公开(公告)号：WO1995011102A1

公开(公告)日：1995-04-27

申请号：PCT/US1994010921

申请日：1994-09-27

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ASHLEY, John, P. ,  NIEBAUER, Kenneth, L.

IPC: B23B27/22

CPC classification number: B23B27/22 ,  B23B27/1633 ,  Y10T407/112 ,  Y10T407/118 ,  Y10T407/2268

Abstract: A metal cutting tool assembly (1) having an automatically adjustable chipbreaker (23) is provided that comprises a cutting insert (11) for cutting a relatively rotating workpiece, a holder (3) for holding the insert (11), an insert driver (5) for applying a cutting force between the insert (11) and the workpiece, a chipbreaker (23) having a surface (27) that is effective in breaking chips (55, 56) of different thicknesses when positioned at different distances from the cutting edge (19) of the insert (11), and a mounting mechanism (30) for movably mounting the chipbreaker (23) onto the holder (3). The mounting mechanism (30) includes a spring (50) for automatically adjusting the distance between the chipbreaking surface (27) of the chipbreaker (23) and the cutting edge (19) of the insert (11) in response to the forces applied to the chipbreaker (23) by the metal chips (55, 56) that result from the cutting operation. The mounting mechanism (30) may allow the chipbreaker (23) to either slidably reciprocate on the holder (3) toward and away from the cutting edge (19), or to pivotally move with respect to the cutting edge (19). In both cases, the deflection of the spring (50) is proportional to the thickness of the metal chips (55, 56) engaging the chipbreaking surface (27), which in turn automatically provides the appropriate chipbreaking geometry. The inventive tool assembly allows the same chipbreaker (23) to effectively break chips (55, 56) of widely varying thicknesses which are created when the cutting insert (11) is used to make a variety of different types of cuts in a machining operation.

Abstract translation: 提供一种具有可自动调节的破碎器（23）的金属切割工具组件（1），其包括用于切割相对旋转的工件的切削刀片（11），用于保持刀片（11）的刀架（3），刀片驱动器 5），用于在所述插入件（11）和所述工件之间施加切割力，所述破碎机（23）具有表面（27），所述破碎机（23）在与所述切割器不同的距离定位时有效地破碎不同厚度的切屑（55,56） 插入件（11）的边缘（19）和用于将破碎锤（23）可移动地安装到保持器（3）上的安装机构（30）。 所述安装机构（30）包括弹簧（50），用于响应于施加到所述插入件（11）的力自动调整所述破碎机（23）的切碎表面（27）与所述插入件（11）的切割刃（19） 由切割操作产生的金属屑（55,56）的破碎机（23）。 安装机构（30）可以允许破碎机（23）朝向和远离切削刃（19）滑动地在保持器（3）上往复运动，或者相对于切削刃（19）枢转运动。 在这两种情况下，弹簧（50）的偏转量与接合破碎表面（27）的金属屑（55,56）的厚度成比例，这进而自动提供适当的破碎几何形状。 本发明的工具组件允许相同的破碎锤（23）有效地破坏在切削刀片（11）用于在加工操作中进行各种不同类型的切削时产生的广泛变化的厚度的切屑（55,56）。

公开(公告)号：WO1994007637A1

公开(公告)日：1994-04-14

申请号：PCT/US1993007871

申请日：1993-08-18

Applicant: KENNAMETAL INC.

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

IPC: B23C05/26

CPC classification number: B23B29/046 ,  B23B31/1071 ,  B23B2260/004 ,  Y10T82/2589 ,  Y10T407/2246

Abstract: A quick-change tool holder (10) includes a tool support member (12) which is adapted to be mounted on a lathe turret or mounting block of a machine, a cutting head (14) formed with a seat (36) for receiving a cutting tool (38), and a clamping mechanism (16) for clamping the cutting head (14) to the support member (12). The tool support member (12) includes an axial bore (28) which receives a tubular shank (32) of the cutting unit (14). The clamping mechanism (16) is disposed within the axial bore (28) and includes a pair of radially expandable locking elements (94) to engage the tubular shank (32) of the cutting unit (14). The clamping mechanism (16) includes a key (82) which engages with a corresponding keyway (48) on the tubular shank (32) for angularly locating the cutting unit (14). Means are provided for rotating the clamping means (16) about a longitudinal axis of the support member (12) to change the angular location of the cutting unit (14).

Abstract translation: 快速更换工具架（10）包括适于安装在机床的车床转台或安装块上的工具支撑构件（12），形成有座（36）的切割头（14），用于接收 切割工具（38）和用于将切割头（14）夹持到支撑构件（12）的夹紧机构（16）。 工具支撑构件（12）包括容纳切割单元（14）的管状柄（32）的轴向孔（28）。 夹紧机构（16）设置在轴向孔（28）内并且包括一对可径向扩张的锁定元件（94），以与切割单元（14）的管状柄（32）接合。 夹紧机构（16）包括与管状柄（32）上的对应的键槽（48）接合的用于角度地定位切割单元（14）的键（82）。 提供了用于围绕支撑构件（12）的纵向轴线旋转夹紧装置（16）以改变切割单元（14）的角位置的装置。

公开(公告)号：WO1993025065A1

公开(公告)日：1993-12-23

申请号：PCT/US1993004848

申请日：1993-05-21

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ROWLETT, Don, C.

