Including Holder (i.e., Head) Having Seat For Inserted Tool Patents (Class 407/33)
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Patent number: 11400558Abstract: An apparatus for selectively removing material from both an inner and outer circumference of an end of a tubular workpiece includes a cylindrical outer frame. A blade holder is affixed to the outer frame. The blade holder has a conical configuration with a base located adjacent a first rim of the outer frame and an apex located adjacent a second rim of the outer frame. At least one ID blade is carried by the blade holder and has an ID cutting edge oriented radially outward. At least one OD blade is carried by the blade holder and has an OD cutting edge oriented radially inward. A motive cap has a rim-coupling feature configured for selective engagement sequentially with the first and second rims of the outer frame, to selectively provide rotational motion to the outer frame and thus indirectly to the blade holder.Type: GrantFiled: January 15, 2020Date of Patent: August 2, 2022Assignee: STRIDE TOOL, LLCInventor: Ryan Jarvis
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Patent number: 11103940Abstract: This disclosure relates to a metal-cutting machine tool with a base body, which is rotatable about an axis of rotation relative to a workpiece to be machined, at least one plate seat disposed outside the axis of rotation on the base body and a cutting insert, which is inserted into the plate seat and held therein by at least one fastening means and which is provided with a coating, at least in the area of its cutting edge. In order to compensate for positional tolerances, according to this disclosure the plate seat comprises a positioning surface oriented toward the axis of rotation, and the cutting insert has a reference surface lying against the positioning surface and facing away from the axis of rotation, for radially determining the position of its cutting edge, wherein the coating is also applied to the reference surface.Type: GrantFiled: December 20, 2018Date of Patent: August 31, 2021Assignee: Komet Group GmbHInventors: Waldemar Dubs, Steffen Schmid, Frederik Peters
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Patent number: 9815127Abstract: A ball end mill comprises a gash provided at a front end portion of a main end mill body rotated about an axis; and at least one cutting edge which has a rotational trajectory around the axis that forms a convex hemispherical shape having a center on the axis. The cutting edge is formed at a peripheral edge portion of a wall surface of the gash. A difference between a first and second included angles is within ±7°, where the first included angle is formed between the axis and a straight line connecting the center with a cutting edge position at which a depth of the gash is maximal in a cross-section orthogonal to the cutting edge, and the second included angle is formed between the axis and a straight line connecting the center with a cutting edge position at which a rake angle of the cutting edge is maximal.Type: GrantFiled: March 13, 2013Date of Patent: November 14, 2017Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Genki Matsumoto, Takayuki Azegami
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Publication number: 20150139743Abstract: A single-sided ramping milling insert for ramping operations has top and bottom surfaces and a peripheral surface which extends therebetween. The peripheral surface meets the top and bottom surfaces at respective top and bottom edges. The top edge includes two opposite side cutting edges, two opposite ramping cutting edges, two diagonally opposite raised corner cutting edges and two diagonally opposite associated lowered corner cutting edges. The lowered corner cutting edges are closer to the bottom surface than the raised corner cutting edges. The bottom edge has two diagonally opposite bottom corner edges. The lowered corner cutting edges and the bottom corner edges are convexly curved and a depression is recessed into the peripheral surface between each lowered corner cutting edge and its associated bottom corner edge, the depression configured for providing relief from a convex workpiece surface cut by the lowered corner cutting edge during ramping operations.Type: ApplicationFiled: November 21, 2013Publication date: May 21, 2015Applicant: Iscar, Ltd.Inventor: Assaf BALLAS
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Patent number: 9004822Abstract: A rotary cutting tool, such as a milling cutter (10) includes a central hub (12), a cutting rim (14) and a plurality of spokes (22) connecting the central hub (12) to the cutting rim (14). Each spoke (22) is separated by an opening (32) and polygonal in cross-sectional shape formed by two side walls (22a, 22b), two front walls (22c, 22d) and a rear wall (22e). One of the side walls (22a) of each spoke (22) is formed at a pitch angle (42) with respect to a central axis (11) of the cutting tool (10) that is sufficient to cause lift of chips through the opening (32), thereby providing effective chip evacuation during a material removal operation.Type: GrantFiled: December 12, 2012Date of Patent: April 14, 2015Assignee: Kennametal Inc.Inventors: Mark Alan Francis, Michael David Saffels
