Grinding wheel, grinding rim for a grinding tool, and method of

Details Grinding wheel, grinding rim for a grinding tool, and method of Grinding wheel, grinding rim for a grinding tool, and method of

1994-09-30

1997-07-29

Morgan, Eileen

Abrading

Rigid tool

Rotary cylinder

451540, 451544, 51295, 51298, 51300, B24D 300

Patent

active

056517297

ABSTRACT:
A grinding wheel for a grinding tool, includes a grinding wheel core; and a grinding rim which is provided on the grinding wheel core and which is composed of a plurality of grinding micro segments composed of a crushed agglomerate including at least one material selected from the group consisting of metal-bonding or ceramic-bonding materials, and at least one grit material selected from the group consisting of diamond and cubic crystalline borium nitride (CBN), which agglomerate has been one of hot-pressed or sintered without pressure after which the agglomerate has been crushed to provide the crushed agglomerate; and a resin binder for bonding the grinding micro segments together and to the grinding wheel core. A method of manufacturing a grinding tool composed of a core and a grinding rim provided on the core, includes (a) providing a core; (b) providing a material composed of at least one material selected from the group consisting of metal-bonding or ceramic-bonding materials, and at least one grit material selected from the group consisting of diamond and cubic crystalline borium nitride (CBN); (c) providing an agglomerate of the material by one of hot-pressing or sintering without pressure; (d) crushing the agglomerate to provide a plurality of grinding micro segments composed of crushed agglomerate; and (e) bonding the plurality of grinding micro segments together and to the core using a resin binder.

REFERENCES:
patent: 4770907 (1988-09-01), Kimura
patent: 5185012 (1993-02-01), Kelly
DE Beers Ind. Diamond, ZA 7 807 071, Jan. 3, 1980, Database WPI, Section CH, Week 8021, Derwent Pub. Ltd., abstract.
Noritake Dia. K.K., JP 01 183 370, Jul. 21, 1989, Patent Abstracts of Japan, vol. 13, No. 469, Oct. 24, 1989. Abstract.
Matsushita Electric Ind. Co., JP 6 015 572, Jan. 25, 1994, Patent Abstracts of Japan, vol. 18, No. 217, Apr. 19, 1994, Abs.

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