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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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06-09-2021 дата публикации

Фреза спиральная двухзаходная конусная

Номер: RU0000206320U1
Автор: Алёна Константиновна Лунюшкина, Владимир Васильевич Галайко
Принадлежит: Алёна Константиновна Лунюшкина, Владимир Васильевич Галайко

Полезная модель относится к обработке материалов резанием и может быть использована в ювелирной промышленности при обработке ювелирного воска. Фреза спиральная двухзаходная конусная содержит хвостовик и режущую часть с винтовыми зубьями, разделенными канавками для схода стружки. На поверхности хвостовика в месте зажима фрезы в патроне выполнены встречные насечки, расположенные под углом от 45° до 75° к продольной оси фрезы. В области нанесения насечек хвостовик содержит нитридный слой в виде пленки толщиной от 0,3 мм до 0,6 мм. Повышение коэффициент трения хвостовика при его закреплении. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 206 320 U1 (51) МПК B23C 5/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B23C 5/10 (2021.05) (21)(22) Заявка: 2021114546, 24.05.2021 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Галайко Владимир Васильевич (RU), Лунюшкина Алёна Константиновна (RU) Дата регистрации: 06.09.2021 (56) Список документов, цитированных в отчете о поиске: RU 2736622 C1, 19.11.2020. RU 191476 U1, 07.08.2019. RU 2724238 C1, 22.06.2020. US 8152971 B2, 10.04.2012. (45) Опубликовано: 06.09.2021 Бюл. № 25 2 0 6 3 2 0 R U (54) Фреза спиральная двухзаходная конусная (57) Реферат: Полезная модель относится к обработке материалов резанием и может быть использована в ювелирной промышленности при обработке ювелирного воска. Фреза спиральная двухзаходная конусная содержит хвостовик и режущую часть с винтовыми зубьями, разделенными канавками для схода стружки. На поверхности хвостовика в месте зажима фрезы в Стр.: 1 патроне выполнены встречные насечки, расположенные под углом от 45° до 75° к продольной оси фрезы. В области нанесения насечек хвостовик содержит нитридный слой в виде пленки толщиной от 0,3 мм до 0,6 мм. Повышение коэффициент трения хвостовика при его закреплении. 1 ил. U 1 U 1 Адрес для переписки: 660025, Красноярский край, г. Красноярск, ул. Вавилова, 25-б, кв. 5, ...

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Номер записи: 1
12-01-2012 дата публикации

Cutting Insert and Cutting Edge Replaceable Cutting Tool

Номер: US20120009029A1
Автор: Ryuichi Saji
Принадлежит: Tungaloy Corp

A cutting insert includes two end surfaces each having a main surface usable as an attachment surface to a tool body, a peripheral side surface extending between the two end surfaces and a plurality of cutting edge portions each formed at an intersection between each end surface and the peripheral side surface. Each cutting edge portion includes a corner edge formed at a corner of a related end surface, a major cutting edge extending from one end of the corner edge and extending so as to depart from an intermediate plane defined to be perpendicular to the first axis and to include the second axis, and a minor cutting edge extending from the other end of the corner edge and extending in a direction to approach the intermediate plane.

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Номер записи: 2
16-02-2012 дата публикации

T-Slot Cutter Having Separate Centering and Torque-Transmitting Portions

Номер: US20120039676A1
Автор: Amir Marshansky
Принадлежит: Iscar Ltd

A cutting head ( 14 ) for a T-slot cutter ( 10 ) includes opposing cutting head top and intermediate surfaces ( 18, 20 ) extending perpendicular to a head rotation axis (A), and a head peripheral surface ( 22 ) extending therebetween. The cutting head ( 14 ) also includes cutting portions ( 24 ) located along the head peripheral surface ( 22 ) and a head protrusion ( 32 ). The head protrusion ( 32 ) extends from the cutting head intermediate surface ( 20 ) and includes a head torque-transfer portion ( 42 ). The cutting head ( 14 ) further includes a cutting head abutment surface ( 34 ), and a head bore ( 36 ) coaxial with the head rotation axis (A). The head bore ( 36 ) extends between, and opens out to, the cutting head top surface ( 18 ) and the head protrusion ( 32 ). The cutting head ( 14 ) also includes a head centering portion ( 40 ) distinct from the head torque-transferring portion ( 42 ) and located at an axial position different therefrom, along the head rotation axis (A).

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Номер записи: 3
01-03-2012 дата публикации

Milling insert, a tool and a device for milling

Номер: US20120051850A1
Автор: Johan Bergquist, Ralf Lehto, Rickard Sundstrom
Принадлежит: Sandvik Intellectual Property AB

A milling insert for center cutting milling of material is disclosed, which milling insert is arranged to be arranged in a seat that is defined by a milling cutter body and situated at a rotation axis defined by the milling cutter body, the milling cutter body being connectable to a rotatable holder. The milling insert includes a plurality of cutting edges, where at least one first cutting edge is terminated in or adjacent to a center axis defined by the milling insert, the first cutting edge including a first cutting edge portion having a first radius that is essentially equally great for each point of the first cutting edge portion. The first cutting edge includes at least one second cutting edge portion that is plane or has at least one second radius for each point of the respective second cutting edge portion, the at least one second radius being greater than the first radius. The at least one second cutting edge portion is situated between the first cutting edge portion and the center axis, one of the at least one second cutting edge portion adjoins the first cutting edge portion, and one of the at least one second cutting edge portion is terminated in or adjacent to the center axis. Also disclosed are a tool for center cutting milling of material, including the milling insert, and a device for center cutting milling of material, including a milling cutter body that is connectable to a rotatable spindle or holder and defines a rotation axis, the milling cutter body including a plurality of cutting edges, where at least one first cutting edge corresponds to the first cutting edge mentioned above.

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Номер записи: 4
19-04-2012 дата публикации

Cutting Tool and Cutting Insert for the Same

Номер: US20120093595A1
Автор: Chang Hee Choi
Принадлежит: TAEGUTEC LTD

A cutting tool for machining large workpieces having relatively a large cutting amount and a cutting insert configured to be used with the cutting tool. The cutting tool includes a cutting insert and a wedge for clamping the cutting insert. The cutting insert has a polygonal top surface, which comprises a recessed portion having a plurality of inclined abutment surfaces which are inclined toward the center of the top surface. The outline of said recessed portion is twisted at a predetermined angle with respect to the outline of the top surface. The wedge includes a projecting portion that contacts the inclined abutment surface and pushes the cutting insert so that two side surfaces of the cutting insert can be supported by a radial inner side surface and a lateral supporting surface of an insert seat.

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Номер записи: 5
16-08-2012 дата публикации

Dental instrument

Номер: US20120208147A1
Автор: Michael Krumsiek
Принадлежит: Gebrueder Brasseler GmbH and Co KG

A dental instrument includes a head ( 2 ) having cutting edges ( 1 ) and made of a ceramic material, and a shaft ( 3 ) which can be clamped into a driving member and is made of a metal material. The head ( 2 ) includes a mounting plug ( 4 ) having an external thread ( 5 ) and the shaft ( 3 ) includes a front-side threaded recess ( 6 ) into which the mounting plug ( 4 ) can be screwed. At least one locking recess is formed between the mounting plug ( 4 ) and the threaded recess ( 6 ).

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Номер записи: 6
13-09-2012 дата публикации

Cutting Tool with a Replaceable Blade Edge

Номер: US20120230790A1
Автор: Kazuyuki Uno, Naoto Nishiya
Принадлежит: Tungaloy Corp

As viewed from a side opposing a bottom face ( 6 ) of an insert attachment seat, an angle (α) between first and second restraint wall faces ( 7 a ) and ( 7 b ) rising from the bottom face ( 6 ) is smaller than an angle (β) between two peripheral faces of a cutting insert contacting them respectively. A first peripheral face of the cutting insert contacts the first restraint wall face ( 7 a ) in a substantially parallel posture with the extending direction of the first restraint wall face ( 7 a ), while the second peripheral face contacts the second restraint wall face ( 7 b ) in an end portion of the second restraint wall face ( 7 b ).

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Номер записи: 7
03-01-2013 дата публикации

Rotary cutting tool with vibration damping device

Номер: US20130004250A1
Автор: Kevin Michael Gamble
Принадлежит: Kennametal Inc

A rotary cutting tool includes a cutter body having a head, a shank, and a cavity extending along a central, longitudinal axis of the cutter body. The head includes at least one cutting insert mounted in a pocket adjacent to a chip groove. A vibration damping device is disposed within the cavity. The vibration damping device includes a stop member, a threaded fastener, weight elements, and a biasing member. At least one, if not all of the weight elements have different outside diameters to cause the weight elements to vibrate in the cavity at different frequencies. At least some of the frequencies of the weight elements are different than a fundamental chatter frequency of the cutting tool, thereby dampening vibration of the rotary cutting tool during a machining operation.

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Номер записи: 8
21-02-2013 дата публикации

Face miller and use thereof

Номер: US20130045059A1
Автор: Lutfi Bozkurt
Принадлежит: Guehring KG

The face miller is equipped with a plurality of plate-shaped hard material cutting inserts that are distributed over the circumference. The hard material cutting inserts are located on a graduated circle in pockets of a blade carrier and have a main cutting edge, which is adjusted at a cutting edge angle smaller than 90° relative to the working plane of the miller. In order to ensure maximum machining performance at a good service life, the cutting edge angle is selected to range between 10° and 30°, wherein the main cutting edge at the same time has a slightly convex design. The main cutting edge transitions into the secondary cutting edge via a transition radius having a value that ranges between 0.5 and 1.5 mm. The axial rake angle ranges between 20 and 30°. According to an advantageous further development, the radial rake angle ranges between −6° and −10°.

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Номер записи: 9
21-03-2013 дата публикации

END MILL

Номер: US20130071192A1
Автор: Kuroda Masahiko
Принадлежит: KYOCERA CORPORATION

The invention provides an end mill having an improved chip discharging performance and capable of carrying out excellent cutting machining. The end mill includes an end cutting edge () provided on a front end of a tool body () which rotates around a central axis, a peripheral cutting edge () provided on an outer periphery of the tool body (), a rake surface of the end cutting edge () and the peripheral cutting edge (), and at least one recess (), which locally breaks the continuity of the end cutting edge () is provided, wherein a wall section () which extends toward the rear of the outer peripheral side is provided at least in that area of the rake surface () which is closer to the outer peripheral side than the recess (). 1. An end mill comprising: an end cutting edge provided on a front end of a tool body which rotates around a central axis; a peripheral cutting edge provided on an outer periphery of the tool body; a rake surface of the end cutting edge and the peripheral cutting edge; and at least one recess which locally breaks the continuity of the end cutting edge is provided , wherein a wall section which extends toward the rear of the outer peripheral side is provided at least in that area of the rake surface which is closer to the outer peripheral side than the recess.2. The end mill according to claim 1 , wherein the wall section extends from the recess.3. The end mill according to claim 1 , wherein the wall section is a wall surface of a flute portion.4. The end mill according to claim 3 , wherein a width of the flute portion in a direction perpendicular to the central axis is 3 to 15% of a diameter of a rotation locus of the end cutting edge with respect to the central axis.5. The end mill according to claim 1 , wherein only one recess exists with respect to one of the end cutting edge claim 1 , and the recess is provided at such a position that a distance from the central axis is 50% to 90% of a diameter of a rotation locus of the end cutting edge with ...

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Номер записи: 10
18-04-2013 дата публикации

CUTTING INSERT AND INDEXABLE CUTTING TOOL

Номер: US20130094913A1
Автор: Yoshida Satoru
Принадлежит: TUNGALOY CORPORATION

A cutting insert helps prevent the occurrence of burrs and enables highly efficient processing. The cutting edge of the insert includes a cutting corner portion, a first main cutting edge and a second main cutting edge. The second main cutting edge includes a descending inclination portion inclined toward the side of a surface facing the rake face as it separates from the cutting corner portion and an ascending inclination portion inclined toward the side of the surface on which the rake face is formed, as it separates from the cutting corner portion. The descending inclination portion is connected to the cutting corner portion, the ascending inclination portion is connected to the descending inclination portion, and at least a connection region between the ascending inclination portion and the descending inclination portion has a concave curved non-cutting recess portion. 1. A cutting insert formed of a plate-like member with a substantially polygonal outer shape and comprising:a rake face formed on at least one of top and bottom surfaces opposite to each other in a direction of a central axis of the cutting insert;a flank extending between the top and bottom surfaces and being formed on an outer peripheral surface of the cutting insert; anda cutting edge formed at an intersection portion between the rake face and the flank, whereinthe cutting edge comprises a cutting corner portion, a first main cutting edge formed on one side of the cutting corner portion, and a second main cutting edge formed on the other side of the cutting corner portion;the second main cutting edge comprises a descending inclination portion gradually inclined in a direction from the side of a face on which the rake face is formed in the top and bottom surfaces toward the side of a surface facing the rake face as it separates from the cutting corner portion and an ascending inclination portion gradually inclined in a direction from the side of the surface facing the rake face toward the side ...

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Номер записи: 11
25-04-2013 дата публикации

Gear cutting machine, end mill and method of form milling

Номер: US20130101367A1
Автор: Alois Mundt
Принадлежит: Liebherr Verzahntechnik GmbH

The present disclosure relates to a gear cutting machine for gear cutting a workpiece, in particular a toothed wheel, by form milling having at least one cutter head for mounting at least one end mill, wherein the cutter head or the end mill and/or the workpiece mount are adjustable and the end mill axis can be aligned approximately parallel to the machined tooth flank of the clamped workpiece, and wherein the cutter axis can be applied to the flank contour and the end mill has an outer contour corresponding to the flank contour.

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Номер записи: 12
02-05-2013 дата публикации

Rotary tool and method of producing

Номер: US20130108381A1
Автор: Armin Josef Zimmermann, Christoph Gey, Xavier Spichtinger
Принадлежит: Kennametal Inc

Rotary tool, such as a drill or milling cutter, having a main tool body, which extends along a center longitudinal axis, which has a flute and which, at a distance from the center longitudinal axis, has an insert seat which is introduced into the flute wall and in which a cutting insert, in particular made of a superhard material such as PCD or PCBN, is fastened integrally, wherein, for fixing both a radial and also an axial position of the cutting insert, the insert seat has an abutment wall which has a contour for positioning the cutting insert in a rotationally locked manner.

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Номер записи: 13
02-05-2013 дата публикации

END MILL

Номер: US20130108382A1
Автор: Haraguchi Kazunori
Принадлежит: MITSUBISHI MATERIALS CORPORATION

Disclosed herein is an end mill capable of preventing an increase in cutting resistance, chipping, or damage due to cutting chip clogging from being generated in each bottom cutting edge having a small pitch in a rotational direction side of the end mill even when the pitches between the bottom cutting edges in a circumferential direction of each thereof differ from one another. An end mill includes an end mill body which is rotated about an axis thereof; an odd number of five or more outer peripheral cutting edges formed around a front end portion of the end mill body; and bottom cutting edges which are formed at the front end of the end mill body so as to respectively extend from the tips of the outer peripheral cutting edges toward the axis, wherein the outer peripheral cutting edges have different helix angles with respect to the axis. 1. An end mill comprising:an end mill body which is rotated about an axis thereof;an odd number of five or more outer peripheral cutting edges formed around a front end portion of the end mill body, the outer peripheral cutting edges being twisted about the axis to a rearward side of a rotational direction of the end mill from a front end of the end mill body toward a rear end side thereof and being arranged at intervals in a circumferential direction; andbottom cutting edges which are formed at the front end of the end mill body so as to respectively extend from tips of the outer peripheral cutting edges toward the axis, the number of the bottom cutting edges being the same as the number of the outer peripheral cutting edges,wherein the outer peripheral cutting edges have different helix angles with respect to the axis between the outer peripheral cutting edges adjacent to each other in the circumferential direction, andwherein at least a portion of the bottom cutting edges has a pitch between the bottom cutting edges adjacent to each other in the rotational direction of the end mill, the pitch differing from the pitches between ...

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Номер записи: 14
02-05-2013 дата публикации

CUTTING INSERT, CUTTING TOOL, AND METHOD OF MANUFACTURING MACHINED PRODUCT USING THEM

Номер: US20130108387A1
Автор: Ishi Hirohisa, Yoshida Kayo
Принадлежит: KYOCERA CORPORATION

An insert according to an embodiment of the present invention includes an upper surface, a lower surface, a side surface comprising a first side surface and a second side surface which are connected to each of the upper surface and the lower surface, and are adjacent to each other, and a cutting edge including a major cutting edge lying along an intersection of the upper surface and the first side surface, and a minor cutting edge lying along an intersection of the first side surface and the second side surface. The first side surface includes a first constraining surface located at a middle region in a thickness direction of the first side surface, and a rake surface which is located between the first constraining surface and the major cutting edge, and is recessed with respect to the first constraining surface and the major cutting edge. A distance between the major cutting edge and the first constraining surface is increased toward the minor cutting edge in a side view. A cutting tool including the cutting insert, and a method of manufacturing a machined product by using the cutting tool are also provided. 1. A cutting insert , comprising:an upper surface;a lower surface;a side surface which is connected to each of the upper surface and the lower surface and comprises a first side surface and a second side surface being adjacent to each other; anda cutting edge comprising a major cutting edge lying along an intersection of the upper surface and the first side surface, and a minor cutting edge lying along an intersection of the first side surface and the second side surface, wherein a first constraining surface located at a middle region in a thickness direction, and', 'a rake surface which is located between the first constraining surface and the major cutting edge, and is recessed with respect to the first constraining surface and the major cutting edge, and, 'the first side surface comprises'}a distance between the major cutting edge and the first constraining ...

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Номер записи: 15
02-05-2013 дата публикации

CUTTING INSERT, CUTTING TOOL, AND METHOD OF MANUFACTURING MACHINED PRODUCT USING THEM

Номер: US20130108388A1
Автор: Ishi Hirohisa
Принадлежит: KYOCERA CORPORATION

A cutting insert includes an upper surface; a lower surface; a side surface which is connected to each of the upper surface and the lower surface and includes a first side surface, a second side surface and a third side surface being adjacent to each other in order; an upper cutting edge including an upper major cutting edge located at an intersection of the upper surface and the first side surface, and an upper flat cutting edge located closer to the upper major cutting edge in an intersection of the upper surface and the second side surface; and a lower cutting edge including a lower major cutting edge located at an intersection of the lower surface and the third side surface, and a lower flat cutting edge located closer to the lower major cutting edge in an intersection of the lower surface and the second side surface. The second side surface comprises an upper flank surface connected to the upper flat cutting edge, and a lower flank surface connected to the lower flat cutting edge. As going from the upper surface to the lower surface, the upper flank surface is closer to a central axis extending between the upper surface and the lower surface and the lower flank surface is separated from the central axis in a side sectional view. A cutting tool including the cutting insert, and a method of manufacturing a machined product by using the cutting tool are also provided. 2. The cutting insert according to claim 1 , whereinthe upper flank surface is inclined at an inclination angle α with respect to the central axis in a side sectional view,the upper major cutting edge is inclined downward at an inclination angle X as the upper major cutting edge separates from the upper flat cutting edge in a side view of the first side surface, andthe inclination a is smaller than the inclination angle X.3. The cutting insert according to claim 1 , whereinthe lower flank surface is inclined at an inclination angle β with respect to the central axis in a side sectional view,the lower ...