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Patent number: 8998542Abstract: A cutting insert according to an embodiment of the invention 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 and a second side surface adjacent to each other; and a cutting edge including a major cutting edge located at an intersection of the upper surface and the first side surface, and a minor cutting edge located at an intersection of the upper surface and the second side surface. The upper surface includes a rake surface which is located along the major cutting edge, and is inclined downward as the upper surface separates from the major cutting edge. The second side surface includes a second upper constraining surface and a second lower constraining surface in order as the second side surface goes from the upper surface to the lower surface.Type: GrantFiled: August 10, 2011Date of Patent: April 7, 2015Assignee: Kyocera CorporationInventor: Hirohisa Ishi
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Publication number: 20150063928Abstract: Provided are: an exchangeable tip cutting tool in which breakage of the threaded section and breakage of the thread ridges during installation of the machining head and under increased cutting load during cutting are limited and which is capable of performing machining with high efficiency; and a machining head and a holder to be used in the exchangeable tip cutting tool. The flank angle (?) of the pressure flank (11) is set to be larger than the flank angle (?) of the clearance flank (12); and a holder (2, 2a) having a female threaded fastening section (8) wherein the angle of the screwing surface of the pressure flank is set to be larger than the angle of the screwing surface of the clearance flank.Type: ApplicationFiled: March 27, 2013Publication date: March 5, 2015Inventors: Katsutoshi Maeda, Makoto Baba
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Patent number: 8967921Abstract: A cutting insert is capable of boring or drilling without the formation of a prepared hole in a workpiece. A cutting edge includes a cutting edge portion extending from the outer peripheral side to the tool center axis side of a cutting tool body when the cutting insert is attached to a mounting seat, reaching a first plane including the tool center axis, and traversing from one side to the other side of a second plane which is perpendicular to the first plane and which includes the tool center axis.Type: GrantFiled: August 8, 2012Date of Patent: March 3, 2015Assignee: Tungaloy CorporationInventor: Takashi Yamaguchi
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Publication number: 20150056025Abstract: A toolholder includes an absorber mass externally mounted to a body portion of the toolholder. A spacer is disposed within one or more recesses formed in a bottom wall of the absorber mass. One or more resilient members are disposed between the body portion and the absorber mass, and one or more resilient members are disposed between the absorber mass and the spacer. A clamping bolt passes through each spacer, through the absorber mass and is threaded into the body portion of the toolholder. A rigidity of the one or more resilient members can be selectively adjusted by the clamping bolts so as to tune the absorber mass for optimum dampening of vibration of the toolholder.Type: ApplicationFiled: August 23, 2013Publication date: February 26, 2015Applicant: Kennametal Inc.Inventors: Weiqing Guo, Zhen Cui, Ruy Frota de Souza Filho
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Publication number: 20150037106Abstract: An indexable cutting insert having a top surface, a bottom surface, and a plurality of side surfaces. A main cutting edge, a ramping cutting edge, a wiper cutting edge, and a nose radius cutting edge are formed at the intersection between the top surface and the side surfaces. Two diagonally side surfaces further comprise a first side surface and a second side surface. The second side surface extends the entire length of the main cutting edge. The first and second side surfaces and two other side surfaces contact an insert pocket of the milling cutter when the cutting insert is mounted the insert pocket of the high-speed milling cutter, thereby providing four-point contact between the cutting insert and the insert pocket.Type: ApplicationFiled: July 30, 2013Publication date: February 5, 2015Applicant: Kennametal Inc.Inventor: Jeffrey Francis Kovac
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Publication number: 20150030399Abstract: 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.Type: ApplicationFiled: May 8, 2014Publication date: January 29, 2015Applicant: Kennametal Inc.Inventors: Ruy Frota de Souza, Leonid B. Sharivker, Sergei Boulakhov, Christoph Gey, Yosi Harush, Alan Bookheimer, Uzi Levy, Stephen M. George
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Publication number: 20150030398Abstract: 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.Type: ApplicationFiled: July 25, 2013Publication date: January 29, 2015Applicant: KENNAMETAL INC.Inventors: RUY FROTA DE SOUZA, LEONID B. SHARIVKER, SERGEI BOULAKHOV, CHRISTOPH GEY, YOSI HARUSH, ALAN BOOKHEIMER, UZI LEVY, STEPHEN MICHAEL GEORGE
