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Title: Vitreous bonded cubic boron nitride abrasive articles

Abstract: A vitreous bonded cubic boron nitride grinding wheel is provided which optionally contains silicon carbide or other abrasive having a coefficient of thermal expansion substantially the same as the coefficient of thermal expansion of cubic boron nitride, and wherein the vitreous bond, having a coefficient of thermal expansion substantially the same as the coefficient of thermal expansion of cubic boron nitride, is substantially non-reactive with cubic boron nitride and the optional abrasive.


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Inventors: Balson, Peter Charles (Goshen, OH, US)

Application Number: 565518
Filing Date: 1975-04-07
Publication_date: 1976-10-19
Assignee: Cincinnati Millacron, Inc. (Cincinnati, OH)
Primary Class(es): 51/308 51/295, 51/307
Other Classes:
US Patent Ref:
3528789Sep, 1970Mathewson et al.51/307.
3554717Jan, 1971Shaffer et al.51/309.
3576610Apr, 1971Mathewson51/308.
3743489Jul, 1973Wentor, Jr. et al.51/308.
3852049Dec, 1974Hibbs et al.51/308.

Other Refs: 1,296,589
Nov, 1972UK

Primary Examiner: Arnold, Donald J.
Assistant Examiner:
Attorney: Dunn; Donald