Hard sintered body tool

Details Hard sintered body tool Hard sintered body tool

1999-02-26

2000-12-05

Tsa, Henry W. H.

Cutters, for shaping

Comprising cutting edge bonded to tool shank

407119, 428698, B26D 300, B23B 2714

Patent

active

061557552

ABSTRACT:
A tool manufactured by brazing a hard sintered body such as a diamond or cBN to a tool substrate through a bonding layer comprising at least one of Ti and Zr by 15-65 wt % and Cu. Two ridges of the tool substrate on both sides each has a first ridge adjacent to and aligned with a ridge of the hard sintered body and a second ridge provided nearer to an inscribed circle of the tool than is the ridge of the hard sintered body. Also, an upright side face and a bottom of each seating groove formed in the tool substrate intersect each other at an angle smaller than the intersecting angle between a back side and a bottom of each hard sintered body.

REFERENCES:
patent: 3548473 (1970-12-01), Stein
patent: 3660877 (1972-05-01), Stein
patent: 4117968 (1978-10-01), Naidich et al.
patent: 5366522 (1994-11-01), Nakamura et al.
"Investigation of contact phenomena at cubic boron nitride-filler metal interface during electron beam brazing", I.L. Pobol et al., Diamond and Related Materials, vol. 6, No. 8, May 1, 1997, pp. 1067-1070.

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