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Publication number: 20150016900Abstract: A cutting insert includes two supporting surfaces and four side surfaces located between the two supporting surfaces. Each side surface intersects with two other side surfaces of the four side surfaces to form four corners. The four side surfaces intersect with the two supporting surfaces to form, at two of the four corners, four cutting corners, each cutting corner including a first and a second cutting edge component, and to form, at two other ones of the four corners, four non-cutting corners. Each supporting surface includes a surface portion and an angled supporting surface. A plane of the angled supporting surface intersects with a plane of the surface portion along a line of intersection and forms a non-zero angle with the plane of the surface portion. A toolholder and a cutting tool are also disclosed.Type: ApplicationFiled: December 20, 2012Publication date: January 15, 2015Inventor: Mikael Jansson
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Patent number: 8807884Abstract: Insert pockets of tool holders configured to accommodate multiple differently-shaped cutting inserts are disclosed. Cutting tool holders and cutting tool systems are also disclosed.Type: GrantFiled: December 18, 2009Date of Patent: August 19, 2014Assignee: Kennametal Inc.Inventors: X. Daniel Fang, Jean-Luc Dufour, David J. Wills
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Publication number: 20140227046Abstract: For producing a cylindrical surface that has a surface structure of predetermined geometry suitable for application of material by thermal spraying, a geometrically predetermined groove structure of minimal depth and width is introduced into the surface by a tool embodied as a follow-on tool in that a groove cross-section is processed successively to a final size. In order for the surface to be producible in mass production with constant quality, the groove structure is worked in such that first a base groove is introduced with a groove bottom width that is smaller than the groove bottom width of the finished groove. Subsequently, at least one flank of the base groove is processed for producing an undercut groove profile by a non-cutting action or cutting action wherein the introduced groove structure is deformed in such a way that the groove openings are constricted by upsetting deformations of material.Type: ApplicationFiled: December 23, 2013Publication date: August 14, 2014Applicants: Martinrea Honsel Germany GmbH, GUEHRING OHGInventors: Holger AST, Lutfi BOZKURT, Peter SOMMERFELDT, Horst REIMANN, Bernhard GAND, Frank ORLAMÜNDER
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Publication number: 20140227048Abstract: An internal milling cutter for producing a recess terminating in a radius in a workpiece, in particular for milling a crankshaft, comprises a tool holder having interchangeable cutting inserts detachably attached thereto. For the production of the radius, a plurality of first interchangeable cutting inserts are provided, which are arranged one after another in the direction of cut and have cutting edges which produce complementary portions of the radius, wherein the first interchangeable cutting inserts for producing the radius are identically configured.Type: ApplicationFiled: January 28, 2014Publication date: August 14, 2014Inventors: Markus Heinloth, Jüergen Thomas Baer, Jan Gruenler
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Publication number: 20140227047Abstract: According to the invention a tool system for machining a workpiece is recommended, having a cylinder-shaped retaining shank (12) that has a cutting head holder (16) on an end surface (14) facing the workpiece, a drive mount (20) on an end surface facing the drive (18), a cutting head (22) having at least one cutting edge (24), a cutting head hub (26) corresponding to the cutting head holder (16) on the retaining shank (12), a tool coupling (28) with a tool interface (30), and a coupling hub corresponding to the drive mount (20), wherein the coupling hub (32) and/or the cutting head hub (26) have elevated areas (34, 50) with contact surfaces (36, 52), wherein the elevated areas (34, 50) are distributed in an arrangement in both the circumferential (38) and longitudinal directions of the coupling hub (32) and/or the cutting head hub (26), wherein the contact surfaces (36, 52) make contact on support surfaces (42, 56) on the drive mount (20) and/or on the cutting head holder (16) on the retaining shank (12), andType: ApplicationFiled: April 9, 2014Publication date: August 14, 2014Applicant: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventors: Matthias OETTLE, Sebastian SCHETTER
