

SLIDE COMPONENT AND METHOD FOR PRODUCTION OF CLADDING ON A SUBSTRATE

A slide component, used in internal combustion engines, provided with a metal-based substrate material and a protective liner (R), with the slide component having at least two main elements, the first one composed by an element with high resistance to corrosion, and the second element providing increase of the resistance to wear and/or presenting lower friction than the substrate material, both of them covering at least one of the surfaces of the slide component. 112323. A component of a slide system to be used in internal combustion engines , comprising a metallic base () with at least one surface coated with a protective liner (R) , applied with a laser cladding process , wherein the liner comprises two essential elements ( ,) , the first essential element () being more resistant to corrosion and the second essential element () being more resistant to wear and/or providing to the lining material a friction coefficient lower than a friction coefficient of the metallic base.22. The component according to claim 1 , wherein the first element () is selected from the group consisting of cobalt claim 1 , nickel claim 1 , chromium claim 1 , molybdenum claim 1 , aluminum and tungsten claim 1 , at a percentage ranging from 60% to 90% in weight.33. The component according to claim 1 , wherein the second element () is selected from the group consisting of boron claim 1 , carbon claim 1 , niobium claim 1 , vanadium claim 1 , titanium and sulfur claim 1 , in a maximum percentage of 40% in weight.42. The component according to claim 1 , wherein the first element () of the protective liner (R) is a metal-based material formed at least by cobalt claim 1 , nickel claim 1 , chromium claim 1 , molybdenum and tungsten.53. The component according to claim 1 , wherein the second element () includes at least one of carbide claim 1 , nitride and sulfide compounds in its composition.63. The component according to claim 1 , wherein the second element () of the protective liner (R) exhibits ...

PHOTOSINTERING OF MICRON-SIZED COPPER PARTICLES

Micron-sized metal particles in an ink or paste composition are deposited onto a substrate and then photosimered. The substrate may comprise a polymeric material. The polymeric substrate may have a coefficient of thermal expansion greater than two times the coefficient of thermal expansion of the photosimered ink or paste composition. 1. A method for making a conductive film comprising:depositing an ink or paste composition comprising micron-sized metal particles onto a polymeric substrate having a melting point less than 200° C., wherein the micron-sized metal particles in the ink or paste composition have an average particle size greater than one micron;andphotosintering the ink or paste composition after being deposited onto the substrate.2. The method as recited in claim 1 , wherein the polymeric substrate has a thermal conductivity greater than 0.1 W/mK.3. The method as recited in claim 1 , wherein the average particle size of the micron-sized metal particles in the ink or paste composition is less than three microns.4. The method as recited in claim 1 , wherein the photosintering is performed with a broad spectrum light source.5. The method as recited in claim 1 , wherein the melting point is less than 150° C.6. The method as recited in claim 1 , wherein the metal particles comprise copper.7. The method as recited in claim 1 , wherein the metal particles are selected from the group consisting of Ag claim 1 , Ni claim 1 , Al claim 1 , and Fe.8. The method as recited in claim 1 , wherein the polymeric substrate is comprised of PET.9. The method as recited in claim 1 , wherein the photosintered metal particles are connected to each other with necks.10. The method as recited in claim 1 , wherein the polymeric substrate has a coefficient of thermal expansion greater than two times the coefficient of thermal expansion of the photosintered ink or paste composition.11. The method as recited in claim 1 , wherein the photosintering causes some of the metal particles to ...

METAL-BASED/DIAMOND LASER COMPOSITE COATING AND PREPARATION METHOD THEREOF

A metal-based/diamond laser composite coating preparation method includes: first selecting high-hardness metal powder and diamond powder of a proper grain size and shape; then uniformly mixing the high-hardness metal powder and diamond powder via a ball-milling method; and finally preparing a composite coating on a substrate by synchronously combining laser texturing technology, laser thermal treatment technology and cold spraying technology. The thickness of the composite coating is greater than 1 mm, and the volume content of diamond in the coating is greater than 45%. A metal-based/diamond laser composite coating is also provided. 1. A preparation method of a metal-based/diamond laser composite coating , comprising steps as follows:1) uniformly mixing a high-hardness metal powder and a diamond powder to form a composite powder via a ball-milling method; a hardness of the high-hardness metal powder is greater than 50 HRC, a shape of the high-hardness metal powder is spherical or spherical-like, a granularity of the powder is 10 μm to 20 μm; the diamond powder is in an irregular shape, and has a granularity of 30 μm to 50 μm;2) reducing the composite powder being, which has been ball milled, in a reduction furnace;3) performing a pre-treatment on a substrate;4) performing a treatment on a surface of the substrate by utilizing a texturing technology of a pulse laser, in order to increase a roughness of the surface; utilizing a cold spraying method assisted with a continuous laser to synchronously deposit a high-hardness metal-based/diamond composite coating on the substrate treated by the pulse laser texturing, wherein, a distance, at which a pulse laser speckle is in front of a sprayed powder speckle in step 4), is less than 15 mm, a continuous laser speckle and the sprayed powder speckle is overlapped, an angle between a continuous laser beam and a cold spraying nuzzle is 20° to 30°, the pulse laser speckle, the continuous laser speckle and the sprayed powder ...

LASER METAL DEPOSITION SYSTEM

The invention relates to a laser metal deposition system, which comprises a feed nozzle (), the tubular wall () of which has external fins () designed to allow heat dissipation by heat exchange with the immediate surroundings of the feed nozzle (). 1. A laser metal deposition system comprising a delivery system adapted to deliver a metal wire to an inlet orifice of a feed nozzle , a feed nozzle comprising a tubular wall defining a cylindrical conduit passing through the feed nozzle along a longitudinal axis , between , on the one hand , an inlet orifice and , on the other hand , an outlet orifice , and a laser head adapted to generate the melting of the metal at the level of the outlet orifice of the feed nozzle ,said tubular wall of the feed nozzle being characterised in that it further comprises a plurality of external fins adapted to allow a heat dissipation by thermal exchange with the immediate surrounding of the feed nozzle.2. The laser metal deposition system of claim 1 , wherein the external fins have an annular shape.3. The laser metal deposition system of claim 2 , wherein the diameter of the external annular fins decreases from the inlet orifice of the feed nozzle to the outlet orifice of the feed nozzle.4. The laser metal deposition system of claim 1 , wherein the external peripheries of the external fins are comprised in a substantially conical shape adapted to allow the circulation of a focused laser beam around the feed nozzle.5. The laser metal deposition system of claim 3 , wherein the external fins have a rectangular cross-section.6. The laser metal deposition system of claim 1 , wherein the feed nozzle is made of metal claim 1 , preferably copper.7. The laser metal deposition system of claim 1 , wherein the number of external fins is less than or equal to six claim 1 , preferably equal to six.8. The laser metal deposition system of claim 1 , wherein the external fins have a thickness along the longitudinal axis between 0.7 and 1.3 millimetres and/ ...

High hard phase fraction non-magnetic alloys

Disclosed herein are embodiments of a non-magnetic iron-based alloy. The alloy can contain high hard phase fractions providing for significant toughness and wear resistance. The alloy can have high austenite content and high toughness in some embodiments. Further, embodiments of the alloy can include a number of large or extremely hard particles.

Flow path member, liquid ejecting apparatus, and production method for flow path member

A flow path member includes a first flow path-forming member made of a material capable of absorbing a laser light and a second flow path-forming member made of a material that has a lower absorbance with respect to the laser light than the first flow path-forming member and having in a portion of an inner surface that at least partially forms a flow path at least one welded portion that is welded to the first flow path-forming member. An outer surface side of the second flow path-forming member that is an opposite side to the inner surface is provided with at least one light blocking portion capable of blocking the laser light and at least one transmitting portion that is capable of transmitting the laser light and that is positioned on an opposite side to the at least one welded portion and the at least one light blocking portion and the at least one transmitting portion are in contact on at least one boundary with each other. At least one external edge of the at least one welded portion is at a position that is shifted by a shift from the at least one boundary to a side toward which the laser light incident on the at least one boundary at an incident angle less than 90 degrees travels.

