Process for evening out the amount of material removed from disc

Details Process for evening out the amount of material removed from disc Process for evening out the amount of material removed from disc

1979-02-23

1981-06-02

Smith, Gary L.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51281SF, 511314, 51266, B24B 722

Patent

active

042703166

ABSTRACT:
In conventional polishing machines, uneven transmission of pressure causes ifferent degrees of abrasion of the polished discs which results in different thicknesses over one disc and also with respect to other discs in one polishing batch. This problem is solved according to the invention by the provision of soft elastic inserts between the pressure piston and the back of the carrier plate on which the discs to be polished are cemented.

REFERENCES:
patent: 3449870 (1969-06-01), Jensen
patent: 3603042 (1971-09-01), Boettcher
patent: 3631634 (1972-01-01), Weber
patent: 3754359 (1973-08-01), Scandalestos
patent: 4020600 (1977-05-01), Day
patent: 4132037 (1979-01-01), Bonora

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