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Publication number: 20140212226Abstract: Provided is a cutting-edge replaceable cutting tool having a configuration capable of stably supporting a rotational moment acting on a cutting insert clamped on an insert mounting face of a body. It includes a cutting insert, a body including an insert mounting portion for removably mounting the cutting insert and a reception mechanism to receive the rotational moment acting on the cutting insert so as to rotate the cutting insert mounted on the insert mounting portion on a base surface, the mechanism including a first engagement portion formed on a lower surface of the cutting insert and a second engagement portion formed on the base surface of the insert mounting portion which is formed to engage with a specific portion of a surface defining the first engagement portion to receive the rotational moment.Type: ApplicationFiled: April 3, 2014Publication date: July 31, 2014Applicant: TUNGALOY CORPORATIONInventors: Ryuichi SAJI, Kedar Suresh BHAGATH
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Publication number: 20140186128Abstract: Cutting insert comprising a cuboid body having a substantially square top face and bottom face, said top face and bottom face connected by four peripheral adjoining side surfaces, wherein at least two cutting edges are formed at the transition of the top face to at least two side surfaces, that cutting edges defining a plane of the top face. To provide a cutting insert and a corresponding tool suited to produce valve seat surfaces with high precision but still having a rather simple construction and being precisely mountable with ease and less efforts of adjustment, the plane defined by the top face cutting edges of the cutting insert has maximum dimensions of 7 mm×7 mm, the bottom face has a supporting surface formed exactly parallel to the plane defined by the top face cutting edges by means of grinding within a tolerance of less than 5 angular minutes.Type: ApplicationFiled: June 14, 2012Publication date: July 3, 2014Inventors: Kevin Nedzlek, Ken Baertson
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Patent number: 8734069Abstract: A rotary cutting tool is provided with a tool body having a shank portion and a neck portion, an insert attachment seat formed at the tip of the neck portion, and a cutting insert detachably mounted on the insert attachment seat so as to be coaxial with the axis line of the shank portion. The insert attachment seat is provided with a bottom surface on which a side surface which serves as a seating surface of a cutting insert is seated and a wall surface in contact with a peripheral surface of the cutting insert. On the bottom surface, a plurality of recessed grooves which are recessed from the bottom surface to extend in the circumferential direction of the neck portion, with the both ends being opened on an outer peripheral surface of the neck portion.Type: GrantFiled: September 25, 2009Date of Patent: May 27, 2014Assignee: Mitsubishi Materials CorporationInventors: Taro Abe, Toru Narita, Sachio Yamada
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Patent number: 8678716Abstract: A cutting tool assembly has a tool holder, a tool head and a tool head fastening member. The tool holder includes holder front and top ends, with a holder mating surface extending therebetween. A holder clamping portion is located rearwards from the holder mating surface. The tool head has a tool head bottom end provided with a tool head mating surface. A tool head clamping recess extends upwards from the tool head bottom end, rearwards from the tool head mating surface. In an assembled position of the cutting tool assembly, the tool head mating surface forms a dovetail connection with the holder mating surface, and the tool head fastening member clamps the tool head clamping recess, thereby externally clamping the tool head to the tool holder.Type: GrantFiled: April 19, 2012Date of Patent: March 25, 2014Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20140069245Abstract: 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.Type: ApplicationFiled: March 15, 2013Publication date: March 13, 2014Applicant: Apple Inc.Inventors: Napthaneal Y. TAN, Chien-Ming HUANG, Yu YUNDI, Zhuojun LU
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Patent number: 8647026Abstract: A cutting tool includes a tool body having a plurality of pockets for receiving cutting inserts. Each pocket includes a bottom support surface, an axial support surface, a radial support surface and a corner relief between the bottom support surface and the axial support surface. A pocket feature is at least partially located proximate the pocket, and more specifically, at least partially located on a wall between the axial support surface and the radial support surface for reducing a tensile stress of the cutting tool during a machining operation.Type: GrantFiled: November 23, 2011Date of Patent: February 11, 2014Assignee: Kennametal Inc.Inventors: Ruy Frota de Souza Filho, Mark Alan Francis