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Номер записи: 16
09-05-2013 дата публикации

CUTTING INSERT FOR HIGH FEED FACE MILLING

Номер: US20130115021A1
Автор: Dufour Jean-Luc, Fang X. Daniel, Festeau Gilles, Wills David J.
Принадлежит: TDY INDUSTRIES, LLC

A cutting insert for milling operations, such as, face milling, slot milling, plunge milling, and ramping operations. The cutting insert exhibits a combination of favorable cutting edge strength, and unique cutting edge geometry, thus, allowing milling operations at relatively high feed rates. The cutting insert includes at least four cutting edges, wherein at least one of the cutting edges is a convex cutting edge. Certain embodiments of square cutting inserts will have four convex cutting edges which may be connected by nose corners. The convex cutting edge may comprise at least one of a circular arc, a portion of an ellipse, a portion of a parabola, a multi-segment spline curve, a straight line, or combinations of these. Wherein the convex cutting edge comprises a circular arc, the circular arc may have a radius greater than or equal to two times a radius of the largest circle that may be inscribed on the top surface. 1. A milling insert comprising:a top face comprising a plurality of convex cutting edges and a plurality of nose corners, the nose corners connecting the cutting edges;a bottom face comprising a bottom edge, wherein a perimeter of the top face is greater than a perimeter of the bottom face;a plurality of side surfaces, a said side surface extending between a cutting edge and the bottom edge, wherein when each side surface is viewed in elevation, the cutting edge of the side surface includes a straight cutting edge region and a curved cutting edge region to the right of the straight cutting edge region; a first clearance surface extending from a curved cutting edge region toward the bottom edge, and', 'a first planar surface region extending from the straight cutting edge region toward the bottom edge; and, 'each side surface comprising'}a second clearance surface extending from each nose corner toward the bottom edge.2. The milling insert of claim 1 , wherein the straight cutting edge region of each cutting edge is configured to produce a machined ...

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Номер записи: 17
23-05-2013 дата публикации

CUTTING INSERT AND A MILLING TOOL

Номер: US20130129432A1
Автор: Huteau Patrick, Jaeger Sebastien
Принадлежит: Sandvik Intellectual Property AB

A cutting insert for face milling and ramping includes an upper side defining an upper extension plane, a lower side defining a lower extension plane parallel with the upper extension plane, and an edge side extending around the cutting insert. A centre axis extends perpendicularly through the upper and lower extension planes. An upper cutting edge forms four upper cutting edge portions having an identical length corresponding to a determined angle with respect to the centre axis. A lower cutting edge forms four lower cutting edge portions (), having an identical length corresponding to the determined angle with respect to the centre axis. Each upper cutting edge portion is displaced angularly with respect to the centre axis in relation to one of the lower cutting edge portions with a displacement angle being greater than zero and less than the determined angle. 1. A cutting insert configured for chip-removing machining and for being mounted in a cutter body for face milling and ramping of a workpiece , comprising:an upper side defining an upper extension plane;a lower side defining a lower extension plane being parallel with the upper extension plane, wherein a centre axis extends perpendicularly through the upper extension plane and the lower extension plane;an upper cutting edge extending around the upper side and forming at least two upper cutting edge portions, each having a length corresponding to a determined angle with respect to the centre axis;a lower cutting edge extending around the lower side and forming at least two lower cutting edge portions, each having a length corresponding to said determined angle with respect to the centre axis; andan edge side extending around the cutting insert, wherein the cutting insert is indexable, to different index positions, for permitting cutting with at least one of the at least two upper cutting edge portions with the upper side forming a chip surface, or at least one of the at least two lower cutting edge portions ...

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Номер записи: 18
23-05-2013 дата публикации

CUTTING INSERT AND ROTARY CUTTING TOOL

Номер: US20130129433A1
Автор: KAWASAKI Souzou, Matsumoto Osamu
Принадлежит: TUNGALOY CORPORATION

A cutting insert includes an insert body portion and a plurality of projecting portions provided integrally with the insert body portion. The projecting portion includes a cutting edge and includes projecting portion upper and lower surfaces, two projecting portion side surfaces, and a projecting portion side end surface extending therebetween. In the projecting portion, a round corner surface extends between the projecting portion upper surface and the projecting portion side end surface. The cutting edge is formed so as to include a corner formed along an edge of the round corner surface and such that the projecting portion side surface serves as a rake face. The projecting portion is designed such that a length between the two projecting portion side surfaces is smaller than a diameter of an inscribed circle defined on the insert body portion. 1. A cutting insert comprising:an insert body portion comprising a body portion upper surface, a body portion lower surface located opposite the body portion upper surface, and body portion side surfaces extending between the body portion upper surface and the body portion lower surface, the insert body portion including an axis defined therein which passes through the body portion upper surface and the body portion lower surface; anda plurality of projecting portions each comprising a cutting edge and each provided integrally with the insert body portion at an outer position of the insert body portion in a direction orthogonal to the axis,wherein the projecting portion comprises a projecting portion upper surface connected to the body portion upper surface, a projecting portion lower surface connected to the body portion lower surface, two projecting portion side surfaces each connected to the corresponding body portion side surface, and a projecting portion side end surface extending therebetween, and the projecting portion comprises a round corner surface formed thereon and extending between the projecting portion upper ...

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Номер записи: 19
23-05-2013 дата публикации

Cutting Insert and Indexable Rotary Cutting Tool

Номер: US20130129434A1
Автор: BHAGATH Kedar Suresh
Принадлежит: TUNGALOY CORPORATION

A cutting insert is arranged in a tangential direction on an outer peripheral portion of a tool body, the cutting insert having a reduced area in a top view thereof. The cutting insert has an upper face, a lower face and at least five side faces extending between the upper and lower faces. The upper face of the cutting insert has at least five intersection portions intersecting with the at least five side faces. The at least five intersection portions include first and second intersection portions and third and fourth intersection portions shorter than the first and second intersection portions, respectively. A cutting edge is formed at each of the first and second intersection portions. A rake face is formed on cutting side faces corresponding to the first and second intersection portions, respectively, while a cutting edge flank is formed on the upper face. 1. A plate-like cutting insert comprising:an upper face having a substantially polygonal outer shape;a lower face opposite to the upper face;a plurality of side faces extending between the upper face and the lower face; anda mounting hole penetrating from the upper face to the lower face, wherein:the upper face comprises at least five intersection portions intersecting with the plurality of side faces;a first intersection portion and a second intersection portion are arranged at positions adjacent to each other;a third intersection portion is arranged at a position adjacent to the first intersection portion;a fourth intersection portion is arranged at a position adjacent to the second intersection portion;the third and fourth intersection portions comprise lengths shorter than the first and second intersection portions, respectively;on the first and second intersection portions, a cutting edge is formed, respectively;on the plurality of side faces, a rake face is formed on the side face corresponding to the first and second intersection portions, respectively; andon the upper face, a flank for forming a cutting ...

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Номер записи: 20
23-05-2013 дата публикации

Exchangeable insert seat member for cutting tool

Номер: US20130129435A1
Автор: Jeremy Schmitt, Magnus Örtlund, Stefan Sander
Принадлежит: Sandvik Intellectual Property AB

The present invention relates to an exchangeable insert seat member for a metal cutting tool comprising a tool body and a cutting insert, wherein the exchangeable insert seat member is arranged to be placed between the tool body and the cutting insert wherein said exchangeable insert seat member is contacting said tool body and said cutting insert at contact areas arranged such that there is no direct contact between the tool body and the cutting insert and wherein said exchangeable insert seat member is produced by powder injection molding. The present invention also relates to a metal cutting tool comprising such an exchangeable insert seat member.

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Номер записи: 21
30-05-2013 дата публикации

Cutting Insert and Indexable Endmill

Номер: US20130136547A1
Автор: Bhagath Keder Suresh, KUROKAWA Masahiro
Принадлежит: TUNGALOY CORPORATION

A cutting insert for a multifunctional endmill is capable of using three corners. The cutting insert includes a top surface and a bottom surface having an outer shape of a substantially polygonal shape and four side surfaces extending between the top surface and the bottom surface, a first side surface has a positive flank angle, a second side surface has a positive flank angle, a third side surface has the positive flank angle, the first side surface includes a first and a second component surfaces connected with each other so that the first side surface protrudes outward from a peripheral surface of the cutting insert, and a connection portion between a first and a second component surface extends between the top surface and the bottom surface. 1. A cutting insert in a plate-like shape comprising:a top surface and a bottom surface having a substantially polygonal outer shape;at least four side surfaces extending between the top surface and the bottom surface; anda mounting hole passing through the top surface and the bottom surface,wherein, of at least four sides of the top surface corresponding to the at least four side surfaces, upper first and upper second short sides are formed to be non-parallel to each other and different in length from each other, and upper first and upper second long sides are formed to be non-parallel to each other and different in length from each other;wherein, of the at least four side surfaces, a first side surface corresponding to the upper first short side comprises a positive flank angle from the bottom surface toward the top surface;wherein, of the at least four side surfaces, a second side surface corresponding to the upper second short side comprises a positive flank angle from the top surface toward the bottom surface;wherein, of the at least four side surfaces, a third side surface corresponding to the upper first long side comprises a positive flank angle from the top surface toward the bottom surface; andwherein the second ...

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Номер записи: 22
06-06-2013 дата публикации

Cutting edge exchange type cutting tool

Номер: US20130142580A1
Автор: Shizue Konta
Принадлежит: Tungaloy Corp

A cutting edge exchange type cutting tool includes a cutting insert and a body having a chip seat to which the cutting insert is attached. The cutting insert has a first inclined surface part and a second inclined surface part. In the first wall surface, a first abutting part which abuts on the first inclined surface part is formed. In the second wall surface, a second abutting part which abuts on the second inclined surface part is formed. The first and second inclined surface parts are formed with flat surfaces. The first inclined surface part is inclined at an obtuse angle to the bottom surface. The second inclined surface part is inclined at an acute angle to the bottom surface.

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Номер записи: 23
13-06-2013 дата публикации

CUTTING INSERT AND CUTTING TOOL

Номер: US20130149053A1
Автор: BHAGATH Kedar Suresh
Принадлежит: TUNGALOY CORPORATION

A cutting insert according to an aspect of the present invention is provided with two opposite first surfaces, and a peripheral surface extending between the two first surfaces. A first cutting edge is formed on an edge of one first surface of the two first surfaces. A rake surface associated with the first cutting edge extends on the one first surface. A second cutting edge is formed on an edge of one second surface of two opposite second surfaces in the peripheral surface. A rake surface associated with the second cutting edge extends on the one second surface. The second cutting edge has a different function from the first cutting edge. 1. A cutting insert shaped like a plate , comprising:two opposite first surfaces,a peripheral surface extending between the two first surfaces, the peripheral surface having two opposite second surfaces,a first cutting edge formed on an edge of one first surface of the two first surfaces, a first rake surface associated with the first cutting edge extending on the one first surface, anda second cutting edge formed on an edge of one second surface of the two second surfaces, a second rake surface associated with the second cutting edge extending on the one second surface, wherein:the second cutting edge has a different function from the first cutting edge.2. The cutting insert in accordance with claim 1 , whereinthe first cutting edge is formed to extend along a corner portion in each of the two first surfaces, andthe second cutting edge is formed to extend to either one of the two first surfaces in each of the two second surfaces.3. The cutting insert in accordance with claim 1 , whereina first median plane extends medianly between the two first surfaces to substantially bisect the cutting insert,a second median plane extends medianly between the two second surfaces to substantially bisect the cutting insert, the second median plane being perpendicular to the first median plane,a part of the first cutting edge extends on a ...

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Номер записи: 24
04-07-2013 дата публикации

Unequal Helix-Angle End Mill

Номер: US20130170916A1
Автор: Fang Shuzhang, LI PING, WANG Shequan, Xu Jin
Принадлежит: ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO., LTD.

An unequal helix-angle end mill includes a cutting part and a handle part. The cutting part is provided with a plurality of flutes, each spirally extending from the bottom end to the handle part. The face of each flute facing the cutting rotation direction is a rake face, wherein the rake face and an outer peripheral face of the cutting part are intersected to form an outer peripheral blade, and the helix-angle of at least one of the peripheral blades is different from those of the other peripheral blades. A face joined with the peripheral blade among the outer peripheral face of the cutting part is a rear face. The width B of the edge flap of each peripheral blade is equal on a plane orthogonal to a rotating axis of the end mill. The unequal helix-angle end mill has high strength, and enhances the cutting depth and durability. 1. An unequal helix-angle end mill comprising a cutting part and a handle part , wherein said entire cutting part is provided with a plurality of flutes , wherein each of said flutes spirally extends from a bottom end of said cutting part to said handle part , wherein a face of each flute facing a cutting rotation direction is a rake face , wherein said rake face and an outer peripheral face of said cutting part are intersected to form an outer peripheral blade , wherein a helix-angle of at least one of said peripheral blades is different from those of the other peripheral blades , wherein a face joined with said peripheral blade among said outer peripheral face of said cutting part is a rear face , wherein the width B of an edge flap of each of said peripheral blades is equal on a plane orthogonal to a rotating axis of said end mill.2. The unequal helix-angle end mill claim 1 , as recited in claim 1 , wherein the width B of said edge flap of each of said peripheral blades is constant along an axial direction of said end mill.3. The unequal helix-angle end mill claim 1 , as recited in claim 1 , wherein the outer diameter of said cutting part ...

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Номер записи: 25
15-08-2013 дата публикации

CUTTER ELEMENTS, ROTARY MACHINE TOOLS COMPRISING SAME AND METHOD FOR MAKING SAME

Номер: US20130209184A1
Автор: Barry John James, Fries Robert, Kasonde Maweja
Принадлежит: ELEMENT SIX LIMITED

A cutter element () for a rotary machine tool having an axis of rotation, the cutter element comprising a plurality of cutting edges () defined by at least one cutter structure () comprising superhard material, consecutive cutting edges being spaced apart by at most 10 mm and configured operable to cut a body when moved in a direction that is substantially non-aligned with the axis of rotation. 1. A cutter element for a rotary machine tool having an axis of rotation , the cutter element comprising a plurality of cutting edges defined by at least one cutter structure comprising superhard material , consecutive cutting edges being spaced apart by at most 10 mm and configured operable to cut a body when moved in a direction that is substantially non-aligned with the axis of rotation.2. A cutter element as claimed in claim 1 , in which the consecutive cutting edges are spaced apart by at most 10 mm azimuthally about the axis of rotation.3. A cutter element as claimed in claim 1 , comprising at least three cutting edges.4. A cutter element as claimed in claim 1 , in which the cutter structure comprises diamond.5. A cutter element as claimed in claim 1 , having a proximate end claim 1 , a distal end and a peripheral side connecting the proximate end and the distal end; in which cutting edges are provided on the peripheral side and consecutive cutting edges on the peripheral side are at most about 10 mm apart circumferentially about the axis of rotation.6. A cutter element as claimed in claim 1 , having a generally cylindrical shape and the cutter structure having a generally tubular form.7. A cutter element as claimed in claim 1 , comprising bi-directional flutes formed into the cutter structure.8. A cutter element as claimed in claim 1 , for a ball-nosed end mill claim 1 , in which the cutter structure has a generally domed form.9. A cutter element as claimed in claim 1 , in which the cutter structure is joined to a cemented carbide substrate by means of at least one ...

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Номер записи: 26
15-08-2013 дата публикации

Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert

Номер: US20130209189A1
Автор: Bernhard Borschert, Dieter MÜHLFRIEDEL, Jürgen Schwägerl, Michael D. Shultz, Michael R. McCormick, Robert A. Erickson, Ruy Frota De Souza, Jr.
Принадлежит: Kennametal Inc

A tool shank for use with a cutting insert in a rotary cutting tool includes a body having, and adapted to be rotated about, a central longitudinal tool axis, the body having a tip portion structured to receive at least a portion of the cutting insert therein. The shank also includes a pair of chip flutes formed in the body and a pair of recesses, each recess bordering a respective chip flute. Each recess includes a rim portion extending perpendicular to the tool axis and a bearing surface extending at an incline relative to the tool axis. Each rim portion is adapted to engage a corresponding surface on the cutting insert. Each bearing surface is adapted to engage a corresponding bearing surface on the cutting insert in a manner such that the cutting insert is pulled against the body when the rotary cutting tool is rotated about the tool axis.

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Номер записи: 27
29-08-2013 дата публикации

Machining tool and method for producing same

Номер: US20130223941A1
Автор: Lutfi Bozkurt
Принадлежит: Guehring KG

A machining tool comprising at least one plate-shaped cutting insert made of impact- and/or wear-resistant cutting material at least in some sections and which is adhesively bonded to a cutter holder directly by means of an adhesive layer in an immovable manner by means of a contact surface arrangement, the cutting insert substantially prism-shaped. A base area of the prism is adhesively bonded to the cutting insert holder substantially over the full area, a jacket surface arrangement of the prism adjacent to the cutting edge for spatially fixing the cutter is drawn to the tool, and a section of the jacket surface arrangement substantially opposite the cutting edge is caught in a fitting groove of the cutting insert holder.

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Номер записи: 28
29-08-2013 дата публикации

Milling Insert and Milling Tip-Replacement-Type Rotary Cutting Tool

Номер: US20130223942A1
Автор: MATSUO Shinya, OODE Hisayuki, SAITO MANABU, Touma Shoujirou
Принадлежит: FUJI JUKOGYO KABUSHIKI KAISHA

Disclosed is a milling insert, in which cutting resistance is reduced, wear advance of cutting edges is suppressed, and elongation of a lifetime is achieved, and is an indexable face milling cutter. 1. A milling insert , comprising:an insert body having a polygonal tubular shape, the insert body comprising:rake faces provided on one polygonal surface of the insert body;flanks composed of circumferential surfaces adjacent to the polygonal surface; andcutting edges defining a ridge line where the rake faces and the flanks intersect each other as cutting edges,wherein, the rake faces include serrations having pluralities of mount portions and valley portions that are arrayed alternately to intersect the cutting edges,when the flanks are viewed from above, the ridge line has a waveform shape, in which bottom portions and top portions are formed into concave circular arc portions and convex circular arc portions, respectively, and are alternately repeated,both of the concave circular arc portions and the convex circular arc portions are a ¼ circular arc or more to a ⅓ circular arc or less, andeach of the concave circular arc portions is unevenly located at a position close to one of two of the convex circular arc portions adjacent to the concave circular arc portion, and far from the other of the two convex circular arc portions.2. The milling insert according to claim 1 , wherein the ridge line is formed into a shape in which the concave circular arc portion and the convex circular arc portion far from the concave circular arc portion are connected to each other by a straight line claim 1 , the far convex circular arc portion being one of the two convex circular arc portions adjacent to the concave circular arc portion.3. The milling insert according to claim 2 , wherein the ridge line is formed into a shape in which the concave circular arc portion and the convex circular arc portion close to the concave circular arc portion are connected to each other by a straight ...