IPC: A01C23/02

CPC classification number: A01B15/04 ,  A01C23/021 ,  E02F9/2875

Abstract: A self-sharpening pyramidal shaped insert (24) of a refractory hard metal for use as a leading penetrating element of a soil opener member (10) of an agricultural tool. The insert includes a boss member (44) of a generally frustoconical shape including a circular bottom (46) and outwardly curved side surface (48) extending upwardly from the circular bottom and terminating in a flange (50), and a penetrating tip (58) having four nonparallel triangular sides (60), each triangular side having a common leg with a bordering triangular side and a third leg contiguous with the flange (50). The triangular sides (60) converge to a common vertex. The insert inhibits wear of the agricultural tool and contributes to proper soil flow as the agricultural tool cuts a slice in the soil.

公开(公告)号：WO1993025064A1

公开(公告)日：1993-12-23

申请号：PCT/US1993004959

申请日：1993-05-21

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  ROWLETT, Don, C.

IPC: A01B23/06

CPC classification number: A01B23/06 ,  A01B15/18 ,  Y10T83/9403

Abstract: An agricultural tool including a disc blade (10) incorporating hard wear resistant inserts (24) for attachment to an axial member of an agricultural tool for rotation through the soil. The disc blade includes parallel spaced flat round front (12) and rear (14) surfaces having a central cylindrical opening (16). The front surface tapers radially outwardly to the rear surface thereby defining a common outer rim (18) having a knife edge (20). A plurality of notches (22) are spaced circumferentially along the front surface (12) of the disc blade and inwardly from the outer edge (20) of the front surface of the disc blade. The notches are configured to receive a plurality of hard wear resistant inserts (24) to provide improved wear resistance.

公开(公告)号：WO1992011438A1

公开(公告)日：1992-07-09

申请号：PCT/US1991008904

申请日：1991-11-26

Applicant: KENNAMETAL INC. ,  NSS INDUSTRIES

Inventor： KENNAMETAL INC. ,  NSS INDUSTRIES ,  MONTGOMERY, Jr., Robert, H. ,  SHEIRER, Daniel, C. ,  ELAM, James, E. ,  EWING, Paul, E.

IPC: E21B10/56

CPC classification number: E21B10/38 ,  B21K5/02 ,  E21B10/46 ,  E21B10/58

Abstract: A drill bit (10) for drilling holes in a work surface including a hard wear-resistant insert (12) and a metal body (14) including a top working surface (16) of an irregular surface configuration having a slot (36) for retaining the hard wear-resistant insert (12). The body (14) having a metal grain structure substantially parallel with the contour of the body. In a preferred embodiment the body (14) is formed by cold-heading.

公开(公告)号：WO1992004529A1

公开(公告)日：1992-03-19

申请号：PCT/US1991001886

申请日：1991-03-21

Applicant: KENNAMETAL INC.

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

IPC: E21C35/18

CPC classification number: E21C35/197 ,  E21C2035/1806 ,  E21C2035/1816

Abstract: A rotatable cutting tool (10) for impacting and fragmenting a substrate. The tool (10) has a tool body (12) containing a valve seat (24) in the forward end (14) thereof wherein a hard insert (32) affixes to the tool body (12) within the valve seat (24). The hard insert (32) comprises an integral tip segment (34) and an integral axially rearward segment (68) joined to the tip segment by an integral mediate segment (48). A trio of generally vertically disposed flanges (52) project radially outward from the mediate segment (48). The flanges (52) are integral with the mediate portion (48). Each flange (52) presents at least one side surface (60). During operation, the substrate fragments impinge against the side surface (60) to urge the tool (10) to rotate about its central longitudinal axis.

公开(公告)号：WO1992001213A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004688

申请日：1991-07-01

Applicant: KENNAMETAL INC. ,  MOGILNICKI, Victor, D.

Inventor： KENNAMETAL INC.

IPC: G01L05/24

CPC classification number: G01L5/24 ,  Y10T29/53091

Abstract: A tightening fixture (10) for tightening a lock nut (165) on a chuck (150) including a torque readout device (240) for measuring the torque applied to tighten the lock nut. The tightening fixture includes a stationary support block (12) having a torque transmitting collar (40) rotatively mounted therein. The torque transmitting collar is designed to receive and hold the chuck so that the chuck is held nonrotatable with respect to the collar. When torque is applied to tighten the lock nut on the chuck, the chuck and collar rotate as a unit. A torque indicator (200) is mounted in the stationary block and is responsive to the rotation of the torque transmitting collar to provide an indication of the torque applied to tighten the lock nut.

公开(公告)号：WO1991014528A1

公开(公告)日：1991-10-03

申请号：PCT/US1991001674

申请日：1991-03-12

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  KOSKER, Leon, G.