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Publication number: 20130322975Abstract: The embodiments described herein relate to methods, systems, and structures for cutting a part to form a highly reflective and smooth surface thereon. In some embodiments, the part includes substantially horizontal and vertical surfaces with edges and corners. In described embodiments, a diamond cutter is 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. The diamond cutter has a cutting edge and a land. The cutting edge cuts the surface of the part and the land burnishes the surface of the part to form a highly reflective and smooth surface. Thus, the diamond cutter cuts and burnishes portions of the part, thereby eliminating a subsequent polishing step.Type: ApplicationFiled: September 11, 2012Publication date: December 5, 2013Inventors: Napthaneal Y. Tan, Chien-Ming Huang, Long Hin Lee, Lu Guojin, Yu YunDi, Lv Peng, Yu YiFeng, Wu Chendong, Shi Ze
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Patent number: 8596934Abstract: Milling insert and tool for center cutting milling of material. At least one first cutting edge is terminated in or adjacent to a center axis defined by the milling insert and includes 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 and that is situated between the first cutting edge portion and the center axis. One second cutting edge portion adjoins the first cutting edge portion, and one second cutting edge portion is terminated in or adjacent to the center axis.Type: GrantFiled: August 18, 2011Date of Patent: December 3, 2013Assignee: Sandvik Intellectual Property ABInventors: Ralf Lehto, Rickard Sundström, Johan Bergquist
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Patent number: 8573901Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. The cutting insert is secured within a toolholder having features to secure the insert but at the same time make for efficient removal of the insert from the toolholder.Type: GrantFiled: December 14, 2007Date of Patent: November 5, 2013Assignee: Kennametal Inc.Inventors: Ruy Frota de Souza Filho, Adam South, Gregory A. Hyatt, Paul Brown, Linn Andras, Ted R. Massa, Nitin Chaphalkar
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Patent number: 8540465Abstract: The present invention relates to a tool for machining workpieces, having a shank and a cutting part, wherein the cutting part has a cutting edge section that defines the nominal diameter of the tool, or an insert seat for a cutting insert, the seat having a cutting edge section that defines the nominal diameter of the tool, and wherein the tool has a rotational axis about which the tool rotates in the functionally mounted state.Type: GrantFiled: September 19, 2007Date of Patent: September 24, 2013Assignee: Walter AGInventor: Lothar Fauser
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Publication number: 20130216319Abstract: A toolholder for holding a plurality of types of removable cutting inserts is provided. The toolholder includes a toolholder body having an insert-receiving recess. The recess includes an insert abutment surface for abutting a corresponding insert supporting surface of an insert. The insert abutment surface includes a first portion that abuts a first insert supporting surface of a first type of cutting insert and a second portion abuts a second insert supporting surface of a second type of cutting insert.Type: ApplicationFiled: October 27, 2011Publication date: August 22, 2013Applicant: SECO TOOLS ABInventors: Benjamin Michelet, Bertrand Riviere
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Publication number: 20130195566Abstract: A cutting insert is configured for shoulder milling cutting. The insert has a pair rectangular end surfaces which face away from each other, and pairs of first side surfaces and second side surfaces connecting the end surfaces. First cutting edges and second cutting edges in the first side surface are diagonally symmetrical with respect to a first imaginary median plane, which transverses the middles of both the first side surfaces. The first cutting edges and the second cutting edges in the second side surface are diagonally symmetrical with respect to a second imaginary median plane, which transverses the middles of both the second side surfaces. The second cutting edge is offset toward the first median plane from the first cutting edge. The first cutting edge is offset toward the second median plane from the second cutting edge.Type: ApplicationFiled: November 14, 2011Publication date: August 1, 2013Applicant: Taegu Tec , Ltd.Inventor: Kedar Bhagath
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Publication number: 20130170915Abstract: A cutting insert has a first cutting edge provided with a chip breaker suitable for cutting an outermost region of a hole. The cutting insert has a substantially polygonal upper face, a substantially polygonal lower face, and a plurality of side faces extending between the upper face and the lower face. The plurality of side faces include a main side face constituting a flank of a linear cutting edge and a sub side face constituting a flank of a corner cutting edge; the main side face has a relief angle of 0°, the sub side face has a relief angle larger than 0°. A second cutting edge is further provided at an intersection portion between the main side face and the lower face.Type: ApplicationFiled: February 3, 2013Publication date: July 4, 2013Applicant: TUNGALOY CORPORATIONInventor: TUNGALOY CORPORATION
