Abrasive grain and method for producing it, polishing tool...

Details Abrasive grain and method for producing it, polishing tool... Abrasive grain and method for producing it, polishing tool...

2006-11-28

2006-11-28

Marcheschi, Michael (Department: 1755)

Abrasive tool making process, material, or composition

With inorganic material

C051S308000, C051S309000

Reexamination Certificate

active

07141086

ABSTRACT:
An abrasive grain including a porous particle material in which a large number of fine particles for cutting edges form gaps partly among them and bond loosely each other. The particles for the cutting edges are produced by growing primary particles in secondary particles, which are formed by cohesion of a large number of primary particles, with a heat treatment at a temperature of forming necks at bonding points among the primary particles.

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U.S. Appl. No. 10/452,380, filed Jun. 3, 2003, Endoh et al.
U.S. Appl. No. 11/331,166, filed Jan. 13, 2006, Zhang.

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