公开(公告)号：EP0996807B1

公开(公告)日：2002-01-30

申请号：EP98932742.4

申请日：1998-06-22

Applicant: KENNAMETAL INC.

Inventor： MASSA, Ted, R. ,  MONTGOMERY, Robert, H., Jr. ,  LOSCH, William, P. ,  SIDDLE, David, R.

IPC: E21B10/46

CPC classification number: E21B10/42 ,  E21B10/58 ,  Y10T407/1922

Abstract: A cutting bit has a bit body (180) which has a forward end (182) and a rearward end (216). The bit body (181) contains a seat at the forward end (182) thereof. The bit body (181) contains a bore intersecting the seat wherein a bore wall defines the bore. A cutting insert (196) is received by the seat wherein the cutting insert presents a side surface (198) facing the bore. A wedge (206) has a generally longitudinal seating surface. The wedge (206) has a support surface opposite to the longitudinal seating surface. The wedge (206) is received within the bore so that the longitudinal seating surface of the wedge (206) contacts the side surface (198) of the cutting insert (196) and for at least a portion of the length of the wedge (206) the entire support surface contacts the bore wall so as to frictionally retain the cutting insert (196) in the seat.

公开(公告)号：EP0842349B1

公开(公告)日：2000-03-08

申请号：EP96925412.7

申请日：1996-07-19

Applicant: KENNAMETAL INC.

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

IPC: E21C35/193 ,  E21C35/19

CPC classification number: E21C35/19 ,  E21C35/1933 ,  E21C2035/191

Abstract: An excavation cutting tool holder retention system. The cutting tool holder retention system includes a cutting tool holder having a holder engagement surface and a support block having a tool holder bore into which the cutting tool holder is inserted. A pin having a pin engagement surface is movably mounted to the support block such that the pin engagement surface may be moved to engage the holder engagement surface. At least one of the holder and pin engagement surfaces defines an inclined surface such that when the pin engagement surface is moved to engage the holder engagement surface, the shank portion of the cutting tool holder will be drawn into the tool holder bore. In the preferred embodiment, at least one of the shank portion of the cutting tool holder and tool holder bore is tapered such that the shank portion of the cutting tool holder will be drawn and wedged into the tool holder bore of the support block when the pin engagement surface is moved to engage the holder engagement surface.

公开(公告)号：EP0706433A1

公开(公告)日：1996-04-17

申请号：EP94916024.0

申请日：1994-05-06

Applicant: KENNAMETAL INC.

Inventor： VANKIRK, John, S. ,  MASSA, Ted, R. ,  HAMERSKI, Ronald, E.

IPC: B23B27

CPC classification number: B23B27/145 ,  B23B2200/201

Abstract: A cutting insert (120, 140, 210, 610, 510) is disclosed in which at least one corner portion of the insert has a penetrating segment (100, 400, 200, 500, 600) of a given radius for penetrating a workpiece and an adjacent finishing segment (105, 405, 205, 505, 605) having a greater radius or greater radii which follows the penetrating segment to improve the surface roughness of the workpiece.

公开(公告)号：EP1755811B1

公开(公告)日：2012-04-25

申请号：EP05705907.3

申请日：2005-01-14

Applicant: Kennametal, Inc.

Inventor： MASSA, Ted, R. ,  ERICKSON, Robert, A. ,  SIDDLE, David, R.

IPC: B23B31/00

CPC classification number: B23B31/006 ,  B23B2231/0272 ,  B23B2231/22 ,  Y10T408/957 ,  Y10T409/30952

Abstract: A rotary tool holder (20) includes a shank (58) having a flange (66), a tapered outer surface (64), and front and rear contact portions (60). The tapered outer surface (64) corresponds to the tapered bore of a spindle, and flexible circular cantilevers (70, 103) are provided at one or both contact portions such that a free end (76, 105) of the cantilevers expands radially due to centrifugal force to maintain contact with the tapered bore (53). The shank (58) can be formed from an inner member (113) and a sleeve (115) disposed thereover, in which portions of the sleeve (115) form the circular cantilevers. The circular cantilevers (256) can also be formed by a cavity (260) created in the shank (253). Alternatively, instead of circular cantilevers (256), the shank of the tool holder can have a taper which is optimized for a certain speed, wherein the taper of the shank (403) has a first taper at rest and a different taper (Φ2) at a desired speed.