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Patent number: 8468918Abstract: A milling cutter includes a disk like cutter body having radially directed slots and a central aperture. An exchangeable hub of the milling cutter has two adapter members located on either side of the cutter body and has an inner side wall. One of the adapter members has at least two protrusions formed on the adapter inner side wall and one of the two adapter members has a raised portion located on the adapter inner side wall. The adapter members are secured to the cutter body by the protrusions positioned in the slots and the raised portion positioned in the central aperture.Type: GrantFiled: October 20, 2010Date of Patent: June 25, 2013Assignee: Iscar, Ltd.Inventors: Shimon Kadosh, Yousef Barhoom
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Publication number: 20130156515Abstract: A cutting insert has polygonal first and second end surfaces which are connected by a peripheral side surface, each end surface defining first and second end planes, respectively. The peripheral side surface has first peripheral side portions alternated in the circumferential direction with second peripheral side portions. The first peripheral side portions are inverse copies of the second peripheral side portions. Each peripheral side portion includes first and second sub-faces which form different angles with the first and second end planes. The first and second sub-faces intersect one another between the first and second end planes to form a line which is parallel to the first and second end planes.Type: ApplicationFiled: May 7, 2012Publication date: June 20, 2013Applicant: Iscar, Ltd.Inventors: Amir Satran, Evgeny Tulchinsky
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Publication number: 20130129430Abstract: A cutting insert is provided with a plurality of cutting portions formed at the intersection portion of each end surface and a peripheral surface. Each cutting portion includes first and second cutting edges. First corners and second corners which differ in their internal angles are alternately formed in each end surface. An internal angle of the first corner is smaller than an internal angle of the second corner. Each first cutting edge has a portion extending to approach the median plane as a distance from a corresponding first corner increases. A first side surface portion extending on the peripheral surface from each first cutting edge forms an insert internal obtuse angle, and a second side surface portion extending on the peripheral surface from each second cutting edge forms an insert internal acute angle.Type: ApplicationFiled: January 16, 2013Publication date: May 23, 2013Applicant: TUNGALOY CORPORATIONInventor: TUNGALOY CORPORATION
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Publication number: 20130129433Abstract: 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.Type: ApplicationFiled: January 11, 2013Publication date: May 23, 2013Applicant: Tungaloy CorporationInventors: Osamu MATSUMOTO, Souzou KAWASAKI
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Patent number: 8439609Abstract: A cutting tool includes an insert defining a flank face, a rake face, and a cutting edge between the flank face and rake face. The cutting tool includes micro-nozzles formed in at least one of the tool body and the insert, and aimed at the cutting edge. Each micro-nozzle generates a micro jet of cutting fluid in close proximity to the cutting edge and adjacent to at least one of the flank face and the rake face.Type: GrantFiled: October 3, 2011Date of Patent: May 14, 2013Assignee: Michigan Technological UniversityInventors: Douglas J. Woodruff, Gary W. Pennala, William J. Endres, Nicole Barna, Quincy Schultz, David Thomasini, Matthew Zblewski
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Patent number: 8434973Abstract: A clamping mechanism includes a male portion and a female portion. The male portion has a forwardly extending locking protrusion, and an alignment protrusion extending forwardly of the locking protrusion. A rear of the female portion has a forwardly extending locking bore and an alignment bore extending forwardly from a front end of the locking bore. The locking bore has an insertion bore portion which merges with a gripping bore portion. The insertion bore portion has an insertion bore axis while the gripping bore portion has a gripping bore axis that is spaced apart by a non-zero first distance from the insertion bore axis. In a clamped position, the alignment protrusion abuts a portion of the alignment bore and the locking protrusion abuts the gripping bore portion along a gripping angular extension, thereby forming a circumferential interference fit.Type: GrantFiled: January 15, 2010Date of Patent: May 7, 2013Assignee: Iscar, Ltd.Inventor: Hanoch Guy
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Publication number: 20130108381Abstract: 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.Type: ApplicationFiled: October 26, 2012Publication date: May 2, 2013Applicant: KENNAMETAL INC.Inventor: Kennametal Inc.
