Grinding wheel and hub and method of forming the same

Details Grinding wheel and hub and method of forming the same Grinding wheel and hub and method of forming the same

1976-01-05

1977-07-12

Arnold, Donald J.

Abrasive tool making process, material, or composition

Pore forming

51298A, 51308, 51309R, C08J 514

Patent

active

040351610

ABSTRACT:
An abrasive body is formed with a center bore therethrough. A molding ring is placed within the center bore to define an annular space. A foamed plastic such as polyurethane is supplied to the space and when the foamed plastic sets there results a rigid and dense hub for the abrasive body. A portion of the plastic foams into the inner wall of the abrasive body.

REFERENCES:
patent: 3364630 (1968-01-01), Rusk et al.
patent: 3529945 (1970-09-01), Charvat
patent: 3800483 (1974-04-01), Sherman
patent: 3960516 (1976-06-01), Biardi

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