COATING APPARATUS AND COATING METHOD

A coating apparatus is provided that includes: a mixer configured to generate mixed ceramic powder in which a material which contains an organic compound imparting lubricity to raw ceramic powder whose average particle size is smaller than or equal to 10 μm and acts as an additive is mixed into the raw ceramic powder; a jetting device configured to jet the mixed ceramic powder toward a surface of a base material; and a heating device configured to heat the mixed ceramic powder jetted from the jetting device, and to evaporate the organic compound of the additive contained in the mixed ceramic powder. 1. A coating apparatus , comprising:a mixer configured to generate a mixed ceramic powder in which a material containing an organic compound that imparts lubricity to a raw ceramic powder whose average particle size is smaller than or equal to 10 μm and acting as an additive is mixed into the raw ceramic powder;a jetting device configured to jet the mixed ceramic powder toward a surface of a base material; anda heating device configured to heat the mixed ceramic powder jetted from the jetting device, and to evaporate the organic compound of the additive contained in the mixed ceramic powder.2. The coating apparatus according to claim 1 , wherein the heating device heats the mixed ceramic powder jetted toward the surface of the base material by the jetting device before the jetted mixed ceramic powder reaches the surface of the base material claim 1 , and evaporates the organic compound of the additive contained in the mixed ceramic powder.3. The coating apparatus according to claim 1 , wherein an average particle size of the additive is smaller than or equal to 10 nm.4. The coating apparatus according to claim 3 , wherein the raw ceramic powder contains at least yttria-stabilized zirconia.5. The coating apparatus according to claim 3 , wherein the additive contains globular silica and the organic compound provided on a surface of the globular silica.6. The coating ...

DIRECT DEPOSITION OF METALLIC COATING

A method for coating a part according to an aspect of the disclosure includes the step binding a metallic powder to a section of the part. The metallic powder is then energized which at least partially melts and resolidifies the metallic powder to form a first metallic coating. After the first layer of metallic coating is formed a second layer of metallic coating is deposited on substantially all of the part. 1. A method for coating a part , comprising:binding a metallic powder to a section of the part;energizing the metallic powder to at least partially melt and resolidify the metallic powder to form a first metallic coating; anddepositing a second metallic coating to substantially all of the part.2. The method of claim 1 , wherein the binding includes applying a binder to the part.3. The method of claim 2 , wherein the binding includes depositing the metallic powder on the binder.4. The method of claim 2 , wherein the binder has at least one of a protein claim 2 , starch claim 2 , and a sugar suspended or dissolved therein.5. The method of claim 4 , wherein the protein is gluten.6. The method of claim 1 , wherein the metallic powder comprises a nickel- or cobalt-based alloy.7. The method of claim 1 , wherein the metallic powder is bound to the section of the part by spraying the powder onto the section of the part.8. The method of claim 1 , wherein the part is a first vane of a vane cluster having a plurality of vanes.9. The method of claim 8 , wherein the section of the first vane is an inboard surface of the first vane that is shadowed by a second vane of the vane cluster.10. The method of claim 1 , wherein the second metallic coating has a first thickness on a first section of the part and a second thickness different from the first thickness on a second section of the part.11. The method of claim 1 , wherein a contact metal deposition process energizes the metallic powder.12. The method of claim 11 , wherein the contact metal deposition process is an electro- ...

CLADDED VALVE SEAT, ASSEMBLY, AND METHODS FOR CLADDING SUCH SEAT

This disclosure provides a valve seat having cladded surfaces of high hardness in order to improve the service life of valve seats. The cladded surfaces may include various materials of favorable mechanical properties for mitigating failure mechanisms known for common valve seats (e.g., having a common base metal throughout). In one example, the cladded surfaces are created using an additive manufacturing process, such as laser metal deposition. The cladded surfaces offer advantages including metallurgical bonding, localized low heat input at the laser focus (thus enabling accurate control of temperature and mitigating undesirable heat treatment effects), ductility in middle layers for increasing impact resistance, variable cladding thickness (optionally exceeding 1 mm), increased hardness by material and fusing temperature selections, corrosion resistance, modification of mechanical properties of the same selected material, and allowing for sensor embedment. 1. A valve seat comprising:a base supporting a contact surface for receiving a valve, wherein the contact surface includes a metal strike surface cladded with a layer of fused metal having high hardness properties;a valve guide surface forming an inner surface in the base; andan external surface of the base for press fitting into a fluid cylinder, wherein the external surface of the base exposes a base metal of a hardness property less than the high hardness properties of the layer of fused metal of the metal strike surface of the contact surface.2. The valve seat of claim 1 , wherein the layer of fused metal of the metal strike surface of the contact surface has a hardness no less than 70 HRc.3. The valve seat of claim 1 , wherein the layer of fused metal of the metal strike surface of the contact surface comprises laser melted particles fused on top of the base metal of the base.4. The valve seat of claim 1 , wherein the layer of fused metal of the metal strike surface of the contact surface embeds a sensor.5 ...

METAL-CONNECTED PARTICLE ARTICLES

Apparatus and methods for making metal-connected particle articles. A metal containing fluid is selectively applied to a layer of particles. The metal in the fluid is used to form metal connections between particles. The metal connections are formed at temperatures below the sintering temperature of the particles in the layer of particles. 1. A multi fluid kit for three-dimensional printing comprising:a first fluid comprising metal nanoparticles; anda second fluid comprising a destabilizing agent.2. The multi fluid kit of claim 1 , wherein the metal nanoparticles comprise an iron nanoparticle with a silver coating claim 1 , a nickel nanoparticle with a polyethylene coating claim 1 , copper nanoparticle with silver coating claim 1 , copper (II) sulfate pentahydrate claim 1 , copper (II) nitrate trihydrate claim 1 , iron (II) sulfate heptahydrate claim 1 , iron (II) nitrate pentahydrate claim 1 , copper (II) acetate hydrate claim 1 , iron (II) acetate claim 1 , copper oxide claim 1 , or iron oxide.3. The multi fluid kit of claim 1 , wherein the destabilizing agent comprises sodium chloride.4. The multi fluid kit of claim 1 , wherein the first fluid comprises a first ink vehicle and the second fluid comprises a second ink vehicle.5. The multi fluid kit of claim 1 , wherein the first ink vehicle and the second ink vehicle are the same or different and comprise water claim 1 , co-solvent(s) claim 1 , and/or surfactant(s).6. The multi fluid kit of claim 5 , wherein:the co-solvent(s) include 2-pyrrolidinone, N-methylpyrrolidone, 1-(2-hydroxyethyl)-2-pyrrolidinone, 1,6-hexanediol, 1,5-pentanediol, 2-methyl-1,3-propanediol, triethylene glycol, tetraethylene glycol, tripropylene glycol methyl ether, or combinations thereof; andthe surfactant(s) has a hydrophilic-lipophilic balance (HLB) of less than 10.7. A method of forming metal connections in an intermediate three-dimensional part claim 5 , the method comprising:forming a layer of powder metal particles;selectively ...

METAL-CONNECTED PARTICLE ARTICLES

Apparatus and methods for making metal-connected particle articles. A metal containing fluid is selectively applied to a layer of particles. The metal in the fluid is used to form metal connections between particles. The metal connections are formed at temperatures below the sintering temperature of the particles in the layer of particles. 1. A composition for a three-dimensional printed part comprising:metal particles; anda fluid comprising metal nanoparticles, wherein the metal nanoparticles are uncoated or coated with a coating to prevent or reduce surface oxidation, and wherein the uncoated or coated metal nanoparticles are present in the fluid in a solution or dispersion.2. The composition of claim 1 , wherein the metal nanoparticles in the fluid comprise metal oxides claim 1 , metal salts claim 1 , or metal-organic complexes.3. The composition of claim 1 , wherein the fluid further comprises a reducing agent or a chelating agent.4. The composition of claim 1 , wherein the coating comprises metal claim 1 , polymer claim 1 , or organic or inorganic coating.5. The composition of claim 1 , wherein the metal particles comprise stainless steel powder or copper powder.6. The composition of claim 1 , wherein the metal nanoparticles comprise iron claim 1 , nickel claim 1 , copper claim 1 , copper (II) sulfate pentahydrate claim 1 , copper (II) nitrate trihydrate claim 1 , iron (II) sulfate heptahydrate claim 1 , iron (II) nitrate pentahydrate claim 1 , copper (II) acetate hydrate claim 1 , iron (II) acetate claim 1 , copper oxide claim 1 , or iron oxide claim 1 , or wherein the coating comprises silver or polyethylene.7. The composition of claim 1 , wherein the fluid comprises an ink vehicle comprising water claim 1 , co-solvent(s) claim 1 , and/or surfactant(s).8. A method of forming metal connections in a three-dimensional part claim 1 , the method comprising:forming a layer of metal particles;selectively applying a fluid comprising metal nanoparticles, wherein the ...