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Номер записи: 29
26-09-2013 дата публикации

METHOD OF REMOVING END-SURFACE BURR OF FORMED GROOVE AND FORMED ROTARY CUTTING TOOL FOR CHAMFERING

Номер: US20130251472A1
Автор: Mori Kosuke
Принадлежит: OSG CORPORATION

A method of removing an end-surface burr of a formed groove cut into a workpiece by rotationally driving around an axial center and moving a formed rotary cutting tool relative to the workpiece in a direction orthogonal to the axial center, by using a formed rotary cutting tool for chamfering acquired by deforming a radial shape of the formed rotary cutting tool used in cutting of the formed groove according to a predefined chamfer angle, and by rotationally driving around an axial center and moving the formed rotary cutting tool for chamfering relative to an end surface of the formed groove in a direction perpendicular to the axial center along an axial center movement locus forming the chamfer angle relative to an axial center movement locus of the formed rotary cutting tool in the cutting of the formed groove, chamfering for removing a burr on the end surface is performed. 1. A method of removing an end-surface burr of a formed groove cut into a workpiece by rotationally driving around an axial center and moving a formed rotary cutting tool relative to the workpiece in a direction orthogonal to the axial center ,by using a formed rotary cutting tool for chamfering acquired by deforming a radial shape of the formed rotary cutting tool used in cutting of the formed groove in accordance with a predefined chamfer angle, andby rotationally driving around an axial center and moving the formed rotary cutting tool for chamfering relative to an end surface of the formed groove in a direction perpendicular to the axial center along an axial center movement locus forming the chamfer angle relative to an axial center movement locus of the formed rotary cutting tool in the cutting of the formed groove, chamfering for removing a burr on the end surface being performed.2. The method of removing an end-surface burr of a formed groove of claim 1 , wherein {'br': None, 'i': f', 'x', 'f', 'x', 'g, 'sub': 'base', '()=()×cos θ×(α,θ)'}, 'a radial shape f(x) corresponding to an axial ...

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Номер записи: 30
03-10-2013 дата публикации

MILLING CUTTER

Номер: US20130259585A1
Автор: JIANG YI-MIN, XU Long
Принадлежит:

A cutter for milling of workpiece includes a cutter body, a first cutting portion, and a second cutting portion formed between the cutter body and the first cutting portion. The first cutting portion carries out primary machining on the workpiece. The first and second cutting portions extend in opposite twists or helixes along a central axis of the cutter body and are rotated in opposite directions during machining. 1. A cutter configured for milling of a workpiece , comprising:a cutter body;a first cutting portion configured for primary machining of the workpiece; anda second cutting portion formed between the cutter body and the first cutting portion, wherein the first cutting portion extends along a central axis of the cutter body in a helix shape, the second cutting portion extends along the central axis of the cutter body in a helix shape, and a helical direction of the first cutting portion and a helical direction of the second cutting portion are opposite of each other.2. The cutter of claim 1 , wherein a length of the first cutting portion along the central axis is equal to or smaller than a length of the second cutting portion along the central axis.3. The cutter of claim 1 , wherein the first cutting portion comprises two lead cutting edges and two side cutting edges claim 1 , and the two lead cutting edges and the two side cutting edges are alternately arranged in an end surface of the first cutting portion along a circumferential direction of the first cutting portion.4. The cutter of claim 3 , wherein a first helical groove is defined between one of the two lead cutting edges and one of the two side cutting edges next to the lead cutting edge.5. The cutter of claim 4 , wherein each of the two lead cutting edges comprises an end edge in an end surface thereof claim 4 , and a circumferential edge connected to the end edge of the each of the two lead cutting edges claim 4 , and the circumferential edge of the each of the two lead cutting edges extends ...

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Номер записи: 31
10-10-2013 дата публикации

FASTENER, INSTALLATION TOOL AND RELATED METHOD OF USE

Номер: US20130266398A1
Автор: Vandenberg Roger A.
Принадлежит:

A fastener including a chisel point that pre-bores a hole in a work piece to prevent damage to the work piece as the fastener advances. The fastener can include a head, a shaft and a chisel brake point formed at an end of the shaft. The chisel brake point can include first and second opposing inclined surfaces disposed at an angle of about 80° to about 150° relative to one another. A thread can begin adjacent the chisel brake point and form an extension of an inclined surface and/or a chisel edge. The chisel brake point can scrape material from a work piece while pre-boring a hole. The material can be transferred to the thread, and subsequently fed up the thread, out of the pre-bored hole. The chisel brake point can also selectively retard advancement of the fastener into the work piece. Methods of installing the fastener also are provided. 1. A fastener comprising:a head including a drive feature adapted to be driven by a tool to rotate the fastener;a shaft joined with and extending away from the head, the shaft terminating at an end, the shaft defining a longitudinal axis;a primary thread formed along the shaft, the primary thread coiling around the shaft toward the end, the primary thread including a last thread; anda chisel brake point located at the end, the chisel brake point including a first inclined surface and a second inclined surface that begin at a boundary and extend toward a chisel edge,wherein the last thread coils around the end, beyond the boundary toward the chisel edge,wherein the last thread merges with the first inclined surface to form an extension of the first inclined surface, thereby increasing a surface area of the first inclined surface,wherein the last thread includes a lower thread surface that is located within the end,wherein the lower thread surface coils around the shaft and joins with the primary thread so that material scraped at least by the chisel edge, while pre-boring a hole in a work piece with the fastener, is transferred to ...

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Номер записи: 32
17-10-2013 дата публикации

CUTTING TOOL FOR MACHINING A WORKPIECE

Номер: US20130272807A1
Автор: LUIK MATTHIAS, OETTLE MATTHIAS
Принадлежит:

A cutting tool for machining a workpiece. The cutting tool comprises a holder and at least two cutting inserts which are separated from each other by a spacer element. The cutting tool may be used to produce two or more bevels (and/or joints and/or grooves) at precisely defined spacings in only one operation. Through the use of spacer elements of different lengths, it is possible to produce bevels at different spacings. The spacer element preferably has an interface which comprises only radial contact surfaces, which run parallel to a longitudinal axis of the spacer element, and a substantially flat axial contact surface, which runs transverse to the longitudinal axis. The length of the spacer element can therefore be shortened on the rear side of the spacer element without destroying said interface. 1. A cutting tool for machining a workpiece , comprising:a holder having a central holder bore that extends along a longitudinal axis, and having a first interface that is arranged at a front end of the holder;a first cutting insert having a second interface, which is arranged at a rear side of the first cutting insert and corresponds to the first interface, for coupling the first cutting insert to the holder, and having a third interface that is arranged at a top face of the first cutting insert opposite the rear side of the first cutting insert;a spacer element having a fourth interface, which is arranged at a rear side of the spacer element and corresponds to the third interface, for coupling the spacer element to the first cutting insert, and having a fifth interface that is arranged at a top face of the spacer element opposite the rear side of the spacer element,a second cutting insert having a sixth interface, which is arranged at a rear side of the second cutting insert and corresponds to the fifth interface, for coupling the second cutting insert to the spacer element;at least one fastening element for fastening together the two cutting inserts, the spacer ...

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Номер записи: 33
07-11-2013 дата публикации

METHOD AND MILLING CUTTER FOR MACHINING HARDENED CRANKSHAFTS OR CAMSHAFTS

Номер: US20130294849A1
Автор: Baer Juergen Thomas, Heinloth Markus
Принадлежит: KENNAMETAL INC.

The invention relates to a method for precision machining of crankshafts or camshafts to final dimensional tolerances R<10 μm, preferably ≦5 μm and concentricity tolerances ≦30 μm, preferably ≦6 μm, which have been machined and at least partially subjected to hardening, wherein after the first machining has been carried out and subsequent hardening to 45 to 60 HRC, preferably 50 to 53 HRC, a final machining is carried out by means of at least one milling tool, wherein it is provided that the final machining is carried out by means of cutting inserts made of coated hard metal. The invention further relates to a milling tool for precision machining of crankshafts or camshafts.

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Номер записи: 34
07-11-2013 дата публикации

Cutting insert for right angle machining and milling cutter having the same

Номер: US20130294850A1
Автор: Chang Gyu Park
Принадлежит: TAEGUTEC LTD

A polygonal cutting insert for right angle machining has opposed upper and lower surfaces, a peripheral side surface interconnecting the upper and lower surfaces and having curved first and fourth side surfaces and plane second and third side surfaces, and main and secondary cutting edges alternately formed along the outer peripheries of the upper and lower surfaces. The adjacent main and secondary cutting edges form a right angle therebetween. The first side surface adjoins the main cutting edge of the upper surface. The second side surface adjoins the secondary cutting edge of the lower surface. The third side surface adjoins the secondary cutting edge of the upper surface. The fourth side surface adjoins the main cutting edge of the lower surface. The cutting insert can be mounted on a milling cutter at a positive axial rake angle.

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Номер записи: 35
07-11-2013 дата публикации

Milling tool as well as set of milling inserts of a milling tool

Номер: US20130294851A1
Автор: Sågström Thomas
Принадлежит: Sandvik Intellectual Property AB

A milling tool for slot milling includes a tool body and a plurality of separated first seats, which form root insert seats for root inserts arranged one after the other along a first line and a plurality of separated flank insert seats that includes a plurality of second seats for flank inserts . The plurality of second seats is arranged one after the other along a second line on a primary side of the root insert seats. A plurality of third seats for flank inserts is arranged one after the other along a third line on a secondary side of the root insert seats. Each flank insert seat includes a bottom surface, an inner side surface, and an outer side surface. Each flank insert includes an under side, an opposite upper side, and a circumferential edge side that forms a rake face connecting the upper side and the underside. 1. A milling tool for slot milling , comprising:a tool body defining a rotation axis; anda plurality of first seats separated in a circumferential direction and forming a plurality of root insert seats, the plurality of root insert seats being arranged one after the other in the tool body along a first line that extends around the rotation axis;a plurality of flank insert seats separated in the circumferential direction, the flank insert seats comprising a plurality of second seats arranged one after the other along a second line that extends around the rotation axis on a primary side of the root insert seats, and a plurality of third seats arranged one after the other along a third line that extends around the rotation axis on a secondary side of the root insert seats, each of said plurality of flank insert seats including a bottom surface, an inner side surface, and an outer side surface, wherein each of the plurality of root insert seats comprises a replaceable root insert and each of the plurality of flank insert seats comprises a replaceable flank insert each root insert including an under side, an opposite upper side forming a rake face, a ...

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Номер записи: 36
28-11-2013 дата публикации

Rotary cutter

Номер: US20130315681A1
Автор: Vladimir Volokh
Принадлежит: Individual

The present invention relates to a rotary cutting tool consisting of a shank and at least one cutting section comprising a plurality of cutting teeth, the cutting section being conceptionaly and functionally divided into several sub-sections along the tool axis (“zones” for brevity), wherein each zone has its own core form and its own cutting edges, its own teeth land form and its own zone cutting length, these being selected according to the perceived task for which each zone of the tool is to be optimized.

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Номер записи: 37
09-01-2014 дата публикации

Milling insert and a milling tool

Номер: US20140010606A1
Автор: Sågström Thomas, Sjöberg Sören
Принадлежит:

A milling insert and a milling tool for the milling of a slot in a work piece. The milling insert includes an under side, an opposite upper side that forms a chip surface and is parallel to an extension plane, and an edge side disposed between the upper side and the under side. A cutting edge, which extends between the edge side and the chip surface, has a primary main cutting edge, a secondary main cutting edge, and an end cutting edge. The end cutting edge connects the primary main cutting edge and the secondary main cutting edge and borders on the primary main cutting edge at a primary transition point and on the secondary main cutting edge at a secondary transition point. A normal to the extension plane of the chip surface forms an acute clearance angle with the edge side along the cutting edge. The end cutting edge is curved from the primary transition point to the secondary transition point. 2. A milling insert according to claim 1 , wherein a tangent of the end cutting edge and a tangent of the primary main cutting edge are parallel to and coincide with each other at the primary transition point claim 1 , and a tangent of the end cutting edge and a tangent of the secondary main cutting edge are parallel to and coincide with each other at the secondary transition point.3. A milling insert according to claim 1 , wherein the end cutting edge has at least one first radius.4. A milling insert according to claim 3 , wherein the first radius is constant in respect of the end cutting edge from the primary transition point to the secondary transition point.5. A milling insert according to claim 3 , wherein the end cutting edge has a second radius in respect of a first section claim 3 , which extends from the primary transition point to a central section of the end cutting edge claim 3 , and in respect of a second section claim 3 , which extends from the secondary transition point to the central section.6. A milling insert according to claim 5 , wherein the second ...

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Номер записи: 38
06-02-2014 дата публикации

METHOD OF MANUFACTURING ENDMILL TOOL

Номер: US20140033616A1
Автор: Cha In-Sun, Cha Soo-Il, Jang Dong-Bin
Принадлежит:

Disclosed is a method of manufacturing an endmill tool, including detecting a crystal direction of a selected natural diamond gemstone by inspecting the structure of the diamond gemstone, forming a lower base surface and an upper reference surface of the diamond gemstone by using abrading equipment after welding the diamond gemstone with a first sub-body, grinding an edge portion of the diamond gemstone by using grinding equipment after welding a machining tip, which is separated from the first sub-body, with a second sub-body to complete the machining tip having a cutting blade, and temporarily installing the machining tip, which is separated from the second sub-body, in a super hard body installed in setting equipment, adjusting an alignment state of the machining tip, and bonding the machining tip with the super hard body by using a normal-temperature bonding agent through a normal-temperature coagulation scheme to complete the endmill tool. 1. A method of manufacturing an endmill tool , the method comprising:detecting a crystal direction of a selected natural diamond gemstone by inspecting a structure of the selected natural diamond gemstone;forming a lower base surface and an upper reference surface of the natural diamond gemstone by performing an abrading process using an abrading equipment after welding the natural diamond gemstone with a first sub-body;grinding an edge portion of the natural diamond gemstone by using a grinding equipment after welding a machining tip, which is separated from the first sub-body, with a second sub-body to complete the machining tip having a cutting blade; andtemporarily installing the machining tip, which is separated from the second sub-body, in a super hard body installed in a setting equipment, adjusting an alignment state of the machining tip, and bonding the machining tip with the super hard body by using a normal-temperature bonding agent through a normal-temperature coagulation scheme to complete the endmill tool.2. The ...

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Номер записи: 39
20-02-2014 дата публикации

END MILL

Номер: US20140050541A1
Автор: Ohhashi Seiji, SUGANO Hiroto
Принадлежит: OSG CORPORATION

Providing an end mill for reducing the use of the cutting fluid to prevent the environmental pollution. 1. A square end mill comprising:a shank;a body provided next to the shank;a spiral groove recessed on an outer periphery of the body and spiraling about a center axis;a peripheral cutting blade formed along the spiral groove; andan end cutting blade provided next to the peripheral cutting blade and formed on a bottom portion of the body; andan intake path extending straight from a rear end surface of the shank to the body along the center axis, and having a circular cross section,wherein a diameter of the intake path is smaller than a blade diameter of the peripheral cutting blade and larger than a core diameter of the spiral groove, the diameter of the intake path is the same form the rear end surface to an extending top, and the intake path having an opening which opens along the spiral groove; andwherein a chip generated in cutting is aspirated from the opening and discharged from an aperture of the rear end surface of the shank by performing air intake via the intake path; andwherein the extending top of the intake path is separated from the bottom portion of the body in such a way that a distance between the extending top ot the intake parh and the bottom portion of the body is 50-85 percent of the blade diameter of the peripheral cutting blade.2. The square end mill according to claim 1 ,wherein the diameter of the intake path is equal to or less than 65 percent of the blade diameter of the peripheral cutting blade.3. The square end mill of claim 2 ,wherein the diameter of the intake path is 110-135 percent of the core diameter of the spiral groove.4. (canceled) This application is a Continuation of copending application Ser. No. 11/918,561, filed on Jan. 14, 2008. Application Ser. No. 11/918,561 based upon a PCT International Application No. PCT/JP2006/324032 filed on Nov. 30, 2006. The entire contents of each of the above documents is hereby incorporated ...

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Номер записи: 40
27-02-2014 дата публикации

CUTTING TOOL WITH REMOVABLE HEAD

Номер: US20140056658A1
Автор: KAJIWARA Yasuhiro, KOUMOTO Naoki, Maeda Kazuo, Mori Hideo
Принадлежит: Sumitomo Electric Hardmetal Corp.

A cutting head having a tapered shaft portion, a helical flute, and a flat shoulder surface is fastened to a shank having a front end surface, a tapered hole, and a helical flute through a fastening attachment in the form of a helical coil. The fastening attachment has a sectional shape substantially analogous in shape to a space defined between the helical flutes. The fastening attachment is fitted in one of the helical flutes, and is threaded into the other of the helical flutes until the shoulder surface is brought into close contact with the front end surface of the shank, and the outer peripheral surface of the tapered shaft portion is brought into close contact with the inner surface of the tapered hole, thus fastening the cutting head to the shank. 1. A cutting tool comprisinga detachable cutting head, a shank, and a fastening attachment comprising an elastic helical coil,wherein the cutting head includes a tapered shaft portion, a helical flute formed on an outer periphery of the tapered shaft portion, and a flat shoulder surface provided in the rear and extending radially outwardly from a root of the tapered shaft portion,wherein the shank includes a front end surface configured to be brought into abutment with the shoulder surface, a tapered hole which is open to the front end surface, the tapered shaft portion being configured to be fitted in the tapered hole, and a helical flute formed on an inner surface of the tapered hole so as to correspond to the helical flute formed on the outer periphery of the tapered shaft portion,wherein the fastening attachment has a sectional shape substantially analogous to the sectional shape of a space defined between the helical flute formed on the outer periphery of the tapered shaft portion and the helical flute formed on the inner surface of the tapered hole, andwherein the cutting head is configured to be fastened to the shank by fitting the fastening attachment in either one of the helical flute formed on the outer ...

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Номер записи: 41
13-03-2014 дата публикации

CUTTING TOOLS FOR CUTTING CURVED AND COMPLEX FEATURES

Номер: US20140069245A1
Автор: HUANG CHIEN-MING, LU Zhuojun, Tan Napthaneal Y., YunDi Yu
Принадлежит: Apple Inc.

The embodiments described herein relate to methods, systems, and structures for cutting a part to form a highly reflective and smooth surface. In some embodiments, the part includes substantially horizontal and vertical surfaces with edges and corners. In described embodiments, a diamond cutter can be used to cut a surface of the part during a milling operation where the diamond cutter contacts the part a number of times with each rotation of the spindle of a milling machine. In some embodiments, a complex feature having planar and curved surfaces is cut into a part. 1. A cutting tool assembly arranged to perform a cutting operation on a part , comprising:a tool holder configured to rotate about an axis;a first cutting tool attached to the tool holder at a first radial distance from the axis and comprising a first cutting edge, the first cutting edge having a straight cutting surface configured to cut a planar surface in the part;a second cutting tool attached to the tool holder at a second radial distance from the axis and comprising a second cutting edge having a curved cutting surface, the curved cutting surface characterized as having a radius of curvature, the curved cutting surface configured to cut a curved surface in the part adjacent to the planar surface.2. The cutting tool assembly of claim 1 , wherein at least one of the first and second cutters is comprised of mono crystalline diamond.3. The cutting tool assembly of claim 1 , wherein at least one of the first and second cutters is comprised of poly crystalline diamond.4. The cutting tool assembly of claim 1 , further comprising:a third cutting tool attached to the tool holder at a third radial distance from the axis comprising a third cutter comprising a third cutting edge having a second curved cutting surface, the second curved cutting surface characterized as having a second radius of curvature, the third cutting surface configured to cut a second curved surface in the part adjacent to the planar ...

