公开(公告)号：WO1990015034A1

公开(公告)日：1990-12-13

申请号：PCT/US1990002812

申请日：1990-05-17

Applicant: KENNAMETAL INC.

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

IPC: C04B35/10

CPC classification number: B23B27/145 ,  B23B2224/04 ,  B23B2224/28 ,  B23B2226/72 ,  B23B2228/61 ,  C04B35/111 ,  C04B35/803

Abstract: A ceramic composition is provided having an alumina based matrix with silicon carbide whiskers and titanium carbide phase dispersed therein. The composition includes about 1.0 to less than 30 volume percent silicon carbide whiskers, about 5 to about 40 volume percent titanium carbide phase. The sum of the volume percents of silicon carbide whiskers and titanium carbide phase is less than about 60 volume percent. This composition is for use as a cutting. The cutting insert (10) has a rake face (30), a flank face (50) and a cutting edge (70) at the junction of the rake and flank faces.

公开(公告)号：WO1990014913A1

公开(公告)日：1990-12-13

申请号：PCT/US1990002126

申请日：1990-04-18

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ARMBRUST, William, D.

IPC: B23B27/22

CPC classification number: B23B25/02 ,  B23Q1/0036 ,  F16L27/087 ,  F16L29/02 ,  Y10T82/2585 ,  Y10T407/118 ,  Y10T407/14 ,  Y10T407/222

Abstract: A tool assembly having a tool block (50) and a tool holder (12). The tool block has a fluid passage (92) having an outlet (93). A fluid passage (104) in the tool holder shank (14) has an inlet (102) including a shallow recess (99) configured to maintain fluid communication through a range of relative movement of the block and holder. The fluid passage terminates in a discharge orifice (114) to direct a fluid jet at the chip being removed from the workpiece.

Abstract translation: 一种具有工具块（50）和工具架（12）的工具组件。 工具块具有具有出口（93）的流体通道（92）。 工具夹柄（14）中的流体通道（104）具有入口（102），入口（102）包括浅凹槽（99），该凹槽构造成保持流体连通通过块和夹持器的相对运动的范围。 流体通道终止于排出孔（114），以引导在从工件移除的芯片处的流体射流。

公开(公告)号：WO1990011156A1

公开(公告)日：1990-10-04

申请号：PCT/US1990000924

申请日：1990-02-16

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  BRYANT, William, A. ,  GRAB, George, P.

IPC: B23B27/14

CPC classification number: B23B27/145 ,  B23B2228/36 ,  C23C30/005

Abstract: An indexable metalcutting insert is provided having a cobalt cemented tungsten carbide substrate (32) with a multilayer refractory coating (34) thereon. The substrate (32) has a cobalt content of 6.1 to 6.5 weight percent and is characterized by a hardness of 90.8 to 91.6 Rockwell A and a magnetic coercive force of 110 to 180 oerstads. The coating (34) contains at least a plurality of alumina layers (42) which are separated from and bonded to each other by a group IVB metal nitride (44), such as titanium nitride, and which are bonded to the substrate (32) by a backing layer of 5 to 8 mu in thickness, composed of a carbide and/or carbonitride of titanium zirconium and/or hafnium.

Abstract translation: 提供了一种可转位金属切削刀片，其具有在其上具有多层耐火涂层（34）的钴粘结碳化钨基底（32）。 基材（32）的钴含量为6.1至6.5重量％，其特征在于硬度为90.8至91.6洛氏硬度A，磁矫顽力为110至180奥斯特。 涂层（34）至少包含多个氧化铝层（42），其通过诸如氮化钛的IVB族金属氮化物（44）彼此分离并结合，并且结合到衬底（32）上， 由厚度为5至8μm的背衬层由钛锆和/或铪的碳化物和/或碳氮化物组成。

公开(公告)号：WO1990001106A1

公开(公告)日：1990-02-08

申请号：PCT/US1989003036

申请日：1989-07-13

Applicant: KENNAMETAL INC.

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

IPC: E21C35/18

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

Abstract: A cutter bit (1) for use in construction and/or excavation applications is provided having a hard wear resistant tip (3) joined to a steel shank (5). The wear resistant tip (3) is rotationally symmetric about its longitudinal axis (X-X) and has a rear end having a socket (23) therein in which is bonded a steel protrusion (17) on the forward end of the steel shank (5). The tip socket (23) and an outer rearmost facing surface (25) on the tip rear end have respective pluralities of first and second dimples (31, 32) formed thereon and protruding therefrom for spacing, centering and aligning the tip (3) on the bit body (5) to facilitate formation of a braze joint (7) of a desired given cross-sectional thickness profile between the tip (3) and bit body (5).

公开(公告)号：WO1989005702A1

公开(公告)日：1989-06-29

申请号：PCT/US1988004443

申请日：1988-12-13

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  RAMUNAS, Valdas, S.

IPC: B23B31/04

CPC classification number: F16B21/16 ,  B23B31/103 ,  F16B2/18 ,  Y10S279/904 ,  Y10S403/08 ,  Y10T82/2589 ,  Y10T279/17769 ,  Y10T403/595 ,  Y10T409/30952

Abstract: A quick change mechanism (10) is provided between a male member (11) and a female member (12), which has a socket (28) with an axis (27). A flange (14, 19) is provided on each member, and in the flange (14) of the female member (12), an eccentric circular cam (32) is pivotably mounted on one side of the socket (28). The cam (32) may be pivoted through an arc between a locked and an unlocked condition in a single plane. The unlocked condition moves the cam (32) laterally outwardly beyond the cam follower surface (43) in the male member (11). As the cam (32) is rotated towards the locked condition, the cam locking surface (39) moves in a single plane laterally inwardly and establishes an axially inward force on the cam follower surface (43). The quick-change mechanism (10) is small and compact and contained entirely within the flange (14) of the female member (12).

