Manufacture of an abrasive body

Details Manufacture of an abrasive body Manufacture of an abrasive body

1990-07-06

1992-04-21

Dixon, Jr., William R.

Abrasive tool making process, material, or composition

Miscellaneous

51295, 51309, B24D 300

Patent

active

051063913

ABSTRACT:
A method of producing an abrasive body which consists of an abrasive compact sandwiched between layers of cemented carbide. The method includes the steps of providing an unbonded structure comprising a layer of ultra-hard abrasive particles sandwiched between two carbide layers. Each carbide layer is a layer of cemented carbide or a layer containing the components necessary to produce cemented carbide. The two carbide layers and the sandwiched layer each contain a binder metal selected from cobalt, nickel, iron and the like. The concentration of binder metal in the sandwiched layer is less than the concentration of the binder metal in one of the carbide layers, and is higher than the concentration in the binder metal in the other carbide layer. The unbonded structure is subjected to conditions of elevated temperature suitable to produce the abrasive body.

REFERENCES:
patent: 4219339 (1980-08-01), Wilson
patent: 4496372 (1985-01-01), Almond et al.
patent: 4525178 (1985-06-01), Hall
patent: 4604106 (1986-08-01), Hall et al.
patent: 4690691 (1987-09-01), Komanduri
patent: 4959929 (1990-10-01), Burnaud et al.
patent: 5009693 (1991-04-01), Cho
patent: 5032147 (1991-07-01), Frushour

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