IPC: B23B29/00

CPC classification number: B23B31/1071 ,  B23B29/046 ,  B23B2260/088 ,  Y10T82/2585

Abstract: In the present invention, a toolholder assembly is provided with a mechanism for adjusting the angular orientation of the toolholder (110) with respect to the longitudinal axis of the toolholder. A tool mounting sleeve (40) adapted to receive and hold a standard toolholder is rotatably mounted to a tool block (12). A shaft (154) extends from the rear of the sleeve (40) and projects from the tool block (12). A pivot arm (142) is fixedly secured at one end to the shaft (154) and is pivotally secured at its other end to an adjustment block (144). The adjustment block (144) moves linearly along an adjustment rod (146) which is fixed to the tool block (12). Means are provided for securing the adjustment block (144) at any position along the adjustment rod (146). The mounting sleeve (40), and thus the toolholder (110), can be rotated by repositioning the adjustment block (144) along the adjustment rod (146).

公开(公告)号：WO1991001202A1

公开(公告)日：1991-02-07

申请号：PCT/US1990001491

申请日：1990-03-20

Applicant: KENNAMETAL INC.

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

IPC: B25B27/14

CPC classification number: B25B27/02 ,  B25B27/28 ,  Y10T29/53943

Abstract: The present invention entails a collet tool (10) for removing a collet (12) from a circumferential retainer or nose piece (14) and for inserting that collet or another collet into a retainer or nose piece (14). Specifically, the tool includes an elongated sleeve (40) having a collet receiving section (42) formed about one end and a plunger reciprocally mounted within the opposite end of the sleeve. To remove a collet from a retainer (14), the free end of the collet is inserted into the collet receiving section (44) and the sleeve (40) is pressed onto the collet (12) causing the collet (12) to be radially compressed and released from its associated retainer (14). To then eject the collet (12) from the sleeve, the plunger (50) is moved into engagement with the collet (12) and the collet (12) is pushed from the sleeve (40). Then, with the tool being free of any collet (12), another collet may be readied for insertion into a retainer (14) by inserting the rear portion of the collet (12) into the collet receiving section (44).

公开(公告)号：WO1990014451A1

公开(公告)日：1990-11-29

申请号：PCT/US1990001755

申请日：1990-03-29

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  BAUER, Charles, Erik ,  BRYANT, William, A.

IPC: C30B29/62

CPC classification number: C30B25/005 ,  C30B29/36 ,  C30B29/38

Abstract: A chemical vapor deposition process for producing single crystal whiskers of metal carbides, nitrides, or carbonitrides is provided. The process includes flushing a reactor having a suitable growth substrate surface heated to 1120 to 1225 degrees C and flowing reactant gases past the growth substrate to form whiskers. The reactant gases comprise a metal halide and one or more of nitrogen and methane. The atomic ratio of carbon and nitrogen to metal is about 0.7:1 and 20:1, respectively. The volume ratio of hydrocarbon and nitrogen to hydrogen is about 1:37 and 1:1.6, respectively. The preferred growth substrate materials are nickel powder dispersed onto alumina oxide plates or nickel electrolytically deposited onto TiC or TiN coated aluminum oxide plates. The whiskers may be subjected to a post-growth treatment to remove the residual nickel catalyst used to grow the whiskers. The process is a two-step procedure. In the first step, the whiskers are treated at between 350 to 400 degrees C at one atmosphere pressure with 2.8 slm of HCl in 11.4 slm of argon gas for approximately one hour to convert the nickel residual catalyst to NiCl2. In the second step, the whiskers are then heated to 1000 degrees C and treated with 11.4 slm of argon for one hour to cause the NiCl2 to sublime. This results in the reduction of the residual nickel content of the whiskers from 1-2 wt % to 0.2 wt %, an order of magnitude reduction, without adversely affecting the physical properties of the whiskers.

Abstract translation: 提供了用于生产金属碳化物，氮化物或碳氮化物的单晶晶须的化学气相沉积方法。 该方法包括冲洗具有加热至1120至1225℃的合适生长衬底表面的反应器并使反应气体流过生长衬底以形成晶须。 反应物气体包括金属卤化物和氮气和甲烷中的一种或多种。 碳和氮与金属的原子比分别为约0.7：1和20：1。 烃和氮与氢的体积比分别为约1:37和1：1.6。 优选的生长衬底材料是分散在氧化铝板上的镍粉末或电解沉积到TiC或TiN涂覆的氧化铝板上的镍。 可以对晶须进行后期生长处理以除去用于生长晶须的残余镍催化剂。 这个过程是一个两步骤的过程。 在第一步骤中，将晶须在一个大气压下在350-400℃和在11.4slm氩气中的2.8slm的HCl处理约1小时，以将镍残留催化剂转化成NiCl 2。 在第二步中，将晶须加热至1000℃，用11.4slm氩气处理1小时，使NiCl 2升华。 这导致将晶须的残余镍含量从1-2重量％降低到0.2重量％，降低了数量级，而不会不利地影响晶须的物理性能。