公开(公告)号：EP2134489A1

公开(公告)日：2009-12-23

申请号：EP08744232.3

申请日：2008-03-24

Applicant: Kennametal Inc.

Inventor： HYATT, Gregory, A. ,  SOUTH, Adam ,  FROTA DE SOUZA, Ruy ,  BROWN, Paul ,  ANDRAS, Linn ,  MASSA, Ted, R.

IPC: B23B27/04

CPC classification number: B23B1/00 ,  B23B27/12 ,  B23B27/1603 ,  B23B31/4006 ,  B23B2200/0438 ,  B23B2200/0461 ,  B23B2200/081 ,  B23B2200/161 ,  B23B2200/204 ,  B23B2205/12 ,  B23B2260/042 ,  B23B2265/16 ,  Y10T82/2529 ,  Y10T407/23 ,  Y10T407/235

Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. A method, including an assembly with a rotatable insert mounted to a toolholder may be utilized to achieve this result.

公开(公告)号：EP1178873B1

公开(公告)日：2003-08-06

申请号：EP00932438.5

申请日：2000-05-15

Applicant: Kennametal Inc.

Inventor： MASSA, Ted, R. ,  PRIZZI, John, J. ,  SIDDLE, David, R.

IPC: B24C5/04

CPC classification number: B24C5/04 ,  Y10T29/49826 ,  Y10T29/49865 ,  Y10T428/139

Abstract: The invention relates to abrasive water jet systems comprising an abrasive water jet mixing tube (30, 90, 166, 200) having a longitudinal bore (36, 238, 254) lined with a superhard material (44, 50, 60, 92, 94, 96, 97, 208-224, 230), including such systems which use cubic boron carbide (CBN), diamond, or other materials with a hardness greater than that of alumina as the abrasive material. The invention also comprises methods of using an AWJ system having a mixing tube having a longitudinal bore lined with a superhard material. Some embodiments include AWJ mixing tubes comprised of a plurality of connected components. Such connections may be disconnectable.

公开(公告)号：EP1178873A1

公开(公告)日：2002-02-13

申请号：EP00932438.5

申请日：2000-05-15

Applicant: Kennametal Inc.

Inventor： MASSA, Ted, R. ,  PRIZZI, John, J. ,  SIDDLE, David, R.

IPC: B24C5/04

CPC classification number: B24C5/04 ,  Y10T29/49826 ,  Y10T29/49865 ,  Y10T428/139

Abstract: The invention relates to abrasive water jet systems comprising an abrasive water jet mixing tube (30, 90, 166, 200) having a longitudinal bore (36, 238, 254) lined with a superhard material (44, 50, 60, 92, 94, 96, 97, 208-224, 230), including such systems which use cubic boron carbide (CBN), diamond, or other materials with a hardness greater than that of alumina as the abrasive material. The invention also comprises methods of using an AWJ system having a mixing tube having a longitudinal bore lined with a superhard material. Some embodiments include AWJ mixing tubes comprised of a plurality of connected components. Such connections may be disconnectable.

公开(公告)号：EP0897457B1

公开(公告)日：2000-12-13

申请号：EP97906465.6

申请日：1997-02-11

Applicant: KENNAMETAL INC.

Inventor： MASSA, Ted, R. ,  MONTGOMERY, Robert, H., Jr.

IPC: E21C35/197

CPC classification number: E21C35/197

Abstract: A cutting tool retention system for retaining a cutting tool having a tool recess. The cutting tool retention system comprises a support block having a block bore and a block recess intersecting the block bore and a clip movably situated in the block recess, the clip having a spring structure which engages the support block and urges the clip into an engaging relationship with the tool recess of the cutting tool situated within the block bore, the spring structure allowing the clip to be disengaged from an engaging relationship with the tool recess of the cutting tool situated within the block bore by applying force directly to the clip so as to overcome the urging of the spring structure.