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Publication number: 20130108388Abstract: 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.Type: ApplicationFiled: September 15, 2011Publication date: May 2, 2013Applicant: KYOCERA CORPORATIONInventor: Hirohisa Ishi
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Publication number: 20130108387Abstract: 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.Type: ApplicationFiled: July 28, 2011Publication date: May 2, 2013Applicant: KYOCERA CORPORATIONInventors: Hirohisa Ishi, Kayo Yoshida
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Publication number: 20130051935Abstract: A machining tool includes a holder and a cutting head which can be screwed into the holder. The cutting head includes a cutting-edge region and a coupling region. The coupling region includes a flat contact area facing the holder, a cylindrical thread carrier with an external thread adjoining the flat contact area, and a clamping cone adjoining the thread carrier. The holder includes a planar counter-contact area disposed adjacent the flat contact area of the coupling region, a cylindrical internal thread adjoining the planar counter-contact area, and a hollow-conical cone contact area next to the internal thread.Type: ApplicationFiled: January 13, 2011Publication date: February 28, 2013Applicant: KENNAMETAL, INC.Inventors: Michael Schuffenhauer, Rene Xylander
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Publication number: 20130028669Abstract: A tool is provided. The tool comprises an interchangeable cutting portion and a holder to which the interchangeable cutting portion is adapted to be replaceably mounted. The interchangeable cutting portion comprises a first part with at least one cutting edge and a second part for connection to the holder, the second part being provided with a conical external abutment surface and an external cylindrical screw thread. The holder is provided with an internal cylindrical screw thread, to which the external screw thread is removably screwed, and a conical internal abutment surface, the conical external abutment surface and the conical internal abutment surface being mutually engageable for positioning the cutting portion and the holder relative to one another.Type: ApplicationFiled: July 25, 2012Publication date: January 31, 2013Inventor: Emanuele Cigni
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Publication number: 20120315099Abstract: Rotatable multi-operation tool including replaceable cutting inserts of different types, and a basic body rotatable around a center axis with rear and front ends from which there is extending rearward an envelope surface in which at least one chip space is countersunk, which opens in the envelope surface and in the front end. A first cutting insert type is mounted in a first insert seat formed in one side surface of the chip space in the immediate vicinity of the front end and included in a cavity opening in the front end for the cutting insert to partly protrude axially forward from the front end. A second cutting insert type is mounted in a second insert seat formed in the same side surface as the first insert seat and situated axially behind the first insert seat and included in a cavity opening in a part of the envelope surface.Type: ApplicationFiled: May 11, 2012Publication date: December 13, 2012Inventor: Sture SJÖÖ
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Publication number: 20120308317Abstract: A cutting insert has top and bottom surfaces in the thicknesswise direction, and front and rear surfaces in the widthwise direction. First and second cutting edges are formed in the lengthwise direction at intersection portions where the top surface intersects with the front and rear surfaces. Third and fourth cutting edges are formed in the lengthwise direction at intersection portions where the bottom surface intersects with the front and rear surfaces. The first to fourth cutting edges are divided by a plurality of recesses. The plurality of recesses are symmetric with respect to the lengthwise centerline (A), which runs between the first and third cutting edges on the front surface and are asymmetric with respect to the thicknesswise centerline (B) perpendicular to the lengthwise centerline (A).Type: ApplicationFiled: February 18, 2011Publication date: December 6, 2012Applicant: TAEGUTEC, LTD.Inventors: Chang Hee Choi, Chang Gyu Park
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Publication number: 20120207869Abstract: A cutting tool including a cutting blade, a shank section, and a supporting member for supporting and fixing the cutting blade, the cutting blade being fixed on one end of the supporting member, and the other end of the supporting member being fixed to the shank section, wherein a void formed among the shank section, the cutting blade, and the supporting member is filled with a filling agent.Type: ApplicationFiled: October 18, 2010Publication date: August 16, 2012Inventors: Toshiyuki Imai, Shigeru Hosoe, Toshiya Takitani, Hiroyuki Matsuda, Tomoyuki Morimoto