Metal-connected particle articles

Apparatus and methods for making metal-connected particle articles. A metal containing fluid is selectively applied to a layer of particles. The metal in the fluid is used to form metal connections between particles, The metal connections are formed at temperatures below the sintering temperature of the particles in the layer of particles.

COMPOSITIONS AND METHODS FOR PRODUCING A LUBRICANT

Compositions for lubricants and methods for producing the same using spherical bismuth powder and spherical copper powder particles are disclosed. In at least one embodiment, the lubricant includes a base oil, a grease, a copper powder, comprising at least one spherical particle, and a bismuth powder, comprising at least one spherical particle. The lubricant can be used as an engine oil, a gear oil, a grease lubricant, or a spray lubricant. When applying the lubricant to an internal combustible engine, the heat and pressure within the engine compresses the lubricant to infuse the copper and bismuth powder particles to the internal surface of the engine. When used in internal combustible engines, the disclosed lubricants deliver outstanding wear resistance, improve gas mileage, extend interval times needed for oil changes, and also reduce engine exhaust emission. 1. A lubricant comprising:a base oil;a grease;a copper powder, comprising at least one spherical particle;a bismuth powder, comprising at least one spherical particle.2. The lubricant of claim 1 , wherein the copper powder is between 0.1% and 60% of the total weight of the lubricant.3. The lubricant of claim 1 , wherein the bismuth powder is between 0.1% and 60% of the total weight of the lubricant.4. The lubricant of claim 1 , wherein the lubricant is an engine oil.5. The lubricant of claim 4 , wherein the base oil comprises a shear stabile polymer and at least one additive.6. The lubricant of claim 1 , wherein the lubricant is a gear oil.7. The lubricant of claim 6 , wherein the base oil comprises a top-treat additive package.8. The lubricant of claim 1 , wherein the lubricant is a grease.9. The lubricant of claim 8 , wherein the grease comprises a synthetic lubricating grease comprising a lithium complex.10. The lubricant of claim 1 , wherein the lubricant is a spray lubricant.11. The lubricant of claim 1 , wherein the at least one spherical particle of the copper powder is about 4.0 μm to 176.0 μm in ...

SLIDING PART WITH WEAR RESISTANT COATING AND METHOD OF FORMING WEAR RESISTANT COATING

A sliding part with a wear resistant coating includes a sliding part, and a wear resistant coating provided on a sliding surface of the sliding part, and made of a cobalt alloy containing chromium and silicon. In the wear resistant coating, oxide particles are dispersed which include an oxide containing chromium and silicon, and have a particle size of 100 μm or less when a cross section of the wear resistant coating is observed using an optical microscope with a magnification of 100 times. 1. A sliding part with a wear resistant coating , comprising:a sliding part; anda wear resistant coating provided on a sliding surface of the sliding part, and made of a cobalt alloy containing chromium and silicon, whereinoxide particles are dispersed in the wear resistant coating, the oxide particles including an oxide which contains chromium and silicon, and having a particle size of 100 μm or less when a cross section of the wear resistant coating is observed using an optical microscope with a magnification of 100 times.2. The sliding part with a wear resistant coating according to claim 1 , whereinwhen a 300 μm×300 μm area in the cross section of the wear resistant coating is observed using the optical microscope with the magnification of 100 times, 10 or more oxide particles with a particle size of 10 μm or less are present therein.3. The sliding part with a wear resistant coating according to claim 1 , whereina Vickers hardness of the wear resistant coating is HV280 or greater.4. The sliding part with a wear resistant coating according to claim 2 , whereina Vickers hardness of the wear resistant coating is HV280 or greater.5. The sliding part with a wear resistant coating according to claim 1 , whereinthe cobalt alloy contains 8.5% by mass or more but 32.5% by mass or less of chromium.6. The sliding part with a wear resistant coating according to claim 2 , whereinthe cobalt alloy contains 8.5% by mass or more but 32.5% by mass or less of chromium.7. The sliding part with a ...

Method for producing a metal part for an aircraft turbo-engine

A method for producing a metal part, the part including, in particular, a first set of elements having a small thickness, and a second set of elements having a large thickness, the method including: forming a peripheral portion of the elements of the second set of elements by selectively melting a powder by scanning the surface of the powder layer with a laser beam or with an electron beam; using the peripheral portion of the elements of the second set of elements as a mould by carrying out an operation of filling an inner area defined by the peripheral portion with liquid metal; cooling the metal part to solidify the inner area defined by the peripheral portion and filled with metal.

Systems and methods for forming a layer onto a surface of a solid substrate and products formed thereby

A method for forming a vehicular brake rotor involving loading a shaped metal substrate with a mixture of metal alloying components and ceramic particles in a dieheating the contents of the die while applying pressure to melt at least one of the metal components of the alloying mixture whereby to densify the contents of the die and form a ceramic particle-containing metal matrix composite coating on the metallic substrate; and cooling the resulting coated product.

METHOD FOR FORMING A COATING ON A SOLID SUBSTRATE, AND ARTICLE THUS OBTAINED

A method for forming a surface coating on at least a part of a solid substrate, comprising a step of cold spraying a flow comprising at least one carrier gas, and particles suitable for deposition on the said substrate, said flow having a speed of more than 350 m/s; The particles are obtained from inorganic materials and have dimensions smaller than 200 μm. One or more mixtures of reaction precursor reagents are present in at least some of the particles. The mixtures are obtained from at least one pair of phases. The mixtures of reaction precursor reagents are characterized by at least one reaction having an adiabatic temperature of at least 800 ° C. 1. Method for forming a surface coating on at least a part of a solid substrate , comprising a step of cold spraying a flow comprising at least one carrier gas , and particles suitable for deposition on the said substrate , said flow having a speed greater than 350 m/s;wherein said particles are obtained from inorganic materials subjected to a high-energy milling treatment and have dimensions smaller than 200 μm;wherein one or more mixtures of reaction precursor reagents are present in at least some of the said particles, the said mixtures being obtained from at least one pair of phases;wherein the mixtures of reaction precursor reagents present in at least some of the particles which strike the substrate are at least one of the following: metals or a mixture of metals, and at least one second reagent chosen from among boron, borides, carbon, carbides, oxides or nitrides,wherein the mixtures of reaction precursor reagents are characterized by at least one reaction having an adiabatic temperature of at least 800° C.2. Method according to claim 1 , characterized in that the mixtures of reaction precursor reagents are characterized by at least one reaction having an adiabatic temperature greater than 1000° C.3. Method according to any one of the preceding claims claim 1 , characterized in that at least 50% by weight of the ...

PIPE CONNECTOR AND METHOD

A method is provided of creating a pipe connector including a first connector member and a second connector member, said connector members being adapted to be connected and disconnected multiple times, the method comprising: a) providing at least one of the connector members with a contact surface; b) depositing particles of a galling resistant metal on each said contact surface; c) at least partially melting the particles of the galling resistant metal by subjecting the particles to a quantity of heat; and d) allowing the molten galling resistant metal to solidify thereby forming a galling resistant metal coating which is metallurgically bonded to the contact surface. The heat may be provided in the form of radiant energy, using a laser beam. 1. A method of creating a pipe connector including a first connector member and a second connector member , said connector members being adapted to be connected and disconnected multiple times , the method comprising:a) providing at least one of the connector members with a contact surface;b) depositing particles of a galling resistant metal on each said contact surface;c) at least partially melting the particles of the galling resistant metal by subjecting the particles to a quantity of heat; andd) allowing the molten galling resistant metal to solidify thereby forming a galling resistant metal coating which is metallurgically bonded to the contact surface.2. The method of claim 1 , wherein said quantity of heat is provided in the form of radiant energy.3. The method of claim 2 , wherein said radiant energy is induced by a laser beam.4. The method of claim 3 , wherein the laser beam is a point laser beam.5. The method of claim 3 , wherein the laser beam is a linear laser beam.6. The method of claim 3 , wherein the connector member has a central longitudinal axis and the contact surface is of substantially circular cross-sectional shape claim 3 , and wherein one of the connector member and the laser beam is rotated relative to ...

