The invention provides a method of making an abrasive product, e.g. a grinding wheel rim, which consists in providing a mixture of needle-shaped abrasive particles and the starter ingredients for a bonding matrix, causing the mixture to flow, preferably in a passage having a constriction, so causing...http://www.google.com.au/patents/US4203732?utm_source=gb-gplus-sharePatent US4203732 - Method of making an abrasive product
