Diamond tool and method of producing the same

Details Diamond tool and method of producing the same Diamond tool and method of producing the same

1991-10-07

1993-05-11

Bishop, Steven C.

Cutters, for shaping

Comprising tool of specific chemical composition

51308, 408145, 501 90, B23B 2720

Patent

active

052096130

ABSTRACT:
A diamond tool which generates little vibrations, can be used in high temperature environments and can be produced with excellent yield has at least a shank portion (2) in contact with a diamond chip (1) and formed from a reaction-sintered silicon carbide material having a thermal expansion coefficient close to that of the diamond chip by using a diamond granule, and a method for producing the diamond tool which comprises contacting a diamond chip with an ingredient layer mixed with a diamond granule and a carbonaceous source, placing a metallic silicon powder on the surface of the layer, and then reaction-sintering it in vacuum or in a non-oxidizing atmosphere by heating, thereby forming a reaction-sintered silicon carbide material having a coefficient of thermal expansion close to that of a diamond chip, at least, in the shank portion at which a diamond chip is in contact.

REFERENCES:
patent: 4241135 (1980-12-01), Lee et al.
patent: 4504284 (1985-03-01), Ohno
patent: 4789385 (1988-12-01), Dyer et al.
patent: 5011515 (1991-04-01), Frushour

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