ARTICLE

An article includes a substrate and a structure including direct metal laser melted material of predetermined thickness attached to the substrate, the structure formed by providing and depositing a metal alloy powder to form an initial layer having a preselected thickness and shape including at least one aperture, melting the metal alloy powder with a focused energy source, transforming the powder layer to a sheet of metal alloy, sequentially depositing an additional layer of the metal alloy powder over the sheet of metal alloy, the additional preselected shape including an aperture corresponding to the aperture in the initial layer, and melting each additional layer of the metal alloy powder with the focused energy source, increasing the thickness of the sheet and forming at least one aperture having a predetermined profile, the article further including a passageway through the structure including the aperture and a corresponding metering hole. 1. An article comprising:a substrate; and providing a metal alloy powder;', 'depositing the metal alloy powder to form an initial layer having a preselected thickness and a preselected shape including at least one aperture;', 'melting the metal alloy powder with a focused energy source, transforming the powder layer to a sheet of metal alloy;', 'sequentially depositing at least one additional layer of the metal alloy powder over the sheet of metal alloy, each of the at least one additional layers having an additional preselected thickness and additional preselected shape, the additional preselected shape including at least one aperture corresponding to the at least on aperture in the initial layer; and', 'melting each of the at least one additional layers of the metal alloy powder with the focused energy source, increasing the thickness of the sheet and forming at least one aperture having a predetermined profile;, 'a structure including direct metal laser melted material of predetermined thickness attached to the substrate ...

Method of depositing one or more layers of microspheres to form a thermal barrier coating

A method of forming a thermal barrier coating onto a surface of a ferrous alloy or nickel alloy component part involves depositing a layer of hollow microspheres to a surface of the component part or to a previously deposited layer of hollow microspheres through heating and cooling of a metallic precursor setting layer composed of copper, a copper alloy, or a nickel alloy. Once deposited in place, the layer(s) of hollow microspheres are heated to sinter the hollow microspheres to each other and to the surface of the ferrous alloy or nickel alloy component part to form an insulating layer.

Silicon-based repair methods and composition

There is set forth herein a silicon-based patch formulation comprising about 25 to 66 percent by volume of a solvent; about 4 to 10 percent by volume of a silicon-comprising binding material; and about 30 to 65 percent by volume of a patching material, the patching material comprising particles having one or more non-actinide Group IIIA elements, wherein a molar ratio of the one or more non-actinide Group IIIA elements to silicon within the patch formulation is about 0.95 to 1.25.

MATERIAL DEPOSITION USING POWDER AND FOIL

The loss of aluminum content during the laser () deposition of superalloy powders () is accommodated by melting pure aluminum foil () with the superalloy powder to increase a concentration of aluminum in the melt pool () so that the resulting layer of deposited material () has a desired elemental composition Foils, screens or strips of any material may be melted with powders to achieve any desired cladding composition, including a graded composition across a thickness of a clad layer (). 1. A method of material deposition comprisingdisposing both powdered metal and metal foil over a substrate surface,melting the powdered metal and metal foil with an energy beam to form a melt pool, andallowing the melt pool to solidify to form a layer of deposited material on the substrate surface.2. The method of claim 1 , further comprisingdisposing powdered flux material with the powdered metal and metal foil over the substrate surface;melting the powdered flux material with the powdered metal and metal foil to form a layer of slag on the melt pool, andallowing the layer of slag to solidify with the melt pool; andremoving the layer of slag to reveal the layer of deposited material3. The method of claim 2 , wherein the powdered metal comprises a superalloy material claim 2 , the metal foil comprises an elemental constituent of the superalloy material claim 2 , and the energy beam comprises a laser beam.4. The method of claim 3 , further comprising disposing the powdered metal and metal foil over the substrate surface as a package.5. The method of claim 1 , further comprising positioning the metal foil onto the substrate surface and then depositing the powdered metal over the metal foil6. The method of claim 1 , further comprising disposing the metal foil within a layer of the powdered metal over the substrate surface.7. The method of claim 1 , further comprising disposing the metal foil over a layer of the powdered metal on the substrate surface.8. The method of claim 2 , further ...

Method for managing quality of laser cladding processing, and laser cladding processing device

Provided are a method for managing the quality of laser cladding processing and a laser cladding processing device by which the quality of a cladding layer formed on a processing portion of a workpiece can be managed by a simple configuration and reliably while suppressing manufacturing cost. The quality of the cladding layer is managed based on the intensity of infrared light S generated when metal powder P discharged toward laser beam R is melted in the air by the laser beam R.

CLADDING COMPOSITION WITH FLUX PARTICLES

The present disclosure is related to a cladding composition. The cladding composition may include cladding powder particles and flux particles. The flux particles may have an average particle size of less than about 40 μm, and more than about 50% of the flux particles may adhere to the surfaces of the cladding powder particles. 1. A cladding composition , comprising:cladding powder particles; and the flux particles have an average particle size of less than about 40 μm; and', 'more than about 50% of the flux particles adhere to surfaces of the cladding powder particles., 'wherein, 'flux particles,'}2. The cladding composition of claim 1 , wherein the cladding powder particles have an average particle size of about 20 μm to 200 μm.3. The cladding composition of claim 1 , wherein the cladding powder particles are fabricated from at least one of a tool steel claim 1 , a nickel based alloy claim 1 , a cobalt based alloy claim 1 , a silver based alloy claim 1 , a copper based alloy claim 1 , aluminum claim 1 , or a carbide in a metal matrix.4. The cladding composition of claim 3 , wherein the cladding powder particles include aluminum.5. The cladding composition of claim 1 , wherein the flux particles include at least one salt claim 1 , wherein the at least one salt includes an alkaline metal or alkaline earth metal cation and a halogen anion.6. The cladding composition of claim 5 , wherein the cation of the at least one salt is selected from the group consisting of calcium claim 5 , magnesium claim 5 , and sodium.7. The cladding composition of claim 1 , wherein the flux particles make up 1-5% of a total weight of the cladding composition.8. The cladding composition of claim 1 , Wherein the cladding composition includes a flow mobility of greater than about 20 g/min when passed through a tube with an internal diameter of about 4 mm.9. A method of making a cladding composition claim 1 , comprising:mixing cladding powder particles, flux particles, and a liquid to form a ...

STACK FORMING APPARATUS AND MANUFACTURING METHOD OF STACK FORMATION

A stack forming apparatus according to embodiments comprises a nozzle and a controller. The nozzle is configured to selectively inject more than one kind of material to a target and to apply laser light to the injected material to melt the material. The controller configured to control the kind and supply amount of material to be supplied to the nozzle. 1. A manufacturing method of a stack formation , the method comprising:injecting a first material to a target from a first nozzle;applying laser light to the first material to melt the injected first material;injecting a second material to the target from a second nozzle;applying laser light to the second material to melt the injected second material; andremelting the first material and the second material on the target.2. The manufacturing method of the stack formation according to claim 1 , wherein the second material is attached to the first material on the target.3. The manufacturing method of the stack formation according to claim 1 , comprising changing the ratio between the first material and the second material to form a layer on the layer of the material formed on the target.4. The manufacturing method of the stack formation according to claim 1 , comprisingmeasuring the shapes of the first material and the second material on the target; andpartly removing the first material and the second material on the target in accordance with a measurement result by the measurement device.5. The manufacturing method of the stack formation according to claim 4 , comprisingcomparing the shape measured by the measurement device with a threshold which is stored in a storage unit by a controller and which is the shape of a stack formation to be formed on the target; andcomparing the shape measured by the measurement device with the threshold, and partly removing the first material and the second material on the target when a part of the shape is different from the threshold.6. A manufacturing method of a stack formation ...

Method of inducing porous structures in laser-deposited coatings

A layer of a powdered material ( 4 ) is heated with an energy beam ( 10 ) such that at least one gas-generating agent ( 8 ) reacts to form at least one gaseous substance ( 14 ) to produce a void-containing coating ( 16 ) adhered to the surface of a substrate ( 2 ). The powdered material may contain a metallic material, a ceramic material, or both, and may also contain at least one of a flux material ( 32 ) containing the gas-generating agent and an exothermic agent ( 64 ). The heating may occur using a laser beam and may induce a melting or sintering of the powdered material to produce the void-containing coating. A gas turbine engine component exhibiting improved thermal and mechanical properties may be formed to include the void-containing coating, which may take the form of a bond coating, a thermal barrier coating, or both.

Laser cladding method

In a laser cladding method, a laser beam is emitted from a semiconductor laser to melt alloy powder for laser cladding on the surface of a hydraulic support column. The semiconductor laser is a laser functioning with semiconductor material as gain medium and lighting by means of semiconductor material transition among energy bands. The hydraulic support column is mainly made of alloy steel of 27 SiMn. With the laser cladding method, the energy absorption efficiency of laser beam can be increased, and the energy utilization efficiency is increased, so that the power consumption is saved reduced.

