RESIN BONDED GRINDING WHEEL

摘要

PROBLEM TO BE SOLVED: To increase the strength of a resin binder phase and bending strength. SOLUTION: A roughly spherical phenol formaldehyde resin phase 5 with grain size of 5 to 50μm is dispersively arranged in the resin binder phase 3 consisting of phenol resin in addition to ultra abrasive grain 4, and the abrasive grain layer 2 of a resin bonded grinding wheel 1 is manufactured. The phenol formaldehyde resin plays a part as a reinforced phase because of high bending strength.