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Номер записи: 42
13-03-2014 дата публикации

MILLING CUTTER

Номер: US20140072378A1
Автор: LI GUANG-TAO, LUO LIAO-NING, WANG ZUO-PING, YU SHEN-CHANG, ZHONG HAI-WANG
Принадлежит:

A combination milling bit and cutter employed to machine a distal end of a workpiece is provided, in which the milling cutter includes a handle and a cutting portion formed on an end of the handle. The cutting portion includes two cutting edges; at least one of the two cutting edges comprises one cutting sub-edge for milling the distal end of the workpiece to form an end surface, and another cutting sub-edge for chamfering the distal end of the workpiece at both an annular outer chamfering surface and an annular inner chamfering surface on the distal end. The combination milling and cutting cutter device carries out both milling and cutting actions in a single operation. 1. A milling cutter employed to mill a distal end of a workpiece , comprising:a handle; anda cutting portion formed on an end of the handle, wherein the cutting portion comprises two cutting edges, at least one of the two cutting edges comprises a first cutting sub-edge for chamfering the distal end of the workpiece to form an annular outer surface, and a second cutting sub-edge for milling the distal end of the workpiece.2. The milling cutter of claim 1 , wherein the first cutting sub-edge is directly connected to the second cutting sub-edge claim 1 , the first cutting sub-edge and the second cutting sub-edge cooperatively define an obtuse angle therebeween.3. The milling cutter of claim 2 , wherein the cutting edge further comprises a third cutting sub-edge claim 2 , the second cutting sub-edge interconnects the first cutting sub-edge and the third cutting sub-edge claim 2 , and is depressed toward the handle.4. The milling cutter of claim 3 , wherein the third cutting sub-edge and the second cutting sub-edge cooperatively define an obtuse angle therebeween claim 3 , the first cutting sub-edge is located adjacent to a periphery of the cutting portion claim 3 , the third cutting sub-edge is located adjacent to a center of the cutting portion.5. The milling cutter of claim 4 , wherein the two ...

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Номер записи: 43
20-03-2014 дата публикации

CUTTING INSERT, CUTTING TOOL, AND METHOD OF MANUFACTURING MACHINED PRODUCT USING THE SAME

Номер: US20140076117A1
Автор: Shibata Masahiro
Принадлежит:

A cutting insert of an embodiment of the present invention includes an upper surface, a lower surface, a side surface connected to each of the upper surface and the lower surface, and an upper cutting edge located at an intersection of the upper surface and the side surface. The lower surface includes a mount part having alternately three first top portions spaced a distance a away from a central axis extending between the upper and lower surfaces and three second top portions spaced a distance b away from the central axis in a bottom view. The mount part further has a concave part including at least the central axis. The second top portions are located closer to the upper surface than the first top portions. A cutting tool with the cutting insert, and a method of manufacturing a machined product by using the cutting tool are also provided. 1. A cutting insert , comprising:an upper surface;a lower surface;a side surface connected to each of the upper surface and the lower surface; andan upper cutting edge located at an intersection of the upper surface and the side surface, wherein 'a mount part comprising alternately three first top portions spaced a distance a away from a central axis extending between the upper and lower surfaces and three second top portions spaced a distance b away from the central axis in a bottom view, the mount part further comprising a concave part including at least the central axis, and', 'the lower surface comprises'}the second top portions are located closer to the upper surface than the first top portions.2. The cutting insert according to claim 1 , wherein the mount part in its entirety corresponds to the concave part.3. The cutting insert according to claim 1 , wherein the distance a and the distance b have a relationship of a>b in a bottom view.4. The cutting insert according to any one of claim 1 , wherein in the mount part claim 1 , an angle formed by the central axis and a first extension line obtained by extending the first top ...

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Номер записи: 44
07-01-2021 дата публикации

Abutment Tool Set, And Device For Producing Dental Replacements

Номер: US20210000576A1
Автор: Arnd Peschke, Goran Burger
Принадлежит: IVOCLAR VIVADENT AG

Device for producing tooth replacements, which device has a milling cutter (36) for shaping the front face of the tube portion (16), which milling cutter (36) has at least one abutment face which is intended to bear at least indirectly on a surface of the abutment (10), in particular on the collar (14) of the abutment, and via which milling cutter (36) the length or height of the tube portion (16) of the abutment (10) can be fixed, in particular the tube portion can be shaped. Tool set consisting of a milling cutter (36) and of a sleeve (42), wherein at least one abutment face (76) is formed on the milling cutter and extends towards the sleeve (42), and wherein the sleeve (42) has a supporting face (78), in particular for supporting on an abutment (10).

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Номер записи: 45
06-01-2022 дата публикации

CUTTING INSERT, CUTTING TOOL AND METHOD FOR MANUFACTURING MACHINED PRODUCT

Номер: US20220001467A1
Автор: MAO Shohei
Принадлежит:

A cutting insert may include a base including a first surface, a second surface and a lateral surface. The first surface may include a first corner, a second corner and a first side. The first side may include a first portion, a second portion, a third portion and a fourth portion in this order in a direction from the first corner to the second corner. An imaginary straight line being in contact with the first portion may be a reference line in a front view of the first surface. Inclination angles of the first portion, the second portion, the third portion and the fourth portion relative to the reference line may be respectively a first angle, a second angle, a third angle and a fourth angle. The third angle may be smaller than each of the second angle and the fourth angle. 1. A cutting insert , comprising: a first surface having a polygonal shape,', 'a second surface located on a side opposite to the first surface, and', 'a lateral surface located between the first surface and the second surface, wherein, 'a base comprising'} a first corner,', 'a second corner located adjacent to the first corner, and', 'a first side located between the first corner and the second corner,, 'the first surface comprises'}the lateral surface comprises a first lateral surface which is located from the first side to the second surface and comprises a first rake surface region, a first portion extended from the first corner toward the second corner,', 'a second portion located closer to the second corner than the first portion,', 'a third portion located closer to the second corner than the second portion, and', 'a fourth portion extended from the second corner toward the first corner,, 'the first side comprises'} an imaginary straight line being in contact with the first portion at an end portion on a side of the first corner is a reference line,', 'the second portion and the fourth portion are individually inclined relative to the reference line so as to be located away from the ...

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Номер записи: 46
07-01-2021 дата публикации

MILLING CUTTER WITH BRACES

Номер: US20210001414A1
Автор: Schornik Vaclav, Zetek Miroslav
Принадлежит:

The milling cutter according to the present invention consists of insert holders where these insert holders project from a carrier disc which is adapted for clamping onto the spindle of a machine tool, and the individual holders are connected with one another by braces. Arms are provided between the holders and the carrier disc, 1. A milling cutter comprising:(a) a carrier disc adapted for clamping onto a spindle of a machine tool;(b) a plurality of insert holders;(c) a plurality of braces that connect the insert holders;(d) a plurality of arms disposed between the insert holders and the carrier disc;(e) a collar that does not project beyond an envelope of inserts, wherein the insert holders are arranged around the collar; and(f) a plurality of stiffeners disposed between the insert holders and the collar,further comprising struts disposed between the arms and the braces, with each strut connecting a respective one of the arms to a respective one of the braces.2. The milling cutter according to claim 1 , said struts being disposed between the arms and the insert holders.3. The milling cutter according to claim 1 , further comprising nozzles protruding from the carrier disc.4. A milling cutter comprising:(a) a carrier disc adapted for clamping onto a spindle of a machine tool;(b) a plurality of insert holders spaced circumferentially relative to one another;(c) a plurality of braces that connect the insert holders;(d) a plurality of arms, with each arm connecting the carrier disc and a respective insert holder;(e) a collar that does not project beyond an envelope of inserts, wherein the insert holders are arranged around the collar; and(f) a plurality of radially-extending stiffeners connected to the collar and to respective insert holders.5. The milling cutter according to claim 4 , further comprising struts disposed between the arms and the braces.6. The milling cutter according to claim 5 , each of said struts connecting a respective one of the arms to a ...

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Номер записи: 47
07-01-2021 дата публикации

CUTTING TOOL AND METHOD FOR MANUFACTURING MACHINED PRODUCT

Номер: US20210001415A1
Автор: Hatta Kaoru, KAWANAMI Shoji
Принадлежит: KYOCERA CORPORATION

A cutting tool may have a columnar shape extended along a rotation axis from a first end toward a second end, and may include a holder, a first insert and a second insert. The holder may include a first pocket, a second pocket, a first flute and a second flute. The second pocket may be located closer to the second end than the first pocket. The first flute may be extended along the first pocket. The second flute may be extended along the second pocket. A first length from the rotation axis to the first flute may be smaller than a second length from the rotation axis to the second flute. An opening width of the first flute may be smaller than an opening width of the second flute. 1. A cutting tool , having a columnar shape extended along a rotation axis from a first end toward a second end and comprising: a first pocket located on a side of the first end,', 'a second pocket located closer to the second end than the first pocket,', 'a first flute extended along the first pocket from the first end toward the second end, and', 'a second flute extended along the second pocket from the first end toward the second end;, 'a holder comprising'}a first insert located in the first pocket; anda second insert located in the second pocket, whereina length from the rotation axis to the first flute in a first cross section that is orthogonal to the rotation axis and includes the first flute is a first length,a length from the rotation axis to the second flute in a second cross section that is orthogonal to the rotation axis and includes the second flute is a second length,the first length is smaller than the second length,an opening width of the first flute in the first cross section is a first opening widthan opening width of the second flute in the second cross section is a second opening width, andthe first opening width is smaller than the second opening width.2. The cutting tool according to claim 1 , wherein a width of the first insert in a radial direction of the holder is ...

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Номер записи: 48
07-01-2021 дата публикации

END MILL FOR ORBITAL HOLE GENERATION WITH EDGE RELIEF

Номер: US20210001416A1
Автор: Chan Kwok Tung, Sisco Tanni
Принадлежит:

An example end mill includes a shaft, a cutting head positioned on one end of the shaft, and an edge relief cutting head positioned on the shaft spaced apart from the cutting head. The portion of the shaft between the cutting head and the edge relief cutting head has a diameter that is less than the diameters of the cutting head and the edge relief cutting head. The end mill is rotated around a longitudinal axis of the end mill and revolved around a central axis of a hole to be cut, with the longitudinal axis radially offset from the central axis, to cut the hole with the cutting head and cut an edge relief in a leading edge of the hole with the edge relief cutting head. 1. An end mill , comprising:a shaft;a cutting head positioned on one end of the shaft; andan edge relief cutting head positioned on the shaft and spaced apart from the cutting head;wherein a portion of the shaft between the cutting head and the edge relief cutting head has a diameter that is less than a diameter of the cutting head and less than a diameter of the edge relief cutting head.2. The end mill of claim 1 , wherein the cutting head is removably secured to the shaft.3. The end mill of claim 1 , wherein the edge relief cutting head is removably secured to the shaft.4. The end mill of claim 1 , wherein the edge relief cutting head includes replaceable cutting inserts.5. The end mill of claim 1 , wherein the edge relief cutting head is configured to produce one of a fillet edge or a chamfer edge.6. The end mill of claim 1 , wherein the cutting head and the edge relief cutting head are integral and unitary with the shaft.7. A method claim 1 , comprising:rotating an end mill around a longitudinal axis of the end mill, the end mill having a shaft defining the longitudinal axis;revolving the end mill about a central axis of a hole to be cut with the longitudinal axis of the end mill parallel to and radially offset a first radial distance from the central axis of the hole;cutting the hole with a ...

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Номер записи: 49
07-01-2016 дата публикации

ROTARY MILLING TOOL

Номер: US20160001382A1
Автор: Sato Nozomu, TAKAHASHI Shoichi
Принадлежит: UNION TOOL CO.

Provided is a rotary milling tool capable of finishing a milled surface to produce a smooth and glossy surface. A rotary milling tool in which a plurality of chip discharge grooves () are provided to the outer periphery of a tip part of a tool body (), the plurality of chip discharge grooves () extending from the tool tip toward the tool base, and bottom blades () are provided to an intersection ridge part at the intersection of a rake surface () of the chip discharge grooves () and a tip flank surface () of the tool body (), each of the bottom blades () being formed integrally with the tool body (), wherein a convex edge () that is convex toward a tool-axis-direction tip is formed on at least one of the bottom blades (), and the convex edge () is formed by the connection of a plurality of linear edges that are substantially linear. 1. A rotary milling tool in which a plurality of chip discharge grooves are provided to the outer periphery of a tip part of a tool body , the plurality of chip discharge grooves extending from the tool tip toward the tool base , and bottom blades are provided to an intersection ridge part at the intersection of a rake surface of the chip discharge grooves and a tip flank surface of the tool body , each of the bottom blades being formed integrally with the tool body , wherein the rotary milling tool is characterized in that a convex edge that is convex toward a tool-axis-direction tip is formed on at least one of the bottom blades , and the convex edge is formed by the connection of a plurality of linear edges that are substantially linear.2. A rotary milling tool according to claim 1 , wherein the rotary milling tool is characterized in that the convex edge is obtusely formed by the connection of at least a linear edge gradually inclined upward toward the tool tip claim 1 , the linear edge extending from the outer periphery of the tool toward the center of the tool claim 1 , and a linear edge gradually inclined downward toward the tool ...

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Номер записи: 50
05-01-2017 дата публикации

CUTTING INSERT, CUTTING TOOL COMPRISING SUCH AN INSERT AND METHODS FOR PRODUCING AND REPAIRING SUCH A TOOL

Номер: US20170001267A1
Автор: GRUNDER Timothée, PIQUEREZ Anne
Принадлежит:

The invention relates to an insert brazed on a body of cutting tools (), consisting of: a metal substrate (), in the form of plates, having a surface for attachment to the tool body; a high-temperature, brazing, alloy layer (); an intermediate layer; and a ceramic plate (). The brazing alloy layer connects the metal substrate () of the ceramic plate () via the metal layer (). A low-temperature brazing layer () connects the insert (′) to the body of the tool (). 2111215) Cutting insert according to claim 1 , characterized in that the metal substrate () is connected to the brazing alloy layer () by means of a metal layer () claim 1 , based in particular on Ti.311) Cutting insert according to claim 1 , characterized in that the metal substrate () his of steel claim 1 , of nickel steel (C45) or of tungsten carbide (WC—Co).4101) Cutting tool consisting of a tool body () who is active surface is aligned with cutting inserts according to claim 1 ,{'b': 1', '1', '101', '16, 'tool characterized in that the cutting inserts (, ′) are connected to the tool body () by a low-temperature brazing alloy ().'}5) Cutting tool according to claim 6 , characterized in that the low-temperature brazing alloy is a silver-copper alloy (Ag—Cu) containing at least 60% by volume of silver (Ag).611) Production method of a cutting tool for working wood-based composite materials comprising a metal body designed for mounting to a machine and at least one cutting insert ( claim 6 , ′) integral with the tool body consisting in fastening the cutting insert to the metal tool body claim 6 , characterized in that it consists in:{'sub': 2', '3', '2', '2', '3', '2', '2, 'b': 14', '11', '14, 'a) using a plate made of at least one grade of ceramic oxide, chosen from a family of ceramic grades comprising alumina (A1O) or zirconia-yttria (3Y—ZrO) or a mixture of grades of ceramic oxides chosen from alumina (A1O), zirconia (ZrO) and zirconia-yttria (3Y—ZrO), (A) and a metal substrate plate (A) of approximately ...

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Номер записи: 51
04-01-2018 дата публикации

CUTTING TOOL WITH ENHANCED CHIP EVACUATION CAPABILITY AND METHOD OF MAKING SAME

Номер: US20180001398A1
Автор: Boulakhov Sergei Vladimir, Sharivker Leonid Boris
Принадлежит:

A milling cutter having a shank and a cutting head attached to the shank. The cutting head has a plurality of helical teeth, each tooth including a cutting tip, a leading face and a rear face. A flute is defined between the leading face of a trailing tooth, and a rear face of an immediately preceding tooth. A gully of the flute is generally W-shaped in cross section to provide effective chip evacuation. A method for manufacturing the milling cutter with the W-shaped gully of the flute using a split path grinding process is also disclosed. 112-. (canceled)13. A method of manufacturing a milling cutter , said method comprising:providing a grinding wheel which has a predetermined profile and is rotatable about an axis different from a longitudinal axis of the milling cutter;using the grinding wheel to grind a helical flute into an outer periphery of a cutter blank, via at least a first grinding path and a subsequent, second grinding path;wherein, via said first grinding path, the grinding wheel produces a leading face of a first tooth, and a first flute base;wherein, via said second grinding path, the grinding wheel produces a second flute base and thereby imparts a generally W-shaped cross-section to the helical flute.14. The method according to claim 13 , wherein the first grinding path and the second grinding path are calculated separately from one another claim 13 , using different sets of one or more input values.15. The method according to wherein claim 13 , via said second grinding path claim 13 , the grinding wheel produces a flute back claim 13 , the flute back comprising a rear face of a second tooth.16. The method according to wherein claim 13 , via said first grinding path claim 13 , the grinding wheel produces a positive or negative radial rake angle on the leading face of the first tooth.17. The method according to wherein claim 16 , in said first grinding operation claim 16 , the grinding wheel simultaneously produces:the positive or negative radial rake ...

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Номер записи: 52
04-01-2018 дата публикации

CUTTING TOOL AND TRIANGULAR-SHAPED INDEXABLE CUTTING INSERT THEREFOR

Номер: US20180001400A1
Автор: Men Yuri
Принадлежит: Iscar, Ltd.

An indexable cutting insert has opposing upper and lower end surfaces, and a peripheral surface including three side surfaces and three corner surfaces. Each corner surface intersects the upper end surface to form an upper cutting edge, and each side surface has a locating surface. The lower end surface has three radially outward facing lower abutment surfaces. The three locating surfaces define a first imaginary triangle having three first bisector planes and three locating planes, and the three lower abutment surfaces define a second imaginary triangle having three second bisector planes. None of the first and second bisector planes are coplanar, and each locating plane intersects two of the upper cutting edges. For each index position of the cutting insert in an insert receiving pocket of a cutting tool, one of the locating surfaces and one of the lower abutment surfaces is in contact with pocket walls thereof. 220. The cutting insert () according to claim 1 , wherein:{'sub': 'B', 'b': 1', '34, 'each first bisector plane (P) intersects one of the locating surfaces (), and'}{'sub': 'B', 'b': 2', '40, 'each second bisector plane (P) intersects one of the lower abutment surfaces ().'}3202612224. The cutting insert () according to claim 1 , wherein the entire peripheral surface () extends parallel to the central axis (A) and intersects both the upper and lower end surfaces ( claim 1 , ).420232. The cutting insert () according to claim 1 , wherein the second imaginary triangle (T) has three vertical abutment planes (P) claim 1 , each vertical abutment plane (P) being perpendicular to the median plane (M) claim 1 , containing one of the three second sides claim 1 , and intersecting one of the upper cutting edges ().52034. The cutting insert () according to claim 1 , wherein the horizontal lower plane (P) intersects the three locating surfaces ().620121211. The cutting insert () according to claim 1 , wherein the first and second bisector planes (P claim 1 , P) ...

