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：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：EP0467922B1

公开(公告)日：1996-01-10

申请号：EP90905794.5

申请日：1990-03-20

Applicant: KENNAMETAL INC.

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

IPC: B23B31/00

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).