COATING PROCESS AND COATED MATERIALS

The present invention relates to a method and an apparatus for coating large area solid substrates with metal based alloys or compounds by contacting the substrate surface with an unoxidised metal powders formed by in situ reaction of a metal halide and a reducing agent. The method is suitable for coating large area substrates such as flakes, powder, beads, and fibres with metal based alloys or compounds starting from low-cost chemicals such as metal chlorides. The method is particularly suited for production of substrates coated with metals, alloys and compounds based on Zn, Sn, Ag, Co, V, Ni, Cr, Fe, Cu, Pt, Pd, Ta, Nb, Rh, Ru, Mo, Os, Re and W. 1. A method for depositing metal-based coatings on a particulate substrate , including:a) mixing the particulate substrate with an uncoated metal-based powder to form a mixture; the metal-based powder being formed by exothermically reducing a precursor powder comprising a chloride or sub-chloride of one or more of Zn, Sn, Ag, Co, V, Ni, Cr, Fe, Cu, Pt, Pd, Ta, Nb, Rh, Ru, Mo, Os, Re and W by contacting with a reducing agent; andb) heating the mixture to produce a coating on said particulate substrate.2. The method according to claim 1 , wherein said mixing occurs concurrently with the formation of the uncoated metal-based powder3. The method according to claim 1 , wherein the reducing agent is selected from one or more of Na claim 1 , K claim 1 , Ca claim 1 , Mg claim 1 , or Al.4. The method according to claim 1 , wherein the metal chloride is selected from chlorides claim 1 , fluorides claim 1 , bromides or iodides.5. The method for forming a coating on a substrate according to claim 1 , comprising:immersing a substrate powder in a reactant mixture comprising an uncoated metallic powder and metal chlorides and a reducing agent and optionally any coating additives, and heating the resulting mixture at temperatures between 400° C. and 800° C. to induce reactions between the substrate surface and the said mixture and form a ...

Forging head, forging device and additive manufacturing system

A forging head for additive manufacturing, comprising a base portion and a forging portion. The forging portion extends from the base portion for forging a cladding layer during formation of the cladding layer by additive manufacturing. The forging head further comprising a through hole which is formed through the base portion and the forging portion, for at least one of an energy bean and an additive material to pass through during formation of the cladding layer.

REINFORCING STRUCTURAL COMPONENTS

A method for manufacturing structural steel components with local reinforcement is provided. The method comprises selecting at least a zone of the component to be reinforced, providing a steel blank and deforming the blank in a press tool to form a product, wherein the blank and/or the product comprises a groove in the zone to be reinforced, the groove comprising an inner surface and an outer surface. The method further comprises depositing a reinforcement material on the inner surface of groove and locally heating the reinforcement material and the groove of the steel blank or product, to mix the melted reinforcement material with the melted portion of the steel blank or product. 1. A method for manufacturing structural steel components with local reinforcement , the method comprising:selecting at least a zone of the component to be reinforced;providing a steel blank;deforming the blank in a press tool to form a product; andwherein the blank and/or the product comprises a groove in the zone to be reinforced and wherein the groove comprises an inner surface and an outer surface; wherein the method further comprisesdepositing a reinforcement material on the inner surface of the groove;locally heating the reinforcement material and the groove of the steel blank or product to mix the melted reinforcement material with the melted portion of the steel blank or product.2. The method according to claim 1 , wherein deforming the blank comprises hot deforming and cooling the blank to form the product.3. The method according to or claim 1 , comprising making the groove in the blank.4. The method according to claim 3 , wherein the groove is made in the blank in a first cold deformation process.5. The method according to or claim 3 , further comprising making the groove before or during cutting the blank from a steel coil.6. The method according to or claim 3 , further comprising making the groove in the product.7. The method according to claim 2 , wherein the hot deforming ...

Method for reinforcing rail by laser and auxiliary heat source efficient hybrid cladding

The disclosure discloses a method for reinforcing a rail by laser and auxiliary heat source efficient hybrid cladding. The laser and the auxiliary heat source simultaneously apply on a region to be cladded of a rail surface. The laser serves as a main heat source to enable simultaneous and rapid fusion of an added metal powder and partial substrate material in the rail surface to form a molten pool. The auxiliary heat source moves with the laser heat source in the same direction at the same speed, and performs synchronous preheating and/or post-heating on the laser molten pool, the heat-affected zone and the surface layer of the rail substrate to reduce the temperature gradient, thereby reducing the cooling rate, and avoiding martensite transformation and cracking in the heat-affected zone.

HYBRID ADDITIVE MANUFACTURING METHOD FOR ROTOR

A method of manufacturing a rotor having a hub and a plurality of vanes extending therefrom includes providing the hub, the hub having an outer surface, and depositing a laser cladding on the hub outer surface to form the plurality of vanes. 1. A method of manufacturing a rotor having a hub and a plurality of vanes extending therefrom , the method comprising:providing the hub, the hub having an outer surface; anddepositing a laser cladding on the hub outer surface to form the plurality of vanes.2. The method of claim 1 , wherein the step of providing the hub comprises:providing a block of material from which the hub will be formed; andmachining the block of material to form the hub.3. The method of claim 1 , wherein the step of depositing a laser cladding comprises:depositing a first layer of laser cladding on the hub outer surface;subsequently machining the first layer;depositing a second layer of laser cladding on the machined first layer; andsubsequently machining the second layer to form a first vane of the plurality of vanes on the hub outer surface.4. The method of claim 1 , wherein the step of depositing a laser cladding comprises:depositing a first layer of laser cladding on a first location of the hub outer surface;subsequently machining the first layer and depositing a second layer of laser cladding on a second location of the hub outer surface;subsequently machining the second layer and depositing a third layer of laser cladding on the machined first layer;subsequently machining the third layer of laser cladding to form a first vane of the plurality of vanes on the hub outer surface, and depositing a fourth layer of laser cladding on the machined second layer; andsubsequently machining the fourth layer of laser cladding to form a second vane of the plurality of vanes on the hub outer surface.5. The method of claim 4 , further comprising rotating the hub between the steps of depositing a first layer of laser cladding on a first location of the hub outer ...

SYSTEM AND METHOD FOR APPLYING ABRASIVE GRIT

A method for forming an abrasive surface includes utilizing an energy source to form a melt pool layer in a substrate and applying abrasive grit into the melt pool layer. A method for forming an abrasive surface including applying an abrasive grit to a substrate and utilizing an energy source to form a melt pool layer in the substrate without disturbing the abrasive grit such that the abrasive grit becomes embedded in the melt pool layer. 1. A method for forming an abrasive surface , comprising:utilizing an energy source to form a melt pool into a substrate; andapplying an abrasive grit into the melt pool, the melt pool of a thickness less than the grit size of the abrasive grit.2. The method as recited in claim 1 , wherein the abrasive grit includes cubic boron nitride (cBN).3. The method as recited in claim 1 , wherein the energy source includes a laser.4. The method as recited in claim 1 , wherein the energy source includes magnetic induction.5. The method as recited in claim 1 , wherein the melt pool is 20 to 200 μm in depth.6. The method as recited in claim 1 , wherein the substrate is an airfoil.7. The method as recited in claim 6 , wherein the substrate is a tip of the airfoil.8. The method as recited in claim 1 , wherein applying the abrasive grit includes varying a concentration of the abrasive grit.9. The method as recited in claim 1 , wherein applying the abrasive grit includes varying a type of abrasive grit.10. The method as recited in claim 1 , wherein applying the abrasive grit includes applying the abrasive grit in a predetermined pattern.11. A method for forming an abrasive surface claim 1 , comprising:applying an abrasive grit to a substrate; andutilizing an energy source to form a melt pool in the substrate without disturbing the abrasive grit as the abrasive grit does not obscure the energy source such that the abrasive grit becomes partially embedded in the melt pool to form the abrasive surface, the melt pool of a thickness less than the grit ...