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Номер записи: 53
02-01-2020 дата публикации

SURFACE ROUGHENING TOOL WITH TRANSLATABLE SWAGING BLADES

Номер: US20200001380A1
Автор: Stephenson David Alan
Принадлежит:

A surface roughening tool includes a cylindrical body and at least one grooving blade outwardly radially projecting from the body and configured to form grooves and peaks into a surface. The surface roughening tool also includes at least one swaging blade outwardly radially projecting from the body and configured to deform the peaks. The at least one swaging blade is aligned with the at least one grooving blade along a circumference of the body. 1. A surface roughening tool comprising:a cylindrical body;at least one grooving blade outwardly radially projecting from the body and configured to form grooves and peaks into a surface; andat least one swaging blade outwardly radially projecting from the body, aligned with the at least one grooving blade along a circumference of the body, configured to deform the peaks.2. The tool of claim 1 , wherein the at least one swaging blade is translatable between a retracted position and an extended position.3. The tool of claim 2 , further comprising an actuator configured to translate the at least one swaging blade from the retracted position to the extended position.4. The tool of claim 2 , wherein each of the at least one grooving and swaging blades includes a distal end claim 2 , and when the at least one swaging blade is in the extended position claim 2 , the distal end of each of the at least one swaging blades extends beyond the distal end of each of the at least one grooving blades in a radial direction of the cylindrical body.5. The tool of claim 1 , wherein the at least one grooving blade is translatable between a retracted position and an extended position.6. The tool of claim 5 , further comprising an actuator configured to translate the at least one grooving blade from an extended position to a retracted position.7. The tool of claim 5 , wherein each of the at least one grooving and swaging blades includes a distal end claim 5 , and when the at least one grooving blade is in the extended position claim 5 , the distal ...

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Номер записи: 54
03-01-2019 дата публикации

CUTTING TOOL

Номер: US20190001423A1
Автор: HIGASHI Taisuke, KANDA Takashi, Kukino Satoru, MATSUDA Yusuke
Принадлежит:

A cutting tool includes a shaft portion and a plurality of edge region groups. The ridgeline between the first rake face portion and the first flank face portion constitutes a first cutting edge portion. The ridgeline between the second rake face portion and the second flank face portion constitutes a second cutting edge portion. As seen from the direction perpendicular to a plane tangent to the outer peripheral surface, in a state where the central axis overlaps a first end on the front end side of the first cutting edge portion, the inclination angle of the first cutting edge portion relative to the central axis is larger than the inclination angle of a straight line relative to the central axis, the straight line connecting the first end to a second end on the front end side of the second cutting edge portion. 1. A cutting tool comprising:a shaft portion extending along a central axis and including an outer peripheral surface surrounding the central axis; anda plurality of edge region groups spirally provided on the outer peripheral surface,the plurality of edge region groups including a first edge region group divided by a first nick,the first edge region group including a first edge region and a second edge region that is adjacent to the first edge region, with the first nick lying between the first edge region and the second edge region,the first edge region including a first rake face portion and a first flank face portion that is continuous with the first rake face portion, a ridgeline between the first rake face portion and the first flank face portion constituting a first cutting edge portion,the second edge region including a second rake face portion and a second flank face portion that is continuous with the second rake face portion, a ridgeline between the second rake face portion and the second flank face portion constituting a second cutting edge portion,as seen from a direction perpendicular to a plane tangent to the outer peripheral surface, in a ...

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Номер записи: 55
01-01-2015 дата публикации

CUTTING INSERT AND A TOOL HOLDER WITH A SEAT FOR CUTTING INSERT

Номер: US20150003922A1
Автор: Orlov Alexander
Принадлежит: Vargus Ltd.

The invention relates to a cutting insert () having a first coupling structure and a tool holder () having a complementary second coupling structure with a seat () for a milling tool system and a milling tool system comprising a cutting insert () and a holder (), wherein the first coupling structure comprises a circular cylindrical element () with a cylinder abutment surface, the circular cylindrical element () projecting axially from a bottom surface () of a central body () and being arranged concentrically with respect to the central axis (A), a perpendicular abutment surface () arranged perpendicular to the central axis (A), and at least two ribs () projecting axially from the bottom surface () each having a contact area with a normal direction at least essentially perpendicular to the central axis (A) for opposing a torque about the central axis (A). 1. A cutting insert having a central body , at least one cutting tooth radially projecting from the central body , a central thru hole concentrically arranged with respect to a central axis (A) for receiving a fixing screw , and a coupling structure for coupling the insert to a tool holder and for transmitting a torque from the tool holder to the cutting insert , wherein the coupling structure comprisesa circular cylindrical element with a cylinder abutment surface, the circular cylindrical element projecting axially from a bottom surface of the central body and being arranged concentrically with respect to the central axis (A),a perpendicular abutment surface arranged perpendicular to the central axis (A), andat least two radially extending ribs projecting axially from the bottom surface each having a contact area with a normal direction at least essentially perpendicular to the central axis (A) for opposing a torque about the central axis (A).2. The cutting insert according to claim 1 , wherein the cylindrical abutment surface of the circular cylindrical element is a full perimeter abutment surface claim 1 , which ...

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Номер записи: 56
12-01-2017 дата публикации

END MILL AND METHOD OF MANUFACTURING MACHINED PRODUCT

Номер: US20170008098A1
Автор: Kuroda Masahiko
Принадлежит: KYOCERA CORPORATION

An end mill includes a body including an axis, first cutting edges on a side of a front end of the body, second cutting edges at a rear side of the respective first cutting edges, flutes located along the second cutting edges, and heels located along the flutes. A shape of each of the flutes in a cross section includes a first concave curve on a side of the second cutting edges, a second concave curve on a side of the heels, and a protrusion located between the two concave curves, the protrusion includes two concave curves intersect each other, and a ratio of a distance from a circle including a maximum diameter in the body centered on the axis to a top of the protrusion to a distance H from the circle to the second cutting edge is 0.1 to 0.4. 1. An end mill comprising:a body having a rotation center axis;three or more first cutting edges located at a front end side of the body;second cutting edges located at a rear side of the respective first cutting edges;flutes located along the respective second cutting edges; andheels located along the respective flutes at a front in a rotation direction of the rotation center axis, whereina cross sectional shape of each of the flutes comprises a first concave curve located on a side of a corresponding one of the second cutting edges, a second concave curve located on a side of a corresponding one of the heels, and a protrusion located between the first concave curve and the second concave curve,the protrusion comprises two concave curves intersect each other, anda ratio (h/H) of a distance h from a circle c comprising a maximum diameter capable of being drawn in the body centered on the rotation center axis to a top of the protrusion to a distance H from the circle c to the second cutting edge is 0.1 to 0.4 in a cross sectional view perpendicular to the rotation center axis.2. The end mill according to claim 1 , further comprisingrake surfaces having a flat shape and located between the respective first cutting edges and the ...

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Номер записи: 57
12-01-2017 дата публикации

INSERT AND INDEXABLE ROTARY CUTTING TOOL

Номер: US20170008099A1
Автор: Touma Syoujirou
Принадлежит: Mitsubishi Hitachi Tool Engineering, Ltd.

A substantially parallelogramatic insert having a downward inclined main cutting edge and an auxiliary cutting edge in part of a long-side ridgeline and a short-side ridgeline adjacent to a pair of corner cutting edges of an upper surface; the main cutting edge being constituted by first to third straight cutting edges; the first to third straight cutting edges being connected in a bent-line shape with inward obtuse crossing angles when viewed from above, such that the second straight cutting edge is positioned outermost; and cutting edge angles β, β, βbetween the rake faces and flanks of the first to third straight cutting edges meeting the relation of β>β>β. 1. An insert comprising substantially parallelogramatic upper and lower surfaces , and a screw-receiving hole penetrating from said upper surface to said lower surface;a pair of corner portions of said upper surface having corner cutting edges;part of a long-side ridgeline and a short-side ridgeline adjacent to said corner cutting edge having a main cutting edge and an auxiliary cutting edge both inclined downward;said upper surface having rake faces for said main cutting edge and said auxiliary cutting edge;said side surface having flanks for said main cutting edge and said auxiliary cutting edge;said main cutting edge being constituted by first to third straight cutting edges;said first to third straight cutting edges being connected in a bent-line shape with inward obtuse crossing angles when viewed from above, such that said second straight cutting edge is positioned outermost; and{'sub': 1', '2', '3', '1', '2', '3, 'a cutting edge angle βbetween the rake face and flank of said first straight cutting edge, a cutting edge angle βbetween the rake face and flank of said second straight cutting edge, and a cutting edge angle βbetween the rake face and flank of said third straight cutting edge meeting the relation of β>β>β.'}2. The insert according to claim 1 , wherein said main cutting edge being as long as ...

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Номер записи: 58
12-01-2017 дата публикации

CUTTING INSERT AND CUTTING TOOL

Номер: US20170008100A1
Автор: OIKAWA Yuki
Принадлежит: TUNGALOY CORPORATION

A cutting insert has an upper surface (), a lower surface () and a side surface () that connects the two surfaces. A cutting edge is formed at an intersecting edge between the upper surface () and the side surface (). The cutting edge includes at least a major cutting edge (), a corner edge () connected to the major cutting edge (), and a curved wiper edge () located on the opposite side of the major cutting edge () across the corner edge (). A first angle θ made by the major cutting edge () and the chord of the wiper edge () is 155°≦θ<180°, and a positive land is formed in the wiper edge (). The cutting edge may further include an inner cutting edge () located on an opposite side of the corner edge () across the wiper edge (). 1102191612191. A cutting insert () comprising an upper surface () , a lower surface () , and a side surface () that connects the upper surface () and the lower surface () , wherein:{'b': 21', '61, 'a cutting edge is formed at an intersecting edge between the upper surface () and the side surface ();'}{'b': 33', '34', '33', '35', '33', '34, 'the cutting edge is at least comprised of a major cutting edge (), a corner edge () connected to the major cutting edge (), and an outwardly-curved wiper edge () located on an opposite side of the major cutting edge () across the corner edge ();'}{'b': 33', '35, 'an angle θ made by the major cutting edge () and a chord of the wiper edge () is 155°≦0<180°; and'}{'b': 41', '35', '41, 'a land () is formed in the wiper edge (), the land () being a positive land.'}2102191612191. A cutting insert () comprising an upper surface () , a lower surface () , and a side surface () that connects the upper surface () and the lower surface () , wherein:{'b': 21', '61, 'a cutting edge is formed at an intersecting edge between the upper surface () and the side surface ();'}{'b': 33', '34', '33', '35', '33', '34, 'the cutting edge is at least comprised of a major cutting edge (), a corner edge () connected to the major ...

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Номер записи: 59
14-01-2016 дата публикации

OUTSIDE CHAMFERING TOOL

Номер: US20160008890A1
Автор: Rishton John E.
Принадлежит:

Improvements in an outside chamfering tool are disclosed. The outside chamfering tool is made from an assembly of pieces. The outside chamfering tool uses multiple removable and replaceable cutters. The use of multiple cutters allows the cutters to create an outside chamfer to a point. The multiple cutters help to center the part being machined by loading the part being chamfered on multiple sides. The outside chamfering tool uses four cutters placed on 90 degree quadrants. The cutting surfaces are resharpened by pushing or pulling the cutting tools out of the holder and then grasping the cutter bits in a grinder where a new cutting surface can be formed on each of the cutting surfaces collectively or individually. The cutting surfaces nest together within the holder with slight interference or friction forces hold the cutters in position. 1. An outside chamfering tool comprising:a tool holder having an elongated shank with a first end having an outer diameter;said tool holder further having a second end with a recessed pocket;said recessed pocket configured for receiving a plurality of replaceable cutting bits, andsaid cutting bit being removable retained in said recessed pocket and having at least one angled cutting surface.2. The outside chamfering tool according to wherein there are four cutting bits.3. The outside chamfering tool according to wherein said cutting bits are configured in 90 degree sectors and nest in said recessed pocket.4. The outside chamfering tool according to wherein said cutting bit has two sides that are perpendicular and an arc that has a radius that is equal to a radius on either of said two sides.5. The outside chamfering tool according to wherein said at least one cutting angle is flat.6. The outside chamfering tool according to wherein all four cutting bits are identical.7. The outside chamfering tool according to wherein said four cutting bits are placed into said holder rotated 90 degrees.8. The outside chamfering tool according to ...

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Номер записи: 60
11-01-2018 дата публикации

CUTTER HOLDER WITH VIBRATION RESISTANT STRUCTURE

Номер: US20180009042A1
Автор: Chen Ching-Ting
Принадлежит:

A cutter holder has a body and a damping assembly. The damping assembly is contained inside the body. The damping assembly has a central damping pole and six auxiliary damping poles. The six auxiliary damping poles are arranged around the central damping pole. The body has a specific weight. The central damping pole has a specific weight larger than the specific weight of the body. Each one of the six auxiliary damping poles has a specific weight larger than the specific weight of the body. The damping assembly is utilized to reduce vibrations caused by machining. 1. A cutter holder comprising: a specific weight;', 'a longitudinal direction;', 'a first end;', 'a second end being opposite the first end of the body in the longitudinal direction of the body and having a flat end face;', 'a guiding hole axially defined inside the body and extending from the first end of the body toward the second end of the body; and', 'a receiving hole axially defined inside the body and communicating with the guiding hole;, 'a body having'} [ a specific weight being larger than the specific weight of the body;', 'two opposite ends; and', 'a channel axially defined through the central damping pole, extending to the two opposite ends of the central damping pole, and communicating with the guiding hole;', 'two covers respectively connected to the two opposite ends of the central damping pole;, 'a central damping pole having the same longitudinal direction as the body and having'}, a specific weight being larger than the specific weight of the body; and', 'two opposite ends respectively connected to the two covers;, 'at least two auxiliary damping poles arranged between the two covers, and each of the at least two auxiliary damping poles having the same longitudinal direction as the body and having'}], 'a damping assembly contained in the receiving hole and having'} 'a fastening unit connected to the second end of the body; and', 'a fastening assembly having'} 'a cutter connected to the ...

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Номер записи: 61
11-01-2018 дата публикации

CERAMIC MILLING CUTTER

Номер: US20180009043A1
Автор: DAVID Emmanuel, SANDALDJIAN Camille
Принадлежит:

A milling device is rotatable in one direction around a longitudinal center axis defining a forward direction and an opposite rearward direction, and includes a front part and a rear part. The front part has cutting edges, each having a longitudinal extension, and chip flutes, each having a longitudinal extension. The front part is made of a monolithic piece of ceramic. The rear part is configured to be fixed in a rotatable tool body or a rotatable chuck. The rear part is also made of a monolithic piece of cemented carbide. A front end surface of the rear part has a smaller area than a rear end surface of the front part. The front end surface of the rear part and a rear end surface of the front part are permanently bonded or brazed to each other by a joint. 1. A milling device , rotatable in one direction around a longitudinal center axis defining a forward direction and an opposite rearward direction , comprising:a front part including a plurality of cutting edges, the front part having a longitudinal extension, the front part including a plurality of chip flutes each having a longitudinal extension, wherein the front part is made of a monolithic piece of ceramic; anda rear part configured to be fixed in a rotatable tool body or a rotatable chuck, wherein the rear part is made of a monolithic piece of cemented carbide, a front end surface of the rear part having a smaller area than a rear end surface of the front part, the front end surface of the rear part and a rear end surface of the front part being permanently bonded or brazed to each other by a joint.2. The milling device according to claim 1 , wherein the rear part has a thread for fixing the milling device in a corresponding thread in a rotatable tool body claim 1 , wherein the rear part includes radially external grip surfaces arranged to be engaged by a key or wrench when fixing the milling device in and releasing the milling device from the tool body through a rotational movement claim 1 , and the grip ...

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Номер записи: 62
11-01-2018 дата публикации

STAR-SHAPED CUTTING INSERT FOR A FRONT AND BACK CHAMFERING ROTARY MILLING CUTTER

Номер: US20180009044A1
Автор: KOIFMAN ALEXANDER, PASSOV Alexander, PETRILIN Andrei
Принадлежит:

A front and back chamfering rotary milling cutter includes a cutter body including an insert pocket and a star-shaped indexable cutting insert releasably retained in the pocket. The cutting insert has star-shaped upper and lower surfaces connected by a peripheral surface intersecting each of the upper and lower surfaces. The cutting insert includes a plurality of circumferentially alternating inner and outer corner portions. A cutting portion is defined by each outer corner portion together with an adjacent first inner corner portion rotationally forward thereof and an adjacent second inner corner portion located rotationally rearward thereof. Each cutting portion includes a front chamfering cutting edge extending from the outer corner portion to the first inner corner portion and a back chamfering cutting edge extending from the outer corner portion to the second inner corner portion. 1202020. A front and back chamfering rotary milling cutter () , having an axis of rotation (A) around which the rotary milling cutter () rotates in a direction of rotation (R) , the axis of rotation (A) extending in a forward (D) to rearward direction (D) , the rotary milling cutter () comprising:{'b': 22', '30, 'a cutter body () comprising an insert pocket (); and'}{'b': 32', '30', '32, 'claim-text': [{'b': 42', '44', '46, 'opposing insert top and bottom surfaces (, ) and an insert peripheral surface () extending therebetween;'}, {'b': 42', '44, 'a centrally located insert axis (C) extending through the insert top and bottom surfaces (, );'}, {'b': 50', '52', '52', '50, 'claim-text': [{'b': 50', '52', '52', '54, 'i': a', 'b, 'each outer corner portion () together with an adjacent first inner corner portion () rotationally forward thereof and an adjacent second inner corner portion () located rotationally rearward thereof define a cutting portion ();'}, {'b': 54', '58', '42', '46, 'each cutting portion () comprising a cutting edge () formed at the intersection of the insert top and ...

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Номер записи: 63
11-01-2018 дата публикации

ROTO PEENING ORBITAL DRILLING TOOL

Номер: US20180009082A1
Автор: Farrell Nicholas R., Gamboa James D., Holleman Wesley E., Lipczynski Gary
Принадлежит:

A machining tool incorporates a shaft having a first end configured to fit into a machining collet. A cutting portion extends from a second end of the shaft. A residual stress inducer is located between the first and second ends and includes a torsion element joined to the shaft at a connection end. A carbide tip is present on a free end opposite the connection end and the torsion element is configured such that a selected rotational speed, altered from a normal cutting speed, causes the carbide tip of the torsion element to contact a workpiece surface. 1. A machining tool comprising:a shaft having a first end configured to fit into a machining collet;a cutting portion extending from a second end of the shaft;a residual stress inducer located between the first and second ends, the residual stress inducer having:a torsion element joined to the drilling tool at a connection end;a carbide tip on a free end opposite the connection end,the torsion element configured such that a selected rotational speed, altered from a normal cutting speed, causes the carbide tip of the torsion element to contact a workpiece surface.2. The machining tool as defined in wherein the carbide tip comprises a plurality of carbide balls.3. The machining tool as defined in further comprising a flexible element intermediate the carbon balls and a body of the torsion element.4. The machining tool as defined in wherein the flexible element comprises a fabric flap.5. The machining tool as defined in further comprising a rotational element connecting the connection end of the torsional element to the shaft.6. The machining tool as defined in wherein the rotational element comprises a hinge.7. The machining tool as defined in wherein the rotational element comprises a rotary spring.8. The machining tool as defined in further comprising a spring providing centripetal force urging a body portion of the torsion element toward the shaft.9. The machining tool as defined in wherein the residual stress ...