公开(公告)号：EP0830229A1

公开(公告)日：1998-03-25

申请号：EP96907186.0

申请日：1996-03-06

Applicant: KENNAMETAL INC.

Inventor： SIDDLE, David, R. ,  MASSA, Ted, R. ,  VAN KIRK, John, S. ,  MALOTT, Kenneth, M.

IPC: B23C5

CPC classification number: B23C5/2462 ,  B23C5/241 ,  B23C2250/08 ,  Y10T407/1912 ,  Y10T407/192 ,  Y10T407/1928 ,  Y10T407/1946

Abstract: A cartride-type milling cutter (1) is provided having a cartridge mounting mechanism (13) that resists the centrifugal load applied to the cartridges at high rotational speeds. The milling cutter includes a generally cylindrical cutter body (3), at least one replaceable tool cartridge (11) having a trailing face (21) and a leading face (19) having a cutting insert (31) for cutting a workpiece, and a mounting mechanism for detachably securing the tool cartridge (11) onto the cutter body (3). The mounting mechanism (13) includes a recess (40) in the cutter body (3) for receiving the cartridge (11) that includes a radially canted wall for providing dovetail-type resistance to radial movement of the cartridge (11) and at least one compressively loaded set screw (50) in the cutter body (3) for compressively engaging the leading face of the cartridge in order to seat and retain it within the recess (40). During the operation of the cutter, the centrifugal load is substantially borne by the combination of the radially canted wall and the set screw (50). The mounting mechanism preferably also includes a screw (64) optionally radially-oriented, that passes through a through bore (62) in the sides of the tool cartridge (11) for providing additional insurance against the loosening or breaking away of the cartridge (11) during high speed operation.

Abstract translation: 提供一种卡盘式铣刀（1），该卡盘式铣刀（1）具有卡盘安装机构（13），所述卡盘安装机构抵抗以高转速施加到所述卡盘的离心负载。 该铣刀包括大致圆柱形的刀体（3），具有后表面（21）和具有用于切割工件的切削刀片（31）的前表面（19）的至少一个可更换刀夹头（11），以及 （11）可拆卸地固定在刀体（3）上的安装机构。 所述安装机构（13）包括位于所述刀体（3）中的用于容纳所述盒（11）的凹部（40），所述凹部包括用于对所述盒（11）的径向运动提供燕尾形阻力的径向倾斜壁，并且至少 在刀体（3）中有一个压缩加载的定位螺钉（50），用于压缩啮合刀片架的前导面，以便将其定位并保持在凹槽（40）内。 在切割器的操作过程中，离心负载基本上由径向倾斜壁和定位螺钉（50）的组合承担。 安装机构优选地还包括任选地径向定向的螺钉（64），其穿过工具筒（11）的侧部中的通孔（62），用于提供额外的保险以防止筒（11）的松动或脱离 ）在高速运行期间。

公开(公告)号：EP0549722B1

公开(公告)日：1996-05-08

申请号：EP91918963.9

申请日：1991-08-19

Applicant: KENNAMETAL INC.

Inventor： MASSA, Ted, R.

IPC: B23B31/40 ,  B23B31/30 ,  B23Q3/08

CPC classification number: B23Q3/086 ,  B23B31/305 ,  Y10T279/10 ,  Y10T279/1029 ,  Y10T403/479 ,  Y10T408/953 ,  Y10T409/30952

Abstract: An expandable holding device for holding a component (115) in which the clamping force is brought about by the solidification and expansion of a fusible alloy (132). The alloy (132) is contained in an expansion chamber (130) defined in part by a thin-walled, expansion sleeve (122). The alloy (132) has a low melting point and expands when it solidifies. The pressure caused by expansion of the fusible alloy radially expands the expansion sleeve (122) causing the expansion sleeve to grip the component (115). To release the component, the alloy (132) is heated and liquified so that the expansion sleeve (122) returns to an unexpanded condition.