Norton Company

Suresh S Vagarali

Kesh S Narayanan

Brian E Swanson

A combination of fused alumina grits with sintered gel alumina abrasive grits is shown to be more effective than either abrasive alone in cutting steel bars with bonded abrasive wheels at intermediate cutting speeds.

Grinding wheel with combination of fused and sintered abrasive grits

This invention relates to organically bonded abrasive articles that include grinding aids. It has been determined that when known grinding aids such as alkali metal sulphates and alkali metal chlorides are cofused in about eutectic proportions and added to thermoset resin bonded abrasive articles in the form of finely crushed particles having an approximate eutectic composition that an improved abrasive article results.

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Shrewsbury, MA, United States of America

Suresh S Vagarali