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Номер записи: 64
10-01-2019 дата публикации

SCREW THREAD CUTTER

Номер: US20190009352A1
Автор: Iharada Yuuki, Yokokawa Mitsuhiro
Принадлежит:

In a screw thread cutter, a screw thread-cutting edge is formed on an outer periphery of a tip portion of a cutter body. Finishing edge-thread ridge height from a tangent line passing through valley bottoms of second and third valley portions to outer peripheral ends of first and second finishing edges are equal to each other. A preceding edge-thread ridge height from the tangent line to an outer peripheral end of a preceding edge is lower than each of the finishing edge-thread ridge height. A first valley portion-depth from the outer peripheral end of the first finishing edge to the valley bottom of the first valley portion is deeper than a second valley portion-depth from the outer peripheral end of the second finishing edge to the valley bottom of the second valley portion. 1. A screw thread cutter ,wherein at least three screw thread-cutting edges which protrude toward an outer peripheral side of a cutter body rotated around an axis are formed on an outer periphery of a tip portion of the cutter body to be arranged in an axial direction,wherein among the plurality of screw thread-cutting edges, the screw thread-cutting edge positioned on a tip side in the axial direction is a preceding edge,wherein among the plurality of screw thread-cutting edges, the screw thread-cutting edge positioned on a posterior end side in the axial direction with respect to the preceding edge is a first finishing edge,wherein among the plurality of screw thread-cutting edges, the screw thread-cutting edge positioned on a posterior end side in the axial direction with respect to the first finishing edge is a second finishing edge,wherein a first valley portion which is recessed toward an inner peripheral side of the cutter body is formed between the preceding edge and the first finishing edge,wherein a second valley portion which is recessed toward the inner peripheral side of the cutter body is formed between the first finishing edge and the second finishing edge,wherein a third valley ...

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Номер записи: 65
03-02-2022 дата публикации

Ball end mill and cutting insert

Номер: US20220032381A1
Автор: Yasuhito Fujii, Yasuyuki Endoh
Принадлежит: OSG Corp

Large diameter edges formed in arc shapes having curvature radii larger than a ball radius are provided. This allows improving surface roughness of a machined surface by cutting of a planar surface with the respective large diameter edges compared with cutting of a planar surface with a ball end cutting edge formed in an arc shape having a single curvature radius. Further, since the respective large diameter edges are formed in the arc shape, compared with cutting of a curved surface with linear cutting edges, surface roughness of a machined surface can be improved by cutting a curved surface with the respective large diameter edges. Accordingly, a pick feed during the cutting of the planar surface and the curved surface with the respective large diameter edges can be increased, and therefore machining efficiency in the cutting of both of the planar surface and the curved surface can be improved.

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Номер записи: 66
19-01-2017 дата публикации

Assembly-type cutter

Номер: US20170014917A1
Автор: Hsin-Tien Chang
Принадлежит: Individual

An assembly-type cutter includes a shank and a cutter head. The shank has a hole at one end. The hole has a receiving portion, which includes an internal thread and can be treated thermally for increased rigidity. The cutter head has a cutting portion and a connecting portion at opposite ends respectively. The connecting portion includes a threaded member and can also be treated thermally for increased rigidity. The cutter head and the shank are threadedly connectable via the connecting portion and the receiving portion. The threaded member includes a body portion, whose diameter is defined as a root diameter, and an external thread on the body portion. The body portion is slightly tapered such that a locus of the root diameter is inclined.

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Номер записи: 67
19-01-2017 дата публикации

Indexable rotary cutting tool

Номер: US20170014918A1
Автор: Takahiro Aso
Принадлежит: Tungaloy Corp

A cylindrical tool body has a peripheral surface provided with one or more spiral grooves extending from a base end side to a leading end side. The grooves each have a plurality of insert seats which are shifted relative to one another from the base end side toward the leading end side. The insert seats each have a bottom surface, a first side surface of length L 1, and a second side surface of length L 2. The first side surface faces the tool body's base end side, and the second side surface faces the tool body's leading end side and is located on the base end side with respect to the first side surface. In at least one insert seat located closer to the base end side than an insert seat located closest to the tool body's leading end side, the first side surface is longer than the second side surface.

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Номер записи: 68
19-01-2017 дата публикации

DOUBLE-SIDED MILLING CUTTING INSERT AND MILLING TOOL

Номер: US20170014919A1
Автор: Bazillion Damien, KISTER FABIEN
Принадлежит:

A double-sided milling cutting insert has a first cutting edge disposed at an intersection of a top side and a side surface and a second cutting edge disposed at an intersection of a bottom side and the side surface. Each of the first and second cutting edges contains three cutting edge portions which are useable by indexing. The cutting edge portions each have a cutting corner, a main cutting edge adjacent to one side of the cutting corner, and a wiper edge adjacent to the other side of the cutting corner. The main cutting edge and the wiper edge are each inclined towards a reference plane with increasing distance from the cutting corner such that the first and second cutting edges have the largest distance to the reference plane in the regions of the cutting corners. The side surface has main clearance surfaces, secondary clearance surfaces, and curved corner surfaces. 111-. (canceled)12. A double-sided milling cutting insert comprising:a top side;a bottom side;a side surface;a first cutting edge disposed at an intersection of said top side and said side surface;a second cutting edge disposed at an intersection of said bottom side and said side surface;a first symmetry axis;a reference plane extending perpendicular to the first symmetry axis and virtually dividing the double-sided milling cutting insert into two halves;each of said first and second cutting edges having three cutting edge portions being subsequently useable by indexing, said cutting edge portions having a cutting corner, a main cutting edge adjacent to one side of said cutting corner, and a wiper edge adjacent to the other side of said cutting corner, said wiper edge being connected to said main cutting edge of an adjacent cutting edge portion by a transition edge portion;said main cutting edge inclines towards the reference plane with an increasing distance from said cutting corner, and said wiper edge is inclined towards the reference plane with increasing distance from said cutting corner such ...

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Номер записи: 69
15-01-2015 дата публикации

COMBINATION-TYPE MACHINING TOOL

Номер: US20150016904A1
Автор: LIN Ping-Da
Принадлежит:

A combination-type machining tool has a handle segment and a head segment. The handle segment is made of stainless steel or carbon steel and has a clamping handle and a body. The body is axially formed on and protrudes from a front end of the clamping handle and has a protruding rod axially formed on and protruding from a front side of the body. The head segment is made of tungsten steel, is mounted around the protruding rod and has a through hole axially formed through a front side and a rear side of the head segment, and an inner peripheral surface of the through hole is securely mounted around the protruding rod to enable the rear side of the head-segment to abut against the front side of the body. 1. A combination-type machining tool having: a clamping handle having a front end and a diameter; and', a diameter being smaller than the diameter of the clamping handle;', 'an external surface;', 'a front side; and', 'a protruding rod axially formed on and protruding from the front side of the body; and, 'a body axially formed on and protruding from the front end of the clamping handle and having'}], 'a handle segment made of stainless steel or carbon steel and having'} a rear side securely mounted in and abutting against the front side of the body;', 'a front side;', 'an external surface; and', 'a through hole axially formed through the front side and the rear side of the head segment and having an inner peripheral surface securely mounted around the protruding rod to enable the rear side of the head segment to abut against the front side of the body., 'a head segment made of tungsten steel, mounted around the protruding rod of the handle segment and having'}2. The combination-type machining tool as claimed in claim 1 , whereinthe body of the handle segment has a length; andthe head segment has a length being shorter than half of a sum of the length of the head segment and the length the body of the handle segment.3. The combination-type machining tool as claimed in ...

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Номер записи: 70
18-01-2018 дата публикации

MILLING INSERT AND A MILLING TOOL

Номер: US20180015554A1
Автор: ROMAN Stefan
Принадлежит:

A milling insert for shoulder milling having s a positive basic shape and includes an upper side having a rake surface, a lower side including a planar bottom surface, a side surface extending around the periphery of the milling insert, and a cutting edge formed between the side surface and the rake surface. The cutting edge has at least a major cutting edge portion, a corner radius cutting edge portion, a ramping cutting edge portion, and a surface wiping cutting edge portion. The side surface includes an upper set of primary clearance surfaces and a lower set of secondary clearance surfaces having a plurality of planar secondary clearance surfaces, wherein the upper set of primary clearance surfaces forms an overhang protruding with respect to the secondary clearance surfaces and extending around the entire upper periphery of the milling insert. 1. A milling insert for mounting in a shoulder milling tool , the milling insert having a positive basic shape and comprising:an upper side having a rake surface;a lower side opposite to the upper side including a planar bottom surface;a side surface extending between the upper side and the lower side around a periphery of the milling insert; anda cutting edge formed between the side surface and the rake surface, the cutting edge including at least a major cutting edge portion, a corner radius cutting edge portion, a ramping cutting edge portion, and a surface wiping cutting edge portion positioned between the corner radius cutting edge portion and the ramping cutting edge portion and forming an angle with the ramping cutting edge portion the side surface including an upper set of primary clearance surfaces, and a lower set of secondary clearance surfaces including a plurality of planar support surfaces, wherein the upper set of primary clearance surfaces forms an overhang protruding with respect to the secondary clearance surfaces and extending around the entire upper periphery of the milling insert.2. The milling insert ...

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Номер записи: 71
17-01-2019 дата публикации

CUTTING INSERT, TOOL HOLDER AND TOOL

Номер: US20190015909A1
Автор: KEMMLER Tobias, LUIK MATTHIAS
Принадлежит:

A cutting insert, an associated tool holder, and a tool comprising such a cutting insert and such a tool holder. The cutting insert has a base body, which defines a cutting insert longitudinal axis, at least one cutting body, which laterally projects from a periphery of the base body and comprises a cutting edge, and a cutting insert bore, which is provided in the base body and extends along the cutting insert longitudinal axis, wherein on an underside, running transversely to the cutting insert longitudinal axis, of the base body are provided a plurality of elevations, which are arranged distributed in the peripheral direction and protrude from the underside of the base body, so that, between respectively two adjacent elevations, a relative depression is respectively obtained, wherein the cutting insert comprises at least one radial contact surface, a plurality of axial contact surfaces and a plurality of torque transfer surfaces for a bearing contact of the cutting insert against the tool holder. 1. A cutting insert for a tool for machining a workpiece , comprising:a base body, which defines a cutting insert longitudinal axis;at least one cutting body, which laterally projects from a periphery of the base body and comprises a cutting edge;a cutting insert bore, which is provided in the base body and extends along the cutting insert longitudinal axis, wherein on an underside, running transversely to the cutting insert longitudinal axis, of the base body are provided a plurality of elevations, which are arranged distributed in a peripheral direction and protrude from the underside of the base body, so that between respectively two adjacent elevations a relative depression is respectively obtained;at least one radial contact surface, a plurality of axial contact surfaces and a plurality of torque transfer surfaces for a bearing contact of the cutting insert against a tool holder, wherein the at least one radial contact surface lies on a cylindrical envelope or ...

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Номер записи: 72
17-01-2019 дата публикации

Cutting insert, cutting tool, and method of manufacturing machined product

Номер: US20190015910A1
Автор: Shohei MAO
Принадлежит: Kyocera Corp

A cutting insert of an embodiment includes an upper surface including a first upper cutting edge and a second upper cutting edge, a lower surface including a first lower cutting edge and a second lower cutting edge, and a side surface. The side surface includes a first surface extending from the second upper cutting edge, a second surface extending from the first lower cutting edge, a third surface extending from the first upper cutting edge, and a fourth surface extending from the second lower cutting edge. The first surface and the fourth surface are parallel to a central axis. The second surface is inclined so as to depart from the central axis as going from the lower surface toward the upper surface. The third surface is inclined so as to depart from the central axis as going from the upper surface toward the lower surface.

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Номер записи: 73
28-01-2016 дата публикации

Ceramic end mills with coolant holes

Номер: US20160023284A1
Автор: Danny Ray Davis, Jason Goldsmith
Принадлежит: Kennametal Inc

In one aspect, end mills are described herein, at least a portion of which comprise or formed of ceramic material. An end mill described herein comprises a shank portion extending along a longitudinal axis of the end mill, a cutting portion extending from the shank portion, the cutting portion formed of a ceramic material and comprising a plurality of blades disposed at a helical angle from the longitudinal axis along an axial length of cut and extending onto a cutting end surface of the end mill, and at least one fluid transport hole extending along the longitudinal axis and terminating in the cutting end surface.

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Номер записи: 74
28-01-2016 дата публикации

CUTTING INSERT AND INDEXABLE CUTTING TOOL

Номер: US20160023285A1
Автор: SAJI Ryuichi
Принадлежит:

A cutting insert includes: two opposite end surfaces; a peripheral side surface extending between the end surfaces; and plural cutting edge sections that are formed along an intersecting ridgeline portion between the peripheral side surface and each of the end surfaces. Each of the cutting edge sections includes a corner cutting edge, a major cutting edge, and a minor cutting edge. A non-cutting intersecting ridgeline area extending between adjacent cutting edge sections on one end surface is located adjacent, via the peripheral side surface, to at least a part of the corner cutting edge and the major cutting edge of an associating cutting edge section on the other end surface. 110.-. (canceled)11. A cutting insert comprising:two opposite end surfaces including a first end surface and a second end surface, each of them having an outline with a substantially polygonal shape;a peripheral side surface that extends between the first end surface and the second end surface; and a corner cutting edge disposed at a corner portion;', 'a major cutting edge connected with one end of the corner cutting edge; and', 'a minor cutting edge connected with the other end of the corner cutting edge, wherein, 'a plurality of cutting edge sections that are formed along an intersecting ridgeline portion between the peripheral side surface and each of the first end surface and the second end surface, each of the cutting edge sections comprisingat least two cutting edge sections and a seating surface are formed on each of the first end surface and the second end surface,each of the cutting edge sections has a rake face on an adjacent end surface,at least a part of each of the cutting edge sections at least protrudes in an insert thickness direction, anda non-cutting intersecting ridgeline area extending between adjacent cutting edge sections on either one of the first end surface and the second end surface is located adjacent, via the peripheral side surface, to at least a part of a portion ...

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Номер записи: 75
23-01-2020 дата публикации

CUTTING INSERT AND INDEXABLE CUTTING TOOL

Номер: US20200023444A1
Автор: Saitoh Hiroto, Touma Syoujirou
Принадлежит:

A cutting insert includes a polygonal plate-shaped insert main body having two polygonal surfaces, a side surface having a flank, and a cutting edge to be formed in an intersection ridgeline portion between a rake face and the flank. The insert main body has a rotationally symmetrical shape with respect to an insert center line, and has a front-rear reversely symmetrical shape with respect to the polygonal surface. The cutting edge includes a corner cutting edge, a major cutting edge extending from an one end of the corner cutting edge, and a wiper cutting edge extending from an one end of the major cutting edge in a direction intersecting the major cutting edge at an obtuse angle. A first region is disposed where a clearance angle of the flank gradually decreases to a negative angle after continuously passing through 0° from a positive angle. 1. A cutting insert , comprising: two polygonal surfaces formed in a polygonal shape, one of the two polygonal surfaces serving as a seating surface when the other of the two polygonal surfaces serves as a rake face,', 'a side surface located around the two polygonal surfaces and having a flank which intersects the rake face of the polygonal surface, and', 'a cutting edge formed in an intersection ridgeline portion between the rake face and the flank,, 'a polygonal plate-shaped insert main body having'}wherein the insert main body has a rotationally symmetrical shape with respect to an insert center line passing through a center of the two polygonal surfaces, and has a front-rear reversely symmetrical shape with respect to the two polygonal surfaces, a corner cutting edge located in a corner portion of the polygonal surface,', 'a major cutting edge extending from an one end of the corner cutting edge, and', 'a wiper cutting edge extending from an one end of the major cutting edge in a direction intersecting the major cutting edge at an obtuse angle,, 'wherein the cutting edge includes at least'}wherein a first region is ...

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Номер записи: 76
23-01-2020 дата публикации

Tool, Machine and Method for Producing Roof Ridge-Shaped Chamfers on Teeth of an Internally and Externally Toothed Gearwheel

Номер: US20200023445A1
Автор: Holderbein Walter, Schieke Jörg
Принадлежит:

The invention provides a tool, a method and a machine with which roof ridge-shaped chamfers can be produced on teeth of an internally and externally toothed gearwheel with minimised changeover times during tool set up. For this purpose, a tool according to the invention comprises a tool carrier having a holding section for attachment in a tool holder and a chamfering tool, which is held on the end section of the tool carrier, said end section being associated with the other end face, and during use describes an impact circle with its cutting edge, the diameter of said circle being determined by the radial distance of the cutting edge of the chamfering tool from the axis of rotation of the tool. According to the invention, at least one further chamfering tool is attached in a middle section of the tool carrier which is offset relative to the end section provided with the chamfering tool towards the holding section of the tool carrier. At the same time, the further chamfering tool is held with its cutting edge at a radial distance from the axis of rotation of the tool, which is greater than the radial distance of the cutting edge of the chamfering tool held on the end section of the tool holder. A method according to the invention and a machine according to the invention are based on the use of tools according to the invention. 1. A tool for producing roof ridge-shaped chamfers on teeth of an internally and externally toothed gearwheel , wherein the tool comprisesa finger-like tool carrier having a holding section which is associated with an end face of the tool carrier and provided for fastening in a tool holder of a machine tool,anda chamfering tool, which is held on the end section of the tool carrier associated with the other end face, and during use describes an impact circle with its cutting edge, whose diameter is determined by the radial distance of the cutting edge of the chamfering tool from the axis of rotation of the tool,wherein at least one further ...

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Номер записи: 77
23-01-2020 дата публикации

HIGH-FEED CUTTING INSERT AND CUTTING TOOL EQUIPPED WITH SAME

Номер: US20200023446A1
Автор: CHOI Young Nam, LEE Sang Yong, Park Jae Man
Принадлежит: KORLOY INC.