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Publication number: 20120155976Abstract: A cutting insert of the present invention includes an upper surface; a lower surface; a side surface which is connected to the upper surface and the lower surface and has a first side surface and a second side surface in order; and a cutting edge includes a first flat cutting edge and a first major cutting edge in order in an intersection region of the first side surface and the upper surface, and has a second flat cutting edge and a second major cutting edge in order in an intersection region of the second side surface and the upper surface. The first side surface includes a first chamfered side surface with a curved shape, a first corner side surface with a planar shape, and a first major side surface in order. The second side surface includes a second chamfered side surface with a curved shape, a second corner side surface with a planar shape, and a second major side surface in order.Type: ApplicationFiled: August 30, 2010Publication date: June 21, 2012Inventor: Hirohisa Ishi
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Publication number: 20120128440Abstract: A cutting tool of the present invention includes a cutting insert and a holder having at a front end part thereof an insert pocket for attaching the cutting insert. The insert pocket includes a seating part including a seating face which is brought into contact with the lower surface of the cutting insert, and is inclined forward in a rotation direction of the holder as the seating face separates from the front end part of the holder; and a constraining part brought into contact with first and second side surfaces adjacent to each other among the side surface of the cutting insert.Type: ApplicationFiled: July 29, 2010Publication date: May 24, 2012Inventor: Hirohisa Ishi
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Publication number: 20120121349Abstract: The present invention provides an appliance for chip removal applications comprising a vibration-damping material wherein the vibration-damping material is a material arranged by nano-dimensional cluster form. The present invention additionally provides a method for manufacturing said appliance. The present invention provides also an appliance obtainable by said method. Additionally the present invention provides an article or work piece for use in an appliance for chip removal applications. Also a computer program is provided for controlling the above method.Type: ApplicationFiled: September 29, 2008Publication date: May 17, 2012Inventors: Ragnhild Mihic, Peter Mihic
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Patent number: 8171608Abstract: Tool and method for machining a workpiece, such as a milling tool, including at least one cutting insert and including a grinding wheel, for machining a workpiece, and the method thereof. The grinding wheel is axially extendable relative to a base body of the tool via fluid actuation from a cooling fluid supply. Additionally, cooling fluid is also provided to a grinding surface of the grinding wheel.Type: GrantFiled: December 7, 2007Date of Patent: May 8, 2012Assignee: Kennametal Inc.Inventors: Dirk Kammermeier, Karen Anne Craig
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Publication number: 20120082519Abstract: A rotary cutting tool has a disc-shaped tool body and a cutting insert. The cutting insert is resiliently retained by jaws having tangentially-oriented abutment surfaces and defining, together with a holding member, an insert pocket of the tool body. The holding member is configured to bend in a radially-outward direction during rotation of the tool body about the rotation axis, and to engage a stopping recess of the cutting insert to oppose dislodgement of the cutting insert from the tool body.Type: ApplicationFiled: September 22, 2011Publication date: April 5, 2012Applicant: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 8042438Abstract: An exemplary cutting apparatus for cutting a workpiece includes a base, a cutting device and a first driving device. The cutting device is movably mounted on the base. The cutting device includes a first blade and a first vibrator. The first blade is movable in a moving direction toward the workpiece. The first vibrator is configured for vibrating the first blade to increase a shearing force applied to the workpiece. The first driving device is configured for driving the first blade to move.Type: GrantFiled: June 13, 2008Date of Patent: October 25, 2011Assignee: Hon Hai Precision Co., Ltd.Inventor: Chien-Feng Huang