Porous ultrafine grinder

Abrasive tool making process – material – or composition – With inorganic material

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Details

51309, B24D 310, B24D 500

Patent

active

057187363

ABSTRACT:
The present invention provides a porous ultrafine grinder including ultrafine abrasive grains of diamond or cubic boron nitride having an average grain size of 60 .mu.m or less, and a binder which can form a fused phase by fusion with the ultrafine abrasive grains under heating. The binder is a porous material having continuous pores, and the fused phase formed in the interface of the binder and the ultrafine abrasive grains has a thickness of 1.5 .mu.m or less.

REFERENCES:
patent: 4738689 (1988-04-01), Gigi et al.
patent: 4951427 (1990-08-01), St. Pierre
patent: 4977710 (1990-12-01), Une
patent: 5011510 (1991-04-01), Hayakawa et al.
patent: 5385591 (1995-01-01), Ramanath et al.
patent: 5637123 (1997-06-01), Ishizaki et al.

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