The present disclosure's technical object is to provide a high feed cutting insert capable of providing a sufficient entering angle while ensuring rigidity of a cutting tool's bottom part. For this, the high feed cutting insert of the present disclosure comprises a short cutting edge provided on a boundary portion between a main surface and a short side surface, a long cutting edge provided on a boundary portion between the main surface and a long side surface, two ascending corner cutting edges connecting the short cutting edge and the long cutting edge, and placed on one diagonal position, and two descending corner cutting edges placed on the other diagonal position and having the height lower than that of the ascending corner cutting edges, wherein the short cutting edge and the long cutting edge, when viewed towards the main surface, form an obtuse angle while the ascending corner cutting edges are interposed therebetween and form an acute angle while the descending corner cutting edges are interposed therebetween. 1. A high feed cutting insert comprising:a main surface and a sub-surface facing each other in opposite directions; two short side surfaces connecting the main surface and the sub-surface and facing each other in opposite directions; two long side surfaces connecting the main surface and the sub-surface, connecting the two short side surfaces, facing each other in opposite directions, and having a greater width than that of the short side surfaces; and a fastening hole extending through the two long side surfaces, through which a cutting tool fastening bolt is inserted, wherein the high feed cutting insert comprises:short cutting edges provided on boundary portions between the main surface and the short side surfaces;long cutting edges provided on boundary portions between the main surface and the long side surfaces;two ascending corner cutting edges connecting the short cutting edges and the long cutting edges, and placed on one diagonal position; ...

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Номер записи: 78
28-01-2021 дата публикации

CUTTING INSERT FOR A SHOULDER MILLING TOOL

Номер: US20210023634A1
Автор: Eriksson Thomas, JANSSON UDD Jorgen, ROMAN Stefan
Принадлежит:

A trigonal cutting insert for a shoulder milling tool includes an upper side, an opposite lower side and a peripheral side surface. A plurality of indexable cutting edges extend along corners of the cutting insert, each cutting edge having a main cutting edge, a corner cutting edge, and a surface-wiping secondary cutting edge. The upper side includes a recessed central surface, and a plurality of positively inclined rake surfaces having a main rake surface portion, a corner rake surface portion, and a secondary rake surface portion. A concave indentation is formed in the corner rake surface portion and in at least an initial part of the main rake surface portion adjacent to the corner rake surface portion, wherein the concave indentation has an elongated shape. 2. The cutting insert according to claim 1 , wherein a bisector of the corner cutting edge divides the concave indentation into a major portion and a minor portion claim 1 , wherein the major portion is larger than the minor portion and extends in the corner rake surface portion and into the initial part of the main rake surface portion claim 1 , and wherein the minor portion extends only in the corner rake surface portion.3. The cutting insert according to claim 1 , wherein the upper side includes primary lands extending between the indexable cutting edges and the inclined rake surfaces.4. The cutting insert according to claim 3 , wherein at least one of the primary lands has a width that varies along the cutting edge.5. The cutting insert according to claim 4 , wherein the width of the primary land is smaller inside the corner cutting edge than inside at least a part of the main cutting edge.6. The cutting insert according to claim 4 , wherein the width of the primary land inside the main cutting edge increases in a direction away from the corner cutting edge.7. The cutting edge according to claim 4 , wherein an angle of inclination of the primary land with respect to the upper extension plane claim 4 , as ...

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Номер записи: 79
24-04-2014 дата публикации

PROFILE CUTTER

Номер: US20140112730A1
Автор: COPELAND Brian K., HENDERSON Nathaniel H., Trzaskos Piotr S.
Принадлежит:

The described embodiments relate generally to device housings and more particularly to methods for blending multiple surfaces of a device housing during a machining process. A method is disclosed that prevents the formation of steps and allows for a smooth transition between flat and curved surfaces by using a profile cutter with an obtuse angle. The profile cutter can extend into the area in which the flat surface is desired while angling upwards and away from the part. This angle can ensure that the boundary between the flat surfaces and curved surfaces forms a shallow peak rather than a step. A shallow peak can be relatively easier to blend during a polishing operation than a step. As a result, the boundaries between surfaces can be hidden from the user of the device and the manufacturing process can be more efficient. 1. A method for forming a device housing with curved side surfaces that blend into a flat back surface , the method comprising:receiving a device housing material; andmachining the curved side surfaces along a periphery of the device housing material using an obtuse profile cutter, wherein the obtuse profile cutter includes a curved section configured to create the curved side surfaces and a straight angled portion configured to provide a transition from the curved side surfaces to the flat back surface.2. The method of claim 1 , further comprising machining the flat back surface.3. The method of claim 2 , further comprising performing a polishing process on the intersection between the curved side surface and the flat back surface claim 2 , wherein the polishing process removes any peaks and provides a seamless transition between the curved side surfaces and the flat back surface.4. The method of claim 1 , wherein the obtuse profile cutter is formed of a material comprising at least one of carbide claim 1 , cobalt alloy claim 1 , steel claim 1 , and ceramic.5. The method of claim 1 , wherein the device housing is formed of a material comprising at ...

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Номер записи: 80
29-01-2015 дата публикации

COUPLING MECHANISM FOR CUTTING TOOL

Номер: US20150030398A1
Автор: BOOKHEIMER ALAN, Boulakhov Sergei, FROTA DE SOUZA RUY, GEORGE STEPHEN MICHAEL, GEY CHRISTOPH, HARUSH YOSI, LEVY UZI, Sharivker Leonid B.
Принадлежит: KENNAMETAL INC.

A rotary cutting tool includes a cutter of generally cylindrical shape disposed about a central longitudinal axis. The cutter has a first end having an active fluted portion and an opposite second end, the second end having a male threaded portion disposed thereabout. The cutting tool further includes a shank of generally cylindrical shape disposed about the central longitudinal axis, the shank having a recessed female threaded portion formed in a first end. The male threaded portion includes a number of threads disposed at a first pitch and the female threaded portion includes a number of threads disposed at a second pitch different than the first pitch. The cutter and the shank are selectively coupled via threaded engagement of the male threaded portion and the female threaded portion. 1. A rotary cutting tool comprising:a cutter of generally cylindrical shape disposed about a central longitudinal axis, the cutter having a first end having an active fluted portion and an opposite second end, the second end having a male threaded portion disposed thereabout; anda shank of generally cylindrical shape disposed about the central longitudinal axis, the shank having a recessed female threaded portion formed in a first end,wherein the male threaded portion includes a number of threads disposed at a first pitch and the female threaded portion includes a number of threads disposed at a second pitch different than the first pitch, andwherein the cutter and the shank are selectively coupled via threaded engagement of the male threaded portion and the female threaded portion.2. The rotary cutting tool of wherein the first pitch is less than the second pitch.3. The rotary cutting tool of wherein the first pitch is about 0.005 mm less than the second pitch.4. The rotary cutting tool of wherein the difference between the first pitch and the second pitch is in the range of about 0.002 to about 0.010 mm.5. The rotary cutting tool of wherein the cutter is formed from a carbide ...

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Номер записи: 81
29-01-2015 дата публикации

COUPLING MECHANISM FOR CUTTING TOOL

Номер: US20150030399A1
Автор: BOOKHEIMER ALAN, Boulakhov Sergei, FROTA DE SOUZA RUY, George Stephen M., GEY CHRISTOPH, HARUSH YOSI, LEVY UZI, Sharivker Leonid B.
Принадлежит: KENNAMETAL INC.

A rotary cutting tool including a cutter member having an axial forward end and an axial rearward end. A cutting region is at the axial forward end of the cutter member, and a male threaded portion is adjacent the axial rearward end of the cutter member. A shank member has an axial forward end and a shank bore opening at the axial forward end. The shank bore has an axial shank bore length. The shank bore contains a female threaded portion and an axial rearward shank bore portion axially rearward of the female threaded portion. The axial rearward shank bore portion has a terminal end. When the male threaded portion of the cutter member fully engages the female threaded portion of the shank member, the axial rearward end of the cutter member being spaced a first distance axially forward of the terminal end of the axial rearward shank bore portion. 1. A rotary cutting tool comprising:a cutter member having an axial forward end and an axial rearward end, a cutting region at the axial forward end of the cutter member, and a male threaded portion adjacent the axial rearward end of the cutter member;a shank member having an axial forward end and a shank bore opening at the axial forward end, the shank bore having an axial shank bore length, the shank bore containing a female threaded portion and an axial rearward shank bore portion axially rearward of the female threaded portion, and the axial rearward shank bore portion having a terminal end; andwhen the male threaded portion of the cutter member fully engages the female threaded portion of the shank member, the axial rearward end of the cutter member being spaced a first distance axially forward of the terminal end of the axial rearward shank bore portion.2. The rotary cutting tool according to wherein the cutting region has a maximum diameter claim 1 , and the cutter member has a central longitudinal axis.3. The rotary cutting tool according to wherein the cutter member comprises an axial forward radial aligner portion ...

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Номер записи: 82
02-02-2017 дата публикации

ROTATABLE CUTTING TOOL AND KEY THEREFOR

Номер: US20170028479A1
Автор: HAIMER Franz
Принадлежит: Franz Haimer Maschinenbau KG

A rotatable cutting tool, which extends along a tool axis defining an axial direction, includes a cutting formation in a first axial longitudinal end region, which is configured for material ablation on a workpiece, and includes a screw-connection formation in a second axial longitudinal end region opposing the first, which is configured for screw connection with a coupling unit. The cutting tool includes key-contact surface formations diametrically opposing each other with respect to the tool axis, which are configured for torque-transmitting abutting engagement with key surfaces of a key. Each of the key-contact-surface formations includes at least two key-contact surface regions provided with spacing from each other in the circumferential direction about the tool axis, which key-contact surface regions are inclined away from each other such that they form a vertex projecting away from the tool axis. 1. Rotatable cutting tool , which extends along a tool axis defining an axial direction , the cutting tool comprising:a cutting formation in a first axial longitudinal end region, which is configured for material ablation on a workpiece, wherein the cutting tool includes a screw-connection formation in a second axial longitudinal end region opposing the first, which is configured for screw connection with a coupling unit; andkey-contact surface formations diametrically opposing each other with respect to the tool axis, which are configured for torque-transmitting abutting engagement with key surfaces of a torque key,wherein each of the key-contact-surface formations includes at least two key-contact surface regions provided with spacing from each other in the circumferential direction about the tool axis, which key-contact surface regions, are inclined away from each other such that they form a vertex projecting away from the tool axis.2. The rotatable cutting tool according to claim 1 , wherein an inclination axis by which two key-contact surface regions of a key- ...

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Номер записи: 83
02-02-2017 дата публикации

ROTARY CUTTING TOOL WITH BLADES HAVING REPEATING, UNEQUAL INDEXING AND HELIX ANGLES

Номер: US20170028482A1
Автор: Boulakhov Sergei Vladimir, DAVIS Danny Ray, Palmer Frederick John, Sharivker Leonid Boris
Принадлежит:

A rotary cutting tool with a longitudinal axis includes a shank portion and a cutting portion defining a length of cut. The cutting portion includes a plurality of blades separated by flutes extending along the length of cut. A first blade forms a first helix angle with respect to the longitudinal axis at the cutting tip. A second blade adjacent the first blade forms a second, different helix angle with respect to the longitudinal axis at the cutting tip. A third blade adjacent the second blade forms a third, different helix angle with respect to the longitudinal axis at the cutting tip. The first, second and third helix angles deviate by at least 2 degrees. The cutting edges of the first, second and third blades have unequal indexing. 1. A rotary cutting tool with a longitudinal axis , comprising:a shank portion; anda cutting portion extending from the shank portion to a cutting tip, the cutting portion having a length of cut, and a plurality of blades separated by flutes extending along the length of cut, each of the blades including a cutting edge at an intersection between a leading face and the land surface,{'b': 1', '2', '3, 'wherein a cutting edge of a first blade is formed at a first distance, X, with respect to a cutting edge of a second blade adjacent the first blade, and wherein the cutting edge of the second blade is formed at a second distance, X, with respect to a cutting edge of a third blade adjacent the second blade, and wherein the cutting edge of the third blade is formed at a third distance, X, with respect to a cutting edge of a fourth blade adjacent the third blade, and'}wherein the first blade of the plurality of blades forms a first helix angle with respect to the longitudinal axis at the cutting tip, and wherein the second blade forms a second, different helix angle with respect to the longitudinal axis at the cutting tip, and wherein the third blade of the plurality of blades adjacent the second blade forms a third, different helix angle ...

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Номер записи: 84
04-02-2016 дата публикации

REPLACEABLE MACHINING HEAD

Номер: US20160031018A1
Автор: Abe Taro, Azegami Takayuki, MATSUOKA Yuki, Ota Yasushi
Принадлежит: MITSUBISHI MATERIALS CORPORATION

Provided is a replaceable machining head wherein: fractures on the tool attaching portion do not occur; the production cost is minimized; the tool life of the working tool will be lengthened; and the head body is free from a risk of falling off during replacement. In the replaceable machining head, a cutting edge section is formed on the front side of a head body; a tool attaching portion to which a working tool is to be attached, is formed on the rear end side of the cutting edge section; tool attaching faces are formed in the tool attaching potion; the surface of the head body 1 is coated with a coating film; and the number of droplets or macro particles having convex shapes with a size of 0.3 μm to 5.0 μm, is 200 or less, per area of 40 μm×60 μm on the surface of the coating film over the tool attaching faces. 1a cutting edge section which is formed on the front side of a head body;a tool attaching portion to which a working tool is to be attached, and which is formed on the rear end side of the cutting edge section; andtool attaching faces which are formed in the tool attaching potion,wherein the surface of the head body is coated with a coating film, andthe number of droplets or macro particles having convex shapes with a size of 0.3 μm to 5.0 μm, is 200 or less, per area of 40 μm×60 μm on The surface of the coating film over the tool attaching faces.. A replaceable machining head comprising: The present invention relates to a replaceable machining head which is attachable to and detachable from the front end of a tool body, and is used for machining.As a machining tool with such a replaceable machining head mounted on the tool body, for example, Patent Document 1 discloses a machining head replaceable rotating tool. In this tool, a male screw for fastening and a female screw for fastening are provided coaxially on one and the other of a machining head (replaceable machining head) and a holder (tool body) to screw them together; and then the machining head is ...

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Номер записи: 85
04-02-2016 дата публикации

ROTARY CUTTING TOOL WITH REGRINDABLE CUTTING INSERTS

Номер: US20160031020A1
Автор: Broadway Dennis James, Francis Mark Alan
Принадлежит: KENNAMETAL INC.

A rotary cutting tool includes a cutter body having a plurality of insert-receiving pockets. Each pocket includes a bottom support surface, an axial support surface, a radial support surface, a top clearance surface and an intermediate clearance surface extending between the axial support surface and the top clearance surface. A cutting insert includes a helical top surface, a helical side surface, a side surface opposite the helical side surface, a pair of opposed side walls, a bottom surface, and a cutting edge formed at an intersection between the helical top surface and the helical side surface. The cutting insert further includes an undercut for accommodating the axial support surface, the top clearance surface and the intermediate clearance surface of the pocket when the cutting insert is mounted in the pocket. 1. A rotary cutting tool , comprising:{'b': '44', 'a cutter body having a plurality of insert-receiving pockets, each pocket including a bottom support surface, an axial support surface and a radial support surface, each pocket further including a top clearance surface and an intermediate clearance surface extending between the axial support surface () and the top clearance surface; and'}a plurality of cutting inserts mounted in the insert-receiving pockets of the cutter body, each cutting insert including a helical top surface, a helical side surface, a side surface opposite the helical side surface, a pair of opposed side walls, a bottom surface, and a cutting edge formed at an intersection between the helical top surface and the helical side surface, the cutting insert further including an undercut for accommodating the axial support surface, the top clearance surface and the intermediate clearance surface of the pocket when the cutting insert is mounted in the pocket.2. The cutting tool of claim 1 , wherein the undercut includes a first surface claim 1 , a second surface substantially perpendicular to the first surface claim 1 , and a radius ...

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Номер записи: 86
01-02-2018 дата публикации

ROTATING TOOL

Номер: US20180029145A1
Автор: Arumskog Paer Christoffer, Utsumi Yoshiharu
Принадлежит:

It is an object to provide a rotating tool having an excellent wear resistance. The rotating tool includes: a base member including a cutting edge portion and a flute portion; and a coating film that coats a surface of the base member, a ratio B/A of a film thickness B of the coating film coating a surface of the flute portion to a film thickness A of the coating film coating a surface of the cutting edge portion being not less than 0.8. 1. A rotating tool comprising:a base member including a cutting edge portion and a flute portion; anda coating film that coats a surface of the base member,a ratio B/A of a film thickness B of the coating film coating a surface of the flute portion to a film thickness A of the coating film coating a surface of the cutting edge portion being not less than 0.8.2. The rotating tool according to claim 1 , wherein the rotating tool is an end mill.3. The rotating tool according to claim 1 , wherein the rotating tool is a drill.4. The rotating tool according to claim 1 , wherein the ratio B/A is not less than 1.5. The rotating tool according to claim 1 , wherein the film thickness A is not less than 0.1 μm and not more than 10 μm.6. The rotating tool according to claim 5 , wherein the film thickness A is not less than 2.0 μm and not more than 6.0 μm.7. The rotating tool according to claim 1 , wherein a material of the coating film is not less than one compound composed of: at least one element selected from a group consisting of a group 4 element claim 1 , a group 5 element claim 1 , a group 6 element in a periodic table claim 1 , aluminum claim 1 , and silicon; and at least one element selected from a group consisting of boron claim 1 , carbon claim 1 , nitrogen claim 1 , and oxygen. The present invention relates to a rotating tool including a base member and a coating film formed on the base member.As a tool, there has been known a tool in which a hard coating film such as TiAlN is provided on a surface of a hard base member such as WC ...

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Номер записи: 87
02-02-2017 дата публикации

THREADED FASTENER

Номер: US20170030393A1
Автор: KOTHANDARAMAN Senthil Kumaran, Phua Cheng Siong
Принадлежит: INFASTECH INTELLECTUAL PROPERTIES PTE. LTD.

Disclosed are new thread profiles that provide multi-point contact improving the vibration resistance of the threaded fastener, and thereby greatly reducing the need for fastener coatings, such as nylon patches. In various embodiments, the threaded faster may have a threaded portion configured to engage two or three points of a mating thread, and the threaded portion has a thread defined by a crest portion, a leading flank, at least one root portion, and a trailing flank, all of which may be oriented at angle relative to the normal axis. 1. A threaded fastener comprising:a first end, a second end, and a threaded portion extending between the first end and the second end,wherein the fastener has a longitudinal axis extending through the fastener from the first end to the second end, and a normal axis extending perpendicular to the longitudinal axis, and a crest portion oriented at an angle of −5° to +20° relative to the longitudinal axis,', 'a leading flank oriented at an angle of 20° to 40° relative to the normal axis,', 'a root portion oriented at an angle of 22° to 35° relative to the longitudinal axis, and', 'a trailing flank oriented at angle of 15° to 27° relative to the normal axis., 'wherein the threaded portion has a thread defined by, in series,'}2. A threaded fastener comprising:a first end, a second end, and a threaded portion extending between the first end and the second end,wherein the fastener has a longitudinal axis extending through the fastener from the first end to the second end, and a normal axis extending perpendicular to the longitudinal axis, and a crest portion oriented at an angle of −5° to 5° relative to the longitudinal axis,', 'a leading flank oriented at an angle of 30° to 40° relative to the normal axis,', 'a root portion oriented at an angle of 22° to 32° relative to the longitudinal axis, and', 'a trailing flank oriented at angle of 17° to 27° relative to the normal axis., 'wherein the threaded portion has a thread defined by, in ...

