Diamond or cubic boron nitride grinding wheel with resin core

Details Diamond or cubic boron nitride grinding wheel with resin core Diamond or cubic boron nitride grinding wheel with resin core

1975-12-24

1977-08-16

Arnold, Donald J.

Abrasive tool making process, material, or composition

With synthetic resin

51309R, C09K 314

Patent

active

040423468

ABSTRACT:
A diamond or cubic boron nitride grinding wheel in which an abrasive section comprising abrasive grits distributed through and held by a phenolic resin matrix is bonded to a non-abrasive core, is improved, in terms of ease of manufacture and elimination of cracking or poor adhesion, by means of a core composition which includes between 5 and 20% by volume of a thermoset resin selected from the group consisting of phenol aldehyde, urea formaldehyde, and melamine formaldehyde resins, particulate metal and graphite, and the remainder being a resin selected from the group consisting of epoxy resins, addition polymers of unsaturated polyesters, and thermosetting polyimide resins, in the range of from 5 to 80% by volume of the core.

REFERENCES:
patent: 3385684 (1968-05-01), Voter
patent: 3471276 (1969-10-01), Bragaw
patent: 3664819 (1972-05-01), Siqui et al.
patent: 3779727 (1973-12-01), Siqui et al.
patent: 3868233 (1975-02-01), Carver et al.
patent: 3899307 (1975-08-01), Thompson
patent: 3925035 (1975-12-01), Keat

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