公开(公告)号：WO1991008075A1

公开(公告)日：1991-06-13

申请号：PCT/US1990005977

申请日：1990-10-18

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  OSHNOCK, Robert, E.

IPC: B23C07/00

CPC classification number: B23B31/1074 ,  B23B29/046 ,  B23B31/1071 ,  Y10T82/2585 ,  Y10T279/17752 ,  Y10T279/17821 ,  Y10T408/95 ,  Y10T409/30952

Abstract: A tool holder assembly (10) includes a first member (14) formed with a cylindrical bore (56) and a second member (12) including a cylindrical portion (18) receivable in the bore of the first member. A locator screw hole (60) extends radially through the first member. The second member is formed with a conical face (38) having a centerline perpendicular to its longitudinal centerline. A locator screw (72) is threaded into the locator screw hole in the first member. The locator screw includes a conical nose (78) adapted to engage the conical face of the second member when the locator screw is turned in a first direction. The locator screw cooperates with the conical face of the second member to radially locate the second member with respect to the first member.

公开(公告)号：WO1990013422A1

公开(公告)日：1990-11-15

申请号：PCT/US1990001986

申请日：1990-04-12

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  QUINTO, Dennis, T. ,  KAUFMANN, Helmut, Josef

IPC: B32B18/00

CPC classification number: B23B27/145 ,  B23B2222/16 ,  B23B2222/28 ,  B23B2222/84 ,  B23B2228/36 ,  B32B18/00 ,  C04B2235/6587 ,  C04B2237/068 ,  C04B2237/343 ,  C04B2237/346 ,  C04B2237/348 ,  C04B2237/36 ,  C23C14/0641 ,  C23C14/0664 ,  C23C30/005 ,  Y10T407/23 ,  Y10T407/27 ,  Y10T428/24942 ,  Y10T428/263

Abstract: A cutting tool is provided composed of a hard substrate having a PVD coating thereon having three layers. The innermost of first layer (1) is composed of a group IVB (titanium, hafnium or zirconium) metal alloy. The middle or second layer (2 and 3) is composed of a group IVB carbonitride. The outermost or third layer (4) is also composed of a group IVB metal nitride. The PVD coating is characterized by high hardness and high residual compressive stresses.

公开(公告)号：WO1990011862A1

公开(公告)日：1990-10-18

申请号：PCT/US1990001490

申请日：1990-03-20

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  MASSA, Ted, R. ,  SIDDLE, David, R.

IPC: B23B47/00

CPC classification number: B23B31/006 ,  B23Q11/0035 ,  F16F15/32 ,  G01M1/36 ,  Y10S82/903 ,  Y10T279/24 ,  Y10T408/76 ,  Y10T409/303752 ,  Y10T409/304312 ,  Y10T464/50

Abstract: The present invention entails a method and apparatus for balancing a high speed rotary tool assembly (10). A pair of closed balancing rings (28) are journalled about a cylindrical bearing surface (18) formed around a rotary tool holder (12) with each ring being rotatively mounted about the bearing surface (18) independently of each other. The tool holder (12) is adapted to receive and hold a cutting tool (16). After determining the unbalance of the tool holder (12) and cutting tool (16), the rings (28) are rotatively adjusted about the bearing surface (18) to create an unbalance within the tool rings (28) and the position of the tool rings (28) is adjusted such that the created unbalance of the tool rings (28) is disposed opposite the determined unbalance of the rotary tool holder (12) and cutting tool (16).

公开(公告)号：WO1990011383A1

公开(公告)日：1990-10-04

申请号：PCT/US1990001312

申请日：1990-03-09

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  MATERKOWSKI, James, P.

IPC: C22C29/00

CPC classification number: B22D19/14 ,  E02F9/285 ,  Y10T428/12486 ,  Y10T428/12576 ,  Y10T428/12965 ,  Y10T428/12972

Abstract: A tough, wear resistant body is provided. The body includes hard carbide particles embedded in and bonded with a first casted ferrous matrix material such as steel or cast iron. The body may be embedded in and bonded with a second steel matrix to form a wear resistant composite. The second steel matrix has a melting point at least 200 degrees F greater than the melting point of the first ferrous matrix, thereby facilitating a metallurgical bond between the surface of the wear resistant body and the second steel matrix. The composite structure is particularly suitable for earthmoving and other severe mechanical applications.

公开(公告)号：WO1990005121A1

公开(公告)日：1990-05-17

申请号：PCT/US1989004585

申请日：1989-10-13

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  MEHORTRA, Pankaj, Kumar ,  BILLMAN, Elizabeth, R.

IPC: C04B35/56

CPC classification number: C04B35/119 ,  C04B35/645 ,  C04B35/803

Abstract: A metal cutting insert is provided with an alumina based ceramic composition composed of (in volume percent, v/o): about 1.5 to 12.5 silicon carbide whiskers and about 7.5 to 17.5 v/o zirconia. The silicon carbide whiskers and zirconia are substantially homogeneously distributed in an alumina base matrix. Preferably, at least about 7 v/o of the alumina based ceramic composition is tetragonal zirconia.

Abstract translation: 金属切削刀片设置有由（体积％，v / o）：约1.5至12.5碳化硅晶须和约7.5至17.5v / o氧化锆组成的氧化铝基陶瓷组合物。 碳化硅晶须和氧化锆基本均匀地分布在氧化铝基体中。 优选地，至少约7v / o的氧化铝基陶瓷组合物是四方晶氧化锆。

公开(公告)号：WO1990002011A1

公开(公告)日：1990-03-08

申请号：PCT/US1989003611

申请日：1989-08-22

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ERICKSON, Robert, A.

