公开(公告)号：WO1990001107A1

公开(公告)日：1990-02-08

申请号：PCT/US1989003057

申请日：1989-07-13

Applicant: KENNAMETAL INC.

Inventor： KENNAMETAL INC. ,  STIFFLER, Stephen, P.

IPC: E21C35/18

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

Abstract: A cemented carbide tip (3) for a cutter bit (1) is rotationally symmetric about its longitudinal axis (x-x) and has a socket (23) in its rear end for brazing to a steel protrusion (17) on a steel tool 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) thereon 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：WO1988005360A1

公开(公告)日：1988-07-28

申请号：PCT/US1987002977

申请日：1987-11-13

Applicant: KENNAMETAL INC. ,  KRUPP WIDIA GMBH

Inventor： KENNAMETAL INC. ,  KRUPP WIDIA GMBH ,  ERICKSON, Robert, A. ,  VON HAAS, Rainer ,  REITER, Norbert ,  TACK, Hans, Wilhelm ,  HEATON, James, W.

IPC: B23B31/12

CPC classification number: B23B31/263 ,  B23B29/046 ,  Y10T82/2589 ,  Y10T279/17752 ,  Y10T408/95 ,  Y10T409/30952

Abstract: An improved toolholder (10) for releasably mounting on a tool support member (34). The toolholder is provided with a forward end for receiving a tool and a shank (14) extending from the forward end for being releasably received in a bore of a tool support member. The shank has a first section (19) for interference fitting with the bore of the tool support member when a rearwardly facing face (16) on the toolholder is in abutment with a forwardly facing surface (54) on the tool support member. The shank has a second section (21), rearwardly of its first section, for expansible abutment with the bore of the tool support member.

Abstract translation: 一种用于可释放地安装在工具支撑构件（34）上的改进的刀架（10）。 刀架设置有用于接收工具的前端和从前端延伸的柄（14），用于可释放地容纳在工具支撑构件的孔中。 柄部具有第一部分（19），用于当工具夹具上的面向后的面（16）与工具支撑构件上面向前的表面（54）邻接时与工具支撑构件的孔干涉。 柄部具有在其第一部分的后方的第二部分（21），用于与工具支撑部件的孔的可膨胀的邻接。