CALCIUM-MAGNESIUM-ALUMINO-SILICATE RESISTANT THERMAL BARRIER COATINGS

A method for forming a coating system on a component includes depositing a reactive layer with predetermined CMAS reaction kinetics on at least a portion of a thermal barrier coating. The method also includes activating the reactive layer with a scanning laser. A component, such as a gas turbine engine component, includes a substrate, a thermal barrier coating and a reactive layer. The thermal barrier coating is deposited on at least a portion of the substrate. The reactive layer is deposited on at least a portion of the thermal barrier coating. The reactive layer has predetermined CMAS reaction kinetics activated by laser scanning. 110-. (canceled)11. A component subjected to elevated temperature during operation comprising:a substrate;a thermal barrier coating deposited on at least a portion of the substrate; anda reactive layer deposited on at least a portion of the thermal barrier coating, the reactive layer having predetermined CMAS reaction kinetics activated by laser scanning.12. A component as recited in claim 11 , wherein the reactive layer includes a CMAS powder mixture claim 11 , wherein the powder mixture includes chemically conditioned CMAS and YZrO.13. A component as recited in claim 11 , wherein at least a portion of the reactive layer and a portion of the thermal barrier coating are fused when the reactive layer is activated by laser scanning.14. A component as recited in claim 11 , further comprising a bond coat between the substrate and the thermal barrier coating.15. A component as recited in claim 11 , wherein the thermal barrier coating includes a stabilized zirconia.16. A component as recited in claim 11 , wherein the thermal barrier coating includes an stabilized zirconia having at least one crystallization promoting material selected from the group consisting of LaZrO claim 11 , GDZrO claim 11 , AlO claim 11 , TiO claim 11 , YZrO claim 11 , and mixtures thereof.17. A component as recited in claim 11 , wherein the reactive layer includes at ...

METHOD FOR APPLYING AN ABRASIVE TIP TO A HIGH PRESSURE TURBINE BLADE

A process for coating a gas turbine blade with an abrasive. The process includes positioning the gas turbine blade in a nest, the gas turbine blade comprising a tip having a top surface; prepositioning a metal powder material on the top surface; fusing the metal powder material to the top surface by use of a laser to form a base layer on the top surface; prepositioning an abrasive composite material on the base layer opposite the top surface; fusing the abrasive composite material to the base layer by use of the laser to form an abrasive coating on the base layer; and removing the gas turbine blade from the nest. 1. A process for coating a gas turbine blade with an abrasive , said process comprising:positioning said gas turbine blade in a nest, said gas turbine blade comprising a tip having a top surface,prepositioning a metal powder material on said top surface;fusing said metal powder material to said top surface by use of a laser to form a base layer on said top surface;prepositioning an abrasive composite material on said base layer opposite said top surface;fusing said abrasive composite material to said base layer by use of said laser to form an abrasive coating on said base layer; andremoving said gas turbine blade from said nest.2. The process of claim 1 , wherein said abrasive composite material comprises a corrosion resistant metal powder material and an abrasive material.3. The process of claim 1 , wherein said abrasive coating comprises a metal matrix surrounding said abrasive material.4. The process of claim 1 , further comprising:using a binding agent to fix said metal powder material in place prior to said fusing.5. The process of claim 1 , further comprising:using a force of gravity to fix said metal powder material in place prior to said fusing.6. The process of claim 1 , wherein said fusing of said metal powder material to said top surface comprises passing a laser beam over said metal powder material and fusing said metal powder material and ...

New product and use thereof

A new pre-alloyed metal based powder, intended to be used in surface coating of metal parts. The powder is deposited using e.g. laser cladding or plasma transfer arc welding (PTA), or thermal spray (e.g. HVOF). The powder is useful for reducing friction and improving wear reducing properties of the deposited coating. Such coatings may also improve machinability. As friction or wear reducing component, inclusions of manganese sulphide or tungsten sulphide in the pre-alloyed powder may be used.

DISK BLADE WITH HARD FACE AND SEED DISK OPENER INCORPORATING SAME

A disk such as but not limited to a seed opener disk is provided along with a seed opener assembly for a planter, that comprises a hard face coating along the beveled surface region. The hard face coating is preferably a laser cladding that forms a metallurgical bond with the underlying steel base material. 1. An opener disk , comprising:a steel disk body defining a central aperture and a circular blade edge at an outer periphery thereof, the steel disk body comprising a first flat side and a second side on opposite sides thereof, each of the first flat side and a second side extending from the central aperture to the circular blade edge, the second side including a circular beveled surface and a circular inner flat region, the circular beveled surface extending from the circular blade edge toward the central aperture and intersecting the circular inner flat region; anda hard face coating on the circular beveled surface.2. The opener disk of claim 1 , wherein the hard face coating is applied along the second side such that the hard face coating does not extend around the circular blade edge onto the first flat side.3. The opener disk of claim 1 , wherein first side is completely free of the hard face coating.4. The opener disk of claim 1 , wherein the hard face coating extends to and intersects the circular blade edge.5. The opener disk of claim 1 , wherein the hard face coating extends over an outer circular portion of the inner flat region and over a corner between the circular beveled surface and the circular inner flat region.6. The opener disk of claim 1 , wherein the hard face coating extends over a limited portion of the second side claim 1 , wherein the opener disk has a diameter of between 30 and 40 centimeters claim 1 , and wherein the hard face coating has an innermost location between 3 millimeters and 30 millimeters radially inward from the circular blade edge.7. The opener disk of claim 1 , wherein the hard face coating forms a raised plateau region ...

Metal Coating Method

This invention discloses a metal coating method whereby an abrasion resistant and wear resistant coating is first applied to the metal object, the coated metal object is then fused onto the metal object and the resulting coated metal object is more abrasion resistant and wear resistant while retaining the metal object's original shape.

LASER THERMAL COMBINATION REMANUFACTURING METHOD FOR DAMAGED METAL PART

A remanufacturing method for a metal part having a damage. The damage groove is divided into a number of levels, and the groove bottom is treated by absorption layer-free laser shock peening to remove surface impurities and to refine surface-layer crystal grains. Then a cladding layer is formed by laser cladding. The process is repeated until the groove is completely filled by the cladding layer to higher than the surface of the metal part and the cladding layer higher than the surface is cut by a mechanical processing and polished, and the upper surface of the laser cladding layer is subjected to large-area overlapped laser shock peening. 18-. (canceled)9. A method for repairing a scratch in a surface of a metal component , said method comprising the steps of:dividing the scratch into multiple layers;using laser shock peening (LSP) with laser cladding (wC) LSPwC to treat a bottom of the scratch, remove surface impurities, and refine the surface grains;using laser cladding to form a cladding coating with a given thickness on the scratch;treating each layer by LSPwC first and then laser cladding, until the scratch is completely filled by a cladding coating which extends over a top surface of metallic component;mechanically processing to remove the cladding coating higher than the top surface of metallic component;grinding and polishing the top surface of the cladding coating; andoverlapping LSP the top surface of the cladding coating.10. The method of claim 9 , wherein the thickness of the laser cladding coating is smaller than the affected depth of LSP on the cladding coating claim 9 , and the number of cladding coatings formed is based on a depth of the scratch and the thickness of the single laser cladding11. The method of claim 9 , wherein LSPwC is used to preprocess the surface layer at the scratch bottom claim 9 , in which there is no absorbent material applied on the surface of the component claim 9 , and flowing water is used as transparent confining layer.12 ...

Nonstick Utensil and Manufacturing Method Thereof

The present invention relates to the technical field of cooking utensils, and in particular, to a nonstick utensil and its method of manufacturing. The nonstick utensil comprises a utensil substrate and a nonstick layer covering an inner surface of the utensil substrate; the material of the nonstick layer comprises black titanium dioxide. In these method of the present invention, an inner surface of a substrate of the nonstick utensil is covered with a material comprising black titanium dioxide by means of hot spraying, cold spraying or plasma spraying, so that a black titanium dioxide nonstick layer is formed. Compared to the prior art, instead of using a coating material, the present invention achieves the objective of nonstickness by forming nonstick layer comprising black titanium dioxide on a surface of a substrate, thanks to the low surface energy characteristic of black titanium dioxide. 1. A nonstick utensil , the nonstick utensil comprising:utensil substrate; and,a nonstick layer covering an inner surface of the utensil substrate;wherein, the material of the nonstick layer comprises black titanium dioxide.2. The nonstick utensil according to claim 1 , wherein claim 1 , the material of the nonstick layer comprises 60 to 99.5% of black titanium dioxide and 40 to 0.5% of a ceramic material and/or metal or nonmetal other than the black titanium dioxide.3. The nonstick utensil according to claim 2 , wherein claim 2 , the metal is one or more of: zinc and its alloys; titanium and its alloys; chromium and its alloys; nickel and its alloys; cobalt and its alloys; copper and its alloys; zirconium and its alloys; yttrium and its alloys; molybdenum and its alloys; vanadium and its alloys; silver and its alloys.4. The nonstick utensil according to claim 2 , wherein claim 2 , the nonmetal is one or more of: graphite claim 2 , boron claim 2 , silicon claim 2 , phosphorus claim 2 , titanium carbide claim 2 , titanium nitride claim 2 , titanium diboride claim 2 , silicon ...

