Abrasive tool having film-covered CBN grits bonded by brazing to

Details Abrasive tool having film-covered CBN grits bonded by brazing to Abrasive tool having film-covered CBN grits bonded by brazing to

1993-11-17

1995-02-14

Bell, Mark L.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51307, B24D 300

Patent

active

053891180

ABSTRACT:
The invention concerns in one aspect a CBN abrasive tool comprising a metal, ceramic or cemented carbide substrate and a single layer of CBN grits bonded to said substrate by a brazing alloy, characterized in that the surface chemistry of said CBN grits is modified by depositing thereon a film of silicon carbide. The invention also concerns, in another aspect, a method of manufacturing a CBN abrasive tool comprising the steps of providing a metal, ceramic or cemented carbide substrate; providing a plurality of CBN grits; depositing a film of silicon carbide on said CBN grits; and, bonding the carbide film-coated CBN grits to said substrate by a brazing alloy.

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