Abstract translation: 在阳构件（11）和阴构件（12）之间提供快速更换机构（10），其具有带轴线（27）的插座（28）。 在每个构件上设置有凸缘（14,19），并且在阴构件（12）的凸缘（14）中，偏心圆形凸轮（32）可枢转地安装在插座（28）的一侧上。 凸轮（32）可以在单个平面中的锁定和解锁状态之间的圆弧中枢转。 解锁状态使凸轮（32）横向向外移动超过凸形构件（11）中的凸轮从动件表面（43）。 当凸轮（32）朝向锁定状态旋转时，凸轮锁定表面（39）在单个平面中横向向内移动，并在凸轮从动表面（43）上形成轴向向内的力。 快速更换机构（10）小而紧凑，并且完全包含在阴构件（12）的凸缘（14）内。

公开(公告)号：WO1989003265A1

公开(公告)日：1989-04-20

申请号：PCT/US1988002862

申请日：1988-08-19

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  SANTHANAM, Anakkavur, Thattai ,  CONLEY, Edward, V.

IPC: B22F07/06

CPC classification number: C22C29/04 ,  F02B3/06 ,  Y10T428/12056

Abstract: A cermet cutting tool is provided having a composition containing the following: about 3.5 to about 6.5 w/o (weight percent) nickel; about 4.5 to about 7.5 w/o cobalt, wherein the sum of nickel plus cobalt is between about 8 to 11 w/o; about 20 to about 25 w/o tungsten; about 5 to about 11 w/o molybdenum; up to about 6 w/o tantalum plus niobium; up to about 0.05 w/o chromium; up to about 1 w/o aluminum; and up to about 3 w/o vanadium; with the remainder being essentially titanium, carbon, and nitrogen, wherein at least substantially all the carbon and nitrogen are present as metal compounds selected from the group consisting of metal carbonitrides and mixtures of metal carbonitrides and metal carbides where said metal is selected from the group consisting of tungsten, molybdenum, titanium, tantalum, niobium, vanadium, chromium, their solid solutions and their mixtures.

公开(公告)号：WO1988009243A1

公开(公告)日：1988-12-01

申请号：PCT/US1988001222

申请日：1988-04-18

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  MEHROTRA, Pankaj, Kumar ,  BILLMAN, Elizabeth, R. ,  NORTH, Bernard

IPC: B24D03/02

CPC classification number: B24D3/06 ,  C04B35/111 ,  C04B35/803

Abstract: A ceramic composition comprising a polycrystalline alumina matrix having titanium carbide whiskers distributed therein. The composition comprises 50 to 90 volume percent high purity alumina, 10 to 50 volume percent single crystal titanium carbide whiskers, and up to 3 volume percent being the residue of sintering aids.

公开(公告)号：WO1988005358A1

公开(公告)日：1988-07-28

申请号：PCT/US1987002976

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: B23B31/1076 ,  Y10T82/2589 ,  Y10T403/591 ,  Y10T409/30952

Abstract: An apparatus (10) for holding a tubular shank (12) of a toolholder (14) is provided with a tool support member bore (22) for receiving the shank (12) and first and second radially reciprocably movable clamping jaws (24, 26) for holding the shank (12) in the bore (22). The movement of the clamping jaws (24, 26) is radially activated by rotation of a radially aligned differentially threaded member (28) engaging both clamping jaws (24, 26).

公开(公告)号：WO1988005356A1

公开(公告)日：1988-07-28

申请号：PCT/US1987002956

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: B23B29/046 ,  Y10T82/2585 ,  Y10T82/2589 ,  Y10T403/592 ,  Y10T407/227 ,  Y10T409/309464

Abstract: A lock rod (38) is provided extending along and reciprocally movable along an axis (Y-Y) and having a cylindrical cross section near one end (88). Two circumferentially spaced depressions (94) are located in the cylindrical surface (92) for receiving locking elements (36) in an unlocked position. Extending from the first depression (94) is a ramp (44) inclined with respect to axis (Y-Y) and from the second depression (94) is a groove (46) parallel to axis (Y-Y) for driving locking elements (36) radially outwardly to abut against a toolholder shank (14) to lock it onto a tool support member (34).

公开(公告)号：WO1998027316A1

公开(公告)日：1998-06-25

申请号：PCT/US1997021715

申请日：1997-11-25

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  MONTGOMERY, Robert, H., Jr.

IPC: E21C35/197

CPC classification number: E21C35/197 ,  E21C2035/191

Abstract: A tool sleeve rotation limitation system (100) for reducing the rotation of a tool sleeve (114) within a support block bore (124) of a support block (112), the tool sleeve having a forward portion (128) and a rearward portion (132). The tool sleeve rotation limitation system (100) comprises a rotation limitation member (116) located in an engaging relationship between the rearward portion (132) of the tool sleeve and the block bore (124) such that the rotation limitation member (116) will be moved axially along the rearward portion of the tool sleeve (114) as the tool sleeve is inserted into the block bore so as to engage the block bore and the rearward portion (132) of the tool sleeve and reduce rotation of the tool sleeve (114) within the block bore (124).

Abstract translation: 一种用于减小工具套筒（114）在支撑块（112）的支撑块孔（124）内的旋转的工具套筒旋转限制系统（100），所述工具套筒具有前部（128）和后部 （132）。 工具套筒旋转限制系统（100）包括旋转限制构件（116），其位于工具套筒的后部（132）和块孔（124）之间的接合关系中，使得旋转限制构件（116）将 当工具套筒插入块孔中时，沿着工具套筒（114）的后部轴向移动，以便与工具套筒的块孔和后部（132）接合，并减少工具套筒的旋转 114）内。