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Номер записи: 88
17-02-2022 дата публикации

SYSTEM FOR MANUFACTURING OF HONEYCOMB EXTRUSION DIES AND MANUFACTURING METHODS THEREOF

Номер: US20220048234A1
Автор: Antesberger Timothy Eugene, Coots Dana Eugene, Sidebottom Neil James
Принадлежит:

A method of manufacturing an extrusion die (). The method comprises providing the extrusion die (), the extrusion die () having a plurality of die pins () defining a plurality of slots (), the plurality of die pins () having an initial die pin width and an initial die pin depth and the plurality of slots having an initial slot width (Ws) and an initial slot depth (Ds), providing a micro-milling machine () with a spindle (), providing a micro-cutting tool () coupled to the spindle (), mounting the extrusion die () proximate the micro-cutting tool (), and removing material from one or more die pins () using the micro-cutting tool (), the micro-cutting tool () making one or more cutting passes against the one or more die pins () to remove the material. Micro-milling apparatuses and further methods are provided, as are other aspects. 1. A micro-milling system comprising:{'claim-text': ['a spindle, and', 'a micro-cutting tool coupled to the spindle; and'], '#text': 'a micro-milling machine comprising:'}an extrusion die comprising a plurality of die pins defining a plurality of slots, the extrusion die secured by the micro-milling machine proximate the micro-cutting tool.2. The micro-milling system of further comprising an integrated vision system claim 1 , the integrated vision system configured to capture location data of the plurality of die pins.3. The micro-milling system of further comprising a controller claim 2 , the controller generating a numerical control file that comprises locations of the plurality of die pins using at least the location data captured by the integrated vision system.4. The micro-milling system of wherein the locations of the plurality of die pins are each determined with an accuracy of 1 micron or more accurate.5. The micro-milling system of wherein the micro-milling machine further comprises a tool arm connected to the micro-cutting tool and configured to move the micro-cutting tool with respect to the extrusion die.6. The micro-milling ...

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Номер записи: 89
31-01-2019 дата публикации

CUTTING INSERT AND CUTTING TOOL

Номер: US20190030626A1
Автор: Morisaki Yuta
Принадлежит: Sumitomo Electric Hardmetal Corp.

A cutting insert includes a main body including a first face, a second face, and a third face. The second face includes a rake face. Among the outer-peripheral sides of the second face, the boundary portion with the first face is a main cutting edge. When viewed from the side where the first face is disposed, the main cutting edge includes a first straight portion, a second straight portion, and a curved portion. The first straight portion is located adjacent to a reference side. The second straight portion is arranged at a distance from the first straight portion. The curved portion connects the first straight portion and the second straight portion. A first intersection angle of the first straight portion with respect to the reference side is different from a second intersection angle of the second straight portion with respect to the reference side. 1. A cutting insert comprising a main body , the main body including:a first face;a second face continuous with the first face and extending in a direction intersecting the first face; anda third face continuous with the first face and the second face,the first face having a fixing hole formed therein,the second face including a rake face,among outer-peripheral sides of the second face, a boundary portion with the first face being a main cutting edge, a first straight portion located adjacent to a reference side, the reference side being a boundary between the first face and the third face;', 'a second straight portion arranged at a distance from the first straight portion; and', 'a curved portion connecting the first straight portion and the second straight portion,, 'when viewed from a side where the first face is disposed, the main cutting edge includinga first intersection angle of the first straight portion with respect to the reference side being different from a second intersection angle of the second straight portion with respect to the reference side.2. The cutting insert according to claim 1 , wherein claim ...

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Номер записи: 90
31-01-2019 дата публикации

CUTTING INSERT

Номер: US20190030627A1
Автор: BURTSCHER Peter, PRAST JOSEF
Принадлежит:

A cutting insert has a substantially triangular or square basic shape with a top surface and a base surface that are connected together by lateral flanks. A cutting edge is formed at the transition between at least one flank and the top surface. The cutting edge extends between cutting corners, and the cutting edge has a portion that is convex in side view of a flank. The convex portion of the cutting edge is bounded on both sides by concavely curved portions. 110-. (canceled)11. A cutting insert , comprising:a substantially triangular or square basic shape with a top surface, a base surface, and lateral flanks connecting said top and base surfaces to one another;a cutting edge formed at a transition of at least one said lateral flank to said top surface, said cutting edge extending between cutting corners; andsaid cutting edge having a convex portion being convex in a side view of a flank, and concavely curved portions bounding said convex portion on both sides thereof.12. The cutting insert according to claim 11 , wherein said concavely curved portions extend as far as respectively adjacent said cutting corners.13. The cutting insert according to claim 11 , wherein a transition from said convex portion into a first said concave portion and a transition from said convex portion into a second said concave portion are formed in each case tangentially.14. The cutting insert according to claim 11 , wherein a respective said cutting edge is formed at each transition from said lateral flanks to said top surface.15. The cutting insert according to claim 11 , wherein said convexly curved portion is located eccentrically between said cutting corners claim 11 , with a vertex of said convexly curved portion being shifted in a direction of said cutting corner that is located radially inside with regard to a trajectory of the cutting insert when the cutting insert is used.16. The cutting insert according to claim 11 , wherein a radius of curvature of a concavely curved portion ...

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Номер записи: 91
30-01-2020 дата публикации

ENDMILL BODY AND RADIUS END MILL

Номер: US20200030895A1
Автор: HATANO Yuki, KITAGAWA Shusuke
Принадлежит:

In an end mill body made of ceramic, a corner R rake face is formed in such a manner as to contain a point B and at least a region B, not a region A located on a side toward an end cutting edge. In other words, a first end portion of a cutting edge on a peripheral edge portion of the corner R rake face is formed on a peripheral edge of the region B of a corner R cutting edge, and a second end portion of the cutting edge reaches at least the point B. As a result, partial breakage of the corner R cutting edge is unlikely to occur in the course of cutting. That is, since the corner R rake face is formed in such a manner as to start from the first end portion located apart from a point A, which is the intersection of the end cutting edge and the corner R cutting edge, and such that the second end portion reaches the point B, a large cutting load is unlikely to be imposed on the starting point of the corner R rake face. Therefore, the corner R cutting edge is unlikely to be chipped. 1. An end mill body made of ceramic and constituting a distal-end side of a radius end mill to be rotated about an axial line , havinga chip ejection groove formed in a periphery of a distal end portion of the end mill body in such a manner as to extend from a distal-end side toward a rear-end side while twisting in a direction opposite a direction of rotation,a peripheral cutting edge formed on a peripheral-side ridge of the chip ejection groove,a gash extending from a distal end portion of the end mill body to the chip ejection groove,an end cutting edge rake face formed on the gash,an end cutting edge formed on the distal end portion of the end mill body,a corner R cutting edge extending from the end cutting edge to the peripheral cutting edge in such an arcuate manner as to be outwardly convex, anda corner R rake face provided between the end cutting edge rake face and the chip ejection groove in such a manner as to adjoin the corner R cutting edge,with a point A representing an ...

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Номер записи: 92
04-02-2021 дата публикации

END MILL

Номер: US20210031282A1
Автор: Kobayashi Yutaka, Kukino Satoru
Принадлежит: Sumitomo Electric Hardmetal Corp.

An end mill has a shank and a cutting edge portion. The shank has a coolant supply path. The cutting edge portion covers an outlet of the coolant supply path and is provided on the shank. The cutting edge portion is made of a porous body. 1: An end mill comprising:a shank having a coolant supply path; anda cutting edge portion covering an outlet of the coolant supply path and provided on the shank,the cutting edge portion being made of a porous body,the cutting edge portion including a trailing end surface on a side of the shank, a leading end surface opposite to the trailing end surface, and a coolant flow path penetrating the trailing end surface and the leading end surface,an opening of the coolant flow path in the leading end surface constituting a cutting edge.2. (canceled)3: The end mill according to claim 1 , wherein the leading end surface has a chip discharge groove extending toward the shank.4: The end mill according to claim 3 , wherein the chip discharge groove is separated from the trailing end surface.5: The end mill according to claim 3 , wherein the chip discharge groove is continuous to the trailing end surface.6: The end mill according to claim 3 , wherein the shank has an outer circumferential groove extending along a direction in which the chip discharge groove extends.7: The end mill according to claim 3 , wherein claim 3 , when viewed from a direction parallel to a rotation axis claim 3 , the chip discharge groove has a linear shape.8: The end mill according to claim 3 , wherein claim 3 , when viewed from a direction parallel to a rotation axis claim 3 , the chip discharge groove has an arc shape.9: The end mill according to claim 1 , wherein the cutting edge portion is made of polycrystalline diamond.10: The end mill according to claim 9 , wherein the polycrystalline diamond has an average particle diameter of 0.5 μm or more and 100 μm or less.11: The end mill according to claim 1 , wherein the porous body has a porosity of 2% by volume or ...

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Номер записи: 93
05-02-2015 дата публикации

END MILL WITH COOLANT HOLES

Номер: US20150037105A1
Автор: Azegami Takayuki, Fukata Kouji, Matsumoto Genki
Принадлежит: MITSUBISHI MATERIALS CORPORATION

An end mill comprises: a main body with two coolant holes; three chip discharge grooves formed at an outer periphery of a tip portion of the main body; gashes formed at the tip portions of the three chip discharge grooves; and three end cutting edges formed at intersecting ridgeline portions between tip flanks and wall surfaces facing an end mill rotation direction of the gashes. One end cutting edge is long and extends across the axis line at a tip of the main body. Inner peripheral ends of two remaining end cutting edges are disposed at intervals from the axis line. Two coolant holes are drilled toward a tip side in a direction of the axis line. A first coolant hole opens at the tip flank of the long edge, and a second coolant hole opens at a gash of one of the two remaining end cutting edges. 1. An end mill comprising:a main body with two coolant holes that are drilled toward a tip side in a direction of an axis line in the main body;three chip discharge grooves that are formed at an outer periphery of a tip portion of the main body which rotates around the axis line;gashes that are respectively formed at tip portions of the chip discharge grooves; andthree end cutting edges that are formed at intersecting ridgeline portions between wall surfaces facing an end mill rotation direction of the gashes and tip flanks of the main body, whereinone end cutting edge among the three end cutting edges is a long edge extending across the axis line from an outer periphery side at a tip of the end mill main body, inner peripheral ends of the two remaining end cutting edges are disposed at intervals from the axis line at the tip of the end mill main body,a first one of the coolant holes opens at a tip flank of the long edge, anda second one of the coolant holes opens at the gash of one end cutting edge of the two remaining end cutting edges.2. The end mill according to claim 1 , wherein the second coolant hole opens at the gash of one end cutting edge adjacent to the long edge ...

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Номер записи: 94
05-02-2015 дата публикации

REPLACEABLE HEAD CUTTING TOOL

Номер: US20150037108A1
Автор: Abe Tarou, Azegami Takayuki
Принадлежит: MITSUBISHI MATERIALS CORPORATION

A replaceable head cutting tool increases the strength of engagement between a tool body and a coupling member without causing damage. A cylindrical mounting unit of the coupling member which is made of a metal having hardness lower than the hardness of the tool body, is inserted into a mounting hole having a concave portion formed on the inner surface of the tool body. The mounting unit is plastically deformed so as to increase in diameter, and the outer peripheral surface of the mounting unit contacts the inner peripheral surface of the mounting hole and is engaged with the concave portion which includes a first wall surface that is inclined toward the outer peripheral side as it moves in an insertion direction of the mounting unit, and a second wall surface that is inclined toward the inner peripheral side as it moves in the insertion direction. 1. A replaceable head cutting tool comprising:a tool body having a mounting hole; anda coupling member having a cylindrical mounting unit, whereinthe coupling member is made of a metal material having a hardness lower than the hardness of a hard material of the tool body,the mounting unit is received in the mounting hole, which is formed in the tool body made of the hard material and includes a concave portion formed on an inner peripheral surface thereof,the mounting unit can be plastically deformed so as to increase in diameter,an outer peripheral surface of the mounting unit is in close contact with the inner peripheral surface of the mounting hole and is engaged with the concave portion, so that the tool body and the coupling member are joined to each other,the concave portion includes a first wall surface that is inclined toward an outer peripheral side in an insertion direction of the mounting unit into the mounting hole, and a second wall surface that is opposite to the first wall surface and is inclined toward an inner peripheral side, anda first inclination angle, which is formed between the first wall surface ...

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Номер записи: 95
01-05-2014 дата публикации

Pcd milling cutter for lens processing

Номер: US20140119843A1
Автор: Dong-Bin Jang, In-Sun Cha, Soo-Il CHA
Принадлежит: Individual

Disclosed is a PCD milling cutter for lens processing. The PCD milling cutter includes a shaft having one axial end portion rotatably coupled with a driving unit of a milling unit for lens processing, a rotary head coupled with the axial end portion of the shaft and having a plurality of installation protrusions which protrude outward along a circumference thereof about a rotation center and have outer circumferential surfaces rounded in an axial direction of the shaft, and a plurality of PCD tips coupled with installation surfaces of the installation protrusions positioned in a rotation direction, provided at outer end portions thereof with rounded cutting blades sharply processed in the axial direction of the shaft, and provided in inner end portions thereof, which are opposite to the cutting blades, with cutting grooves formed in a concave shape to increase a welding force.

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Номер записи: 96
01-05-2014 дата публикации

VARIABLE LEAD END MILL

Номер: US20140119844A1
Автор: Itoh Tasuku, Osawa Jiro, Tomita Hiroshi, Ukei Shigetoshi
Принадлежит: OSG CORPORATION

A variable lead end mill has a plurality of peripheral cutting edges with different helix angles, the variable lead end mill having a flute bottom diameter of a plurality of helix flutes making up rake faces of the plurality of the peripheral cutting edges, the flute bottom diameter increasing in an axial direction from a tool tip toward a shank. 17-. (canceled)8. A variable lead end mill having a plurality of peripheral cutting edges with different helix angles ,the variable lead end mill having a flute bottom diameter of a plurality of helix flutes making up rake faces of the plurality of the peripheral cutting edges, the flute bottom diameter d increasing in an axial direction from a tool tip toward a shank.9. The variable lead end mill of claim 8 , whereinthe peripheral cutting edge has a land consisting only of a peripheral relieving portion.10. The variable lead end mill of claim 9 , whereina cross-sectional shape of the helix flute orthogonal to an axial center on a cutting-edge rear side leading to a heel of the land is defined based on a tangential line drawn from the heel of the land to a flute bottom circle passing through flute bottoms of the plurality of the helix flutes such that a flute wall surface falls within an allowable range defined with a width dimension of 0.05 relative to a cutting diameter on each of both sides of the tangential line.11. The variable lead end mill of claim 8 , whereinthe flute bottom diameter is continuously increased at a half taper angle within a range of 0.5 to 5.5 degrees in the axial direction.12. The variable lead end mill of claim 9 , whereinthe flute bottom diameter is continuously increased at a half taper angle within a range of 0.5 to 5.5 degrees in the axial direction.13. The variable lead end mill of claim 10 , whereinthe flute bottom diameter is continuously increased at a half taper angle within a range of 0.5 to 5.5 degrees in the axial direction.14. The variable lead end mill of claim 9 , whereinedge ...

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Номер записи: 97
09-02-2017 дата публикации

CUTTING INSERT, CUTTING TOOL, AND METHOD OF PRODUCING MACHINED PRODUCT

Номер: US20170036278A1
Автор: Ishi Hirohisa
Принадлежит: KYOCERA CORPORATION

A cutting insert according to one embodiment includes upper and lower surfaces, a side surface including a front side surface, a rear side surface, and a pair of horizontal side surfaces, a first cutting edge, a second cutting edge, and a through hole extending from the upper surface to the lower surface. An opening of the through hole on a side of the upper surface is provided closer to a ridge line where the upper surface and the front side surface intersect each other than a ridge line where the upper surface and the rear side surface intersect each other. An opening of the through hole on a side of the lower surface is provided closer to a ridge line where the lower surface and the rear side surface intersect each other than a ridge line where the lower surface and the front side surface intersect each other. 1. A cutting insert comprising:an upper surface having a substantially rectangular shape;a lower surface having a substantially rectangular shape;a side surface which is located between the upper surface and the lower surface, and comprises a front side surface, a rear side surface, and a pair of horizontal side surfaces;a first cutting edge formed on a ridge line where the lower surface and the front side surface intersect each other;a second cutting edge formed on a ridge line where the upper surface and the rear side surface intersect each other; anda through hole extending from the upper surface to the lower surface,wherein an opening of the through hole on a side of the upper surface is provided closer to a ridge line where the upper surface and the front side surface intersect each other than a ridge line where the upper surface and the rear side surface intersect each other, andan opening of the through hole on a side of the lower surface is provided closer to a ridge line where the lower surface and the rear side surface intersect each other than a ridge line where the lower surface and the front side surface intersect each other.2. The cutting ...

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Номер записи: 98
08-02-2018 дата публикации

SQUARE END MILL

Номер: US20180036809A1
Автор: Maeda Katsutoshi
Принадлежит: Mitsubishi Hitachi Tool Engineering, Ltd.

Square end mill includes long end cutting edge disposed from end portion on outer peripheral side in radial direction to center in the radial direction when a cutting edge portion is viewed from end face side, and short end cutting edges disposed from other end portions on outer peripheral side in radial direction to middles on center side in radial direction, first gashes disposed on regions from lines connecting end portions on center side in radial direction of the short end cutting edges to center in radial direction to the long end cutting edge on rear side in the rotation direction, second and third gashes disposed on rear and front sides in rotation direction of the first gashes, and all gashes formed in curved surface shapes depressed to a shank side on opposite side in axial direction of the cutting edge portion. 1. A square end mill comprising;a cutting edge portion that includes an end cutting edge and a peripheral cutting edge disposed on a tip side in an axial direction of a tool body, the end cutting edge being disposed from a center side to an outer peripheral side in a radial direction, the peripheral cutting edge being continuous with the end cutting edge, whereinthe end cutting edge includes at least one long end cutting edge and at least two short end cutting edges, the long end cutting edge is continuously disposed from an end portion on the outer peripheral side in the radial direction to closer to a center in the radial direction when the cutting edge portion is viewed from an end face side in an axial direction, and the short end cutting edges are continuously disposed from other end portions on the outer peripheral side in the radial direction to middles on the center side in the radial direction when the cutting edge portion is viewed from the end face side in the axial direction, andthe short end cutting edges each include a first gash on a region from a line connecting the end portion on the center side in the radial direction to a ...

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Номер записи: 99
08-02-2018 дата публикации

Rotary cutting tool

Номер: US20180036810A1
Автор: Stojan Stojanovski
Принадлежит: Individual

A rotatable cutting tool includes an elongate body having a longitudinal axis, a proximal end and a distal end and at least one helical flute extending over a length of the elongate body, the helical flute having a first end and a second end. The flute includes a cutting-edge with a first radius from a longitudinal center of the cutting tool, a trailing edge with a second radius from a longitudinal center of the cutting tool, wherein the second radius is smaller than the first radius, a flute surface between the cutting-edge and the trailing edge, the flute surface including a maximum radius at the cutting-edge and a plurality of foam chip shedding exclusions spaced along the cutting-edge of the helical flute, each of the foam chip shedding exclusions providing a gap in the cutting-edge where the radius within the gap is smaller than the first radius.

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Номер записи: 100