"Boring Bar with Improved Stiffness"

A tunable or tuned boring bar having increased stiffness is provided. Increasing the stiffness of the bar increases the natural frequency, thereby reducing directional deformation of the bar during use. The tunable boring bar includes a distal portion configured to support a tool, a proximal portion configured for attachment to a support structure of a metalworking machine, and a body, which is at least partially tubular, extending between the proximal portion and the distal portion. The tubular portion of the body has an elongated cylindrical cavity. The body of the boring bar includes a core layer formed from a first material and a coating layer formed from a second material. The second material has a higher modulus of elasticity than the first material. In certain configurations, the coating layer is bonded to the core layer by cladding, welding, chemical adhesives, chemical vapor deposition, pulsated plasma diffusion, or combinations thereof.

METHOD OF MANUFACTURING NON-SLIP PLATE AND NON-SLIP PLATE MANUFACTURED THEREBY

Disclosed are a method of manufacturing a non-slip plate and a non-slip plate manufactured thereby. The method includes preparing a base metal plate for joint design, washing and surface treatment, preparing a non-slip material, adhering the non-slip material to the bonding surface of the base metal plate to form a protrusion, and brazing the base metal plate having the non-slip material adhered thereto in a brazing furnace. The non-slip plate is applied to vehicles to impart non-slip performance thereto, and can be semi-permanently used. 1. A method of manufacturing a non-slip plate , comprising:preparing a base metal plate for joint design, washing and surface treatment;preparing a non-slip material;adhering the non-slip material to a bonding surface of the base metal plate to form a protrusion; andbrazing the base metal plate having the non-slip material adhered thereto in a brazing furnace.2. The method of claim 1 , wherein the base metal plate comprises any one selected from the group consisting of stainless steel claim 1 , iron claim 1 , copper claim 1 , brass claim 1 , and alloy steel.3. The method of claim 1 , wherein the non-slip material is configured such that a tungsten powder claim 1 , at least one metal powder selected from the group consisting of silver claim 1 , copper claim 1 , zinc claim 1 , cadmium claim 1 , phosphorus claim 1 , nickel claim 1 , manganese claim 1 , tin claim 1 , indium claim 1 , gold claim 1 , silicon claim 1 , palladium claim 1 , and lithium claim 1 , and a solvent are mixed.4. The method of claim 1 , wherein the non-slip material is configured such that 95 to 97 wt % of a tungsten powder and 3 to 5 wt % of a nickel powder are mixed and diluted with a solvent.5. The method of claim 1 , wherein the brazing comprises primary firing at 500 to 700° C. in a brazing furnace in a reduction gas atmosphere and secondary firing in the brazing furnace at a temperature increased to 900 to 1350° C.6. The method of claim 5 , wherein the ...

LASER CLAD LAYER FORMING METHOD AND LASER CLADDING DEVICE

A laser clad layer forming method includes a partitioning process of partitioning a formation-scheduled portion for a laser clad layer on a peripheral surface of a workpiece into areas; a phase determining process of holding the workpiece such that an axial direction thereof is horizontal and determining a phase of the workpiece such that a direction of a normal to the peripheral surface of the workpiece in one area is within a predetermined angle range with respect to a vertical upward direction; and a forming process of irradiating a powder with a laser beam while supplying the powder to the one area in a state in which the phase of the workpiece is determined and melting the powder to form a bead. The laser clad layer is formed by repeating the phase determining process and the forming process on the areas to form the beads in the whole formation-scheduled portion. 1. A laser clad layer forming method of irradiating a powder of a metal with a melting point of 500° C. or lower with a laser beam from a laser irradiation unit while supplying the powder to a peripheral surface of a workpiece around a central axis of the workpiece and forming a laser clad layer of the metal on the peripheral surface of the workpiece using the powder that is molten , the laser clad layer forming method comprising:a partitioning process of partitioning a formation-scheduled portion for the laser clad layer on the peripheral surface of the workpiece into a plurality of areas each of which has an angle equal to or less than 90 degrees in a circumferential direction;a phase determining process of holding the workpiece such that an axial direction thereof is horizontal and determining a phase of the workpiece such that a direction of a normal to the peripheral surface of the workpiece in one area of the plurality of areas is within a predetermined angle range with respect to a vertical upward direction; anda forming process of irradiating the powder with the laser beam while supplying the ...

Corrosion and Wear Resistant Overlay, Method for Forming Corrosion and Wear Resistant Overlay, and Corrosion and Wear Resistant Valve

Intended is to improve the corrosion resistance of an overlay used in a nuclear power plant, and to reduce dissolution of cobalt from an overlay. The corrosion and wear resistant overlay is formed along a surface of a base by laser lamination modeling, and is configured from a plurality of metal layers , and of a Co-base alloy. The thickness of carbide eutectics that precipitate in the metal layers , and is the largest in the metal layer closest to the base , and is gradually smaller in the metal layers , and farther away from the base . The intensity of the laser beam applied to form layers by laser lamination modeling is adjusted so that the carbide eutectics that precipitate in at least the outermost metal layer have a controlled size of 10 μm or less. 1. A method for forming a corrosion and wear resistant overlay , the method comprising:a first step of heating and melting a Co-base alloy powder to form a Co-base alloy layer; anda second step of forming another Co-base alloy layer on a surface of the Co-base alloy layer by repeating the first step;wherein an amount of heat input to heat and melt the Co-base alloy powder is reduced in repeatedly forming the Co-base alloy layer in the first step and the second step; andwherein the Co-base alloy layer is formed by heating and melting the Co-base alloy powder deposited beforehand.2. The method according to claim 1 , wherein the Co-base alloy layer is formed such that a carbide eutectic that precipitates at a boundary between crystals of a dendrite structure of a Co-base alloy in at least an outermost Co-base alloy layer has a maximum thickness of 10 um or less in the first step and the second step.3. The method according to claim 1 , wherein the Co-base alloy layer is formed by using any one of a laser beam claim 1 , an arc discharge claim 1 , or a charged-particle beam in a vacuum.4. The method according to claim 1 , wherein the Co-base alloy layer is formed on a surface of a base comprising a carbon steel or a ...

DEPOSITION HEAD FOR ADDITIVE MANUFACTURING

A method for additively manufacturing a three-dimensional article includes depositing feed materials through a material feeder to a growth surface. The feed materials include at least one of a first feed material, a second feed material and a third feed material. At least one of the first feed material, the second feed material and the third feed material is different. The method also includes exposing the feed materials to electromagnetic energy to form a melt pool. The melt pool includes at least one of a molten first feed material, a molten second feed material and a molten third feed material. The method further includes solidifying the melt pool. 1. A method for additively manufacturing a three-dimensional article , said method comprising:depositing feed materials through a material feeder to a growth surface, wherein said feed materials comprises at least one of a first feed material, a second feed material and a third feed material, and wherein at least one of said first feed material, said second feed material and said third feed material is different;exposing said feed materials to electromagnetic energy to form a melt pool, wherein said melt pool comprises at least one of a molten first feed material, a molten second feed material and a molten third feed material; andsolidifying said melt pool.2. The method of further comprising adjusting a size of said melt pool.3. The method of wherein:said electromagnetic energy comprises a laser beam emitted from a laser located within a housing of a deposition head; andexposing said feed material to said electromagnetic energy to form said melt pool comprises heating at least one of said first feed material, said second feed material and said third feed material with said laser beam.4. The method of wherein exposing said feed materials to said electromagnetic energy to form said melt pool further comprises selectively positioning an optic claim 3 , located within said housing claim 3 , to focus said laser beam.5. The ...

CALCIUM-MAGNESIUM-ALUMINO-SILICATE RESISTANT THERMAL BARRIER COATINGS

A method for forming a coating system on a component includes depositing a reactive layer with predetermined CMAS reaction kinetics on at least a portion of a thermal baffler coating. The method also includes activating the reactive layer with a scanning laser. A component, such as a gas turbine engine component, includes a substrate, a thermal baffler coating and a reactive layer. The thermal baffler coating is deposited on at least a portion of the substrate. The reactive layer is deposited on at least a portion of the thermal baffler coating. The reactive layer has predetermined CMAS reaction kinetics activated by laser scanning. 1. A method for forming a coating system on a metallic component comprising:depositing a reactive layer with predetermined CMAS reaction kinetics on at least a portion of a thermal barrier coating; andactivating the reactive layer with a laser.2. A method as recited in claim 1 , further comprising forming the thermal barrier coating from a stabilized zirconia.3. A method as recited in claim 1 , further comprising forming the thermal barrier coating from a stabilized zirconia having at least one crystallization promoting material selected from the group consisting of LaZrO claim 1 , GdZrO claim 1 , AlO claim 1 , TiO claim 1 , YZrO claim 1 , and mixtures thereof.4. A method as recited in claim 1 , wherein activating the reactive layer includes fusing the reactive layer and at least a portion of the thermal barrier coating.5. A method as recited in claim 1 , further comprising depositing a bond coat on a surface of a substrate followed by depositing the thermal barrier coating onto the bond coat.6. A method as recited in claim 1 , wherein depositing the reactive layer includes depositing a thin film of chemically conditioned CMAS powder over the thermal barrier coating claim 1 , wherein activating the reactive layer with a laser completes an additive manufacturing process bonding the reactive layer to the thermal barrier coating.7. A method ...