IPC: B23B29/04

CPC classification number: B23B31/263 ,  B23B29/046 ,  F16B2/16 ,  Y10T82/2585 ,  Y10T82/2589 ,  Y10T407/227 ,  Y10T409/309464

Abstract: The present invention relates to an automatic clamping unit (10) of the type having a spring (26) loaded lockrod (20) that is movable between an unlocked and locked position. A pair of locking balls (32, 34) are confined about the locking rod (20) and are operative to move outwardly for engagement with the shank (44) of a tool holder (12) in response to the locking rod (20) moving from the unlocked position to the locked position. The lock rod (20) of the present invention includes a variable sloped ramp (30) for engagement with each locking ball (32, 34). As each locking ball (32, 34) moves along the variable sloped locking ramp, the mechanical advantage applied to the locking balls (32, 34) through the ramp (30) varies due to the variation in slope. Each locking ramp (30) is particularly configured such that the resultant locking load exerted by the locking balls (32, 34) against the shank (44) of the tool holder (12) is relatively constant although the position of the locking rod (20) and the force being applied to the locking rod (20) varies.

公开(公告)号：WO1990001386A1

公开(公告)日：1990-02-22

申请号：PCT/US1989003356

申请日：1989-08-03

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  LYON, James, R. ,  MORSCH, Gary, L. ,  MURRAY, Gerald, D. ,  ROBINSON, James, B.

IPC: B23B27/16

CPC classification number: B23B27/045 ,  B23B27/06 ,  B23B2222/16 ,  B23B2222/28 ,  B23B2226/125 ,  B23B2226/315 ,  B23B2265/34 ,  Y10T407/24 ,  Y10T407/25 ,  Y10T407/26

Abstract: A cutting insert (10) with improved chip control and metal cutting capabilities and a toolholder (50) with an improved clamping arrangement for use in combination therewith. The insert includes a first notch (24) disposed in the insert body extending from the cutting end (14) to the mounting end (16) thereof. A top wall (26) of the insert body has a forward section (28) with a cutting edge (34), a middle section (30) with a second notch (36) extending across substantially the entire insert body and a rearward section (32). The toolholder includes an inverted V-shaped portion (68) extending longitudinally to engage the bottom of the cutting insert and a clamp element having a transversely extending projection (76) adapted to engage the top of the cutting insert.

公开(公告)号：WO1990001105A1

公开(公告)日：1990-02-08

申请号：PCT/US1989003035

申请日：1989-07-13

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  STIFFLER, Stephen, P. ,  BEACH, Wayne, H. ,  PRIZZI, John, J.

IPC: E21C35/18

CPC classification number: E21C35/183 ,  E21C2035/1806 ,  E21C2035/1813 ,  E21C2035/1816 ,  Y10T407/26

Abstract: A cemented carbide tip (3) is provided with a socket (21) for mounting onto the steel shank (5) of a cutter bit. The socket (21) has an annular convex surface (23) therein extending from the earth engaging portion of the tip (3) radially inwardly and forwardly. This convex surface (23) is brazed to the forward end (9) of steel shank (5) to form a cutter bit.

公开(公告)号：WO1988005357A1

公开(公告)日：1988-07-28

申请号：PCT/US1987002963

申请日：1987-11-13

Applicant: KENNAMETAL INC. ,  KRUPP WIDIA GMBH

Inventor： KENNAMETAL INC. ,  KRUPP WIDIA GMBH ,  ERICKSON, Robert, A.

IPC: B23B29/04

CPC classification number: B23B31/1071 ,  B23B29/046 ,  B23B2265/12 ,  Y10T82/2585 ,  Y10T82/2589 ,  Y10T403/592 ,  Y10T407/227 ,  Y10T409/30952

Abstract: A tubular toolholder shank (84) is releasably held in the bore (18) of a tool support member (12) by a releasable locking mechanism (20) mounted in the bore (18) of the tool support member (12) and receivable in the tubular toolholder shank (84). The locking mechanism (20) has an actuating member (32) radially extending through the wall (92) of the tubular shank (84).

Abstract translation: 通过安装在工具支撑构件（12）的孔（18）中的可释放的锁定机构（20）可释放地将管状刀架（84）可释放地保持在工具支撑构件（12）的孔（18）中， 管状刀架（84）。 锁定机构（20）具有径向延伸穿过管状柄（84）的壁（92）的致动构件（32）。

公开(公告)号：WO1998005497A1

公开(公告)日：1998-02-12

申请号：PCT/US1997007336

申请日：1997-05-02

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ARTHUR, Scott, H.

IPC: B32B27/16

CPC classification number: B23C5/207 ,  B23B27/164 ,  B23B2200/0461 ,  B23B2200/3627 ,  B23B2260/104 ,  Y10T407/2214 ,  Y10T407/2216 ,  Y10T407/23

Abstract: An indexable cutting insert (10, 106, 126) which presents a rake face (12, 14, 110, 112, 130, 132) and a flank face (16, 108, 128) which intersect to form a generally circular cutting edge (18, 20, 114, 116, 134, 136). At least one of the flank face and the rake face has a visually perceivable indicia (22, 24, 26, 28, 30, 118, 120, 122, 138) thereon so as to indicate a plurality of discrete indexable positions of the cutting insert.

Abstract translation: 一个可转位的切削刀片（10,106,126），其设有前刀面（12,14,110,112,130,132）和一个相互相交以形成大致圆形的切削刃的后刀面（16,108,128） 18,20,114,116,134,136）。 侧面和前刀面中的至少一个在其上具有视觉上可感知的标记（22,24,26,28,30,118,120,122,138），以便指示切削刀片的多个离散可分度位置 。