Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1977-06-10
1979-02-06
Hunt, Brooks H.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75205, 75226, C22C 2900
Patent
active
041382528
ABSTRACT:
The invention relates to a compact containing crystals of cubic boron nitride and a binder containing at least one of the intermetallic compounds selected from the group consisting of Ti.sub.2 Cu, Ti, Cu, Ti.sub.2 Cu.sub.3, TiCu.sub.3, Zr.sub.2 Cu, ZrCu, Zr.sub.2 Cu.sub.3, and ZrCu.sub.3. A method for the production of this compact comprises the steps of forming a composition including crystals of cubic boron nitride and a binder containing at least one of the intermetallic compounds selected from the group consisting of Ti.sub.2 Cu, TiCu, Ti.sub.2 Cu.sub.3, TiCu.sub.3, Zr.sub.2 Cu, ZrCu, Zr.sub.2 Cu.sub.3, and ZrCu.sub.3, and subjecting the obtained composition of cubic boron nitride and the binder to a pressure within the range of 10 to 50 kilobars and a temperature within the range of 1,000.degree. C. to 1,400.degree. C. The advantage of the present invention consists in providing a simple method for the production of the compact which possesses retained strength and cutting properties. The compact of the invention may be most advantageously used for making cutting and grinding tools intended for machining iron-, nickel-, and cobalt-base steels and alloys.
REFERENCES:
patent: 2888738 (1959-06-01), Taylor
patent: 3047938 (1962-08-01), Dega
patent: 3574579 (1971-04-01), Clarke
Zhivov et al. Porosh Met. (USSR) No. 1 Jan. 1970.
Dmitriev Mikhail E.
Gankevich Tamara T.
Modenov Vitaly P.
Semerchian Aik A.
Vereschagin Leonid F.
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