Liquid binder for refractory coatings of ferrous metals

A dry composition comprising 2 to 30 weight percent R 2 O (wherein R 2 O is an alkali metal oxide, K 2 O, Na 2 O, Li 2 O or mixtures thereof); 10 to 74 weight percent SiO 2 ; and 23 to 79 weight percent B 2 O 3 . Aqueous solutions and/or colloidal suspensions (thus referred to as solution-suspensions) are used to blend to give a liquid-binder which, on drying, contains the composition within the range given above in the R 2 O—SiO 2 —B 2 O 3 system. The dry composition is mixed with sufficient H 2 O to form the solution-suspensions. As described herein H 2 O may also be present in some additional additive.

METHOD FOR MANUFACTURING CERAMIC STEEL SHEET

The present invention relates to a method for manufacturing a ceramic steel sheet and, more particularly, to a method for coating ceramic on one surface of a steel sheet, the method comprising the steps of: (a) installing a mold made of a refractory material for a thermite reaction on one surface of a plate-shaped steel sheet; (b) injecting a thermite mixture (M) as a reaction material into the mold so as for the thermite mixture to be uniformly distributed at a predetermined height on one surface of the steel sheet; (c) injecting an ignition material (I) onto the thermite mixture (M) after the step (b) and then igniting the ignition material (I) to induce a thermite reaction of the thermite mixture (M); and (d) pressing a press machine against the thermite mixture (M) in a molten state after the step (c) to form a ceramic layer having a predetermined shape on one surface of the steel plate. 1. A method for coating one surface of a steel sheet with ceramic , comprising the steps of:{'b': '200', '(a) installing a mold made () of a refractory material for a thermite reaction on one surface of a plate-shaped steel sheet;'}{'b': 200', '100, '(b) introducing a thermite mixture (M) as a reaction material into the mold () so as to be uniformly distributed at a predetermined height on one surface of the steel sheet ();'}(c) introducing an ignition material (I) to the thermite mixture (M) after the step (b) and then igniting the ignition material (I) to induce the thermite reaction of the thermite mixture (M); and{'b': '300', '(d) pressing the thermite mixture (M) in a molten state with a press machine () after the step (c) to form a ceramic layer having a predetermined shape on the one surface of the steel plate.'}2. The method of claim 1 , wherein the thermite mixture (M) for the reaction material comprises iron oxide powder having a size of 10 to 30 mesh claim 1 , aluminum powder having a size of 30 to 80 mesh claim 1 , and titanium carbide powder having a size of 5 to 40 ...

Metal-connected particle articles

Apparatus and methods for making metal-connected particle articles. A metal containing fluid is selectively applied to a layer of particles. The metal in the fluid is used to form metal connections between particles. The metal connections are formed at temperatures below the sintering temperature of the particles in the layer of particles.

Laser-Produced Porous Surface

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant. 1. (canceled)2: An orthopedic implant comprising:porous metallic first and second structures, at least a portion of either one or both of the first and second structures being defined by polygonal porous cells; andan intermediate structure attached to and located between the first and the second structures, the intermediate structure having a different porosity than the first and the second structures.3: The orthopedic implant of claim 2 , wherein the first structure includes pores having a pore size that exceeds 80 μm in diameter.4: The orthopedic implant of claim 3 , wherein the pores of the first structure have a maximum pore size that is less than 800 μm in diameter.5: The orthopedic implant of claim 3 , wherein the second structure includes pores having a pore size that exceeds 80 μm in diameter claim 3 , and wherein the pores of the first and the second structures have a maximum pore size that is less than 400 μm in diameter.6: The orthopedic implant of claim 2 , wherein the cells of the first structure have an irregular shape.7: The orthopedic implant of claim 2 , wherein the intermediate structure is directly attached to the first and the second structures.8: The orthopedic implant of claim 2 , wherein the intermediate structure is substantially solid.9: The orthopedic implant of claim 2 , further comprising an opening passing ...

PREPARATION METHOD FOR WEAR-RESISTANT COATING ON CYLINDRICAL INNER WALL SURFACE OF ALUMINUM ALLOY

A method for producing an abrasion-resistant coating on the inner wall of an aluminum alloy workpiece is provide. The steps include mixing a graphene powder and Al powder to obtain a mixed powder; combining and heating the mixed power with a polyvinyl alcohol (PVA) liquid, and performing spray granulation to obtain a low-temperature self-propagating composite; stirring a slurry comprising the low-temperature self-propagating composite and sodium silicate; injecting the slurry into a cylindrical inner cavity of an aluminum alloy workpiece mounted on a horizontal rotary table for rotation, the aluminum alloy workpiece is heated with the rotation at a second temperature of 80-100° C. so that the slurry is uniformly solidified on the cylindrical inner surface of the cylindrical inner cavity; and burning the slurry, after the slurry is uniformly solidified and while the rotation is maintained, with an oxyacetylene flame to form the wear-resistant coating. 110.-. (canceled)11. A method for generating a wear-resistant coating on a cylindrical inner surface of an aluminum alloy workpiece , comprising:mixing 0.1-0.5 wt % of a graphene powder and 99.5-99.9 wt % of an Al powder, the graphene powder has a lamellar structure with a thickness of 1-5 nm;{'sub': 2', '3', '2', '2', '3, 'combining 12-18 wt % of the graphene powder and the Al power, 62-65 wt % of an FeOpowder, 7-9 wt % of a ZnO powder, 1-3 wt % of a SiOpowder, 1-3 wt % of a BOpowder, and 2-17 wt % of a Cu—Ti alloy powder to obtain a mixed powder, wherein the Cu—Ti alloy powder include 95 wt % of Cu and 5 wt % of Ti;'}combining the mixed power with a polyvinyl alcohol (PVA) liquid, heating at 82-85° C., and performing spray granulation to obtain a low-temperature self-propagating composite;stirring a slurry comprising the low-temperature self-propagating composite and sodium silicate;injecting the slurry into a cylindrical inner cavity of an aluminum alloy workpiece, the aluminum alloy workpiece is mounted on a ...

FURNACE BRAZE DEPOSITION OF HARDFACE COATING ON WEAR SURFACE

A disclosed method of hard coating a wear surface of a valve of an aircraft air management system is performed by depositing a hardface alloy powder onto the wear surface, heating the wear surface and the hardface alloy powder to transform the hardface alloy powder into a molten liquid mass, and subsequently cooling the molten liquid hardface alloy mass to solidify the hardface alloy onto the wear surface. The disclosed process provides for localized application and subsequent bonding of the hardface alloy to discrete portions of the wear surface. The solidified hardface alloy coating may then be machined to obtain specific wear surface geometries. 1. An air management system for an aircraft comprising:a valve plate movable for controlling airflow through a passage;a valve shaft including an axial end supporting the valve plate within the passage; anda thrust plate for controlling axial movement of the valve shaft, the thrust plate including a thrust surface in contact with the axial end of the valve shaft, the thrust surface including a hardface alloy coating formed from a hardface alloy powder melted and solidified on the thrust surface.2. The air management system as recited in claim 1 , wherein the thrust surface is recessed and at least partially surrounded by walls.3. The air management system as recited in claim 2 , wherein the hardface alloy powder is disposed only on the thrust surface and not the walls.5. The air management system as recited in claim 2 , wherein the thrust surface is spaced apart from the walls.6. The air management system as recited in claim 2 , wherein the valve shaft includes a first diameter received within the thrust plate that is less than a second diameter outside of the thrust plate.7. The air management system as recited in claim 1 , wherein the hardface alloy is deposited onto the thrust surface as a powder and transformed into a mostly molten liquid mass on the thrust surface by elevating the thrust plate and the hardface alloy ...