Lapping plate resurfacing abrasive member and method

摘要

A lapping machine includes a lapping plate, and a workpiece carrier with a workpiece-holding hole disposed on the plate, a workpiece being fitted within the hole in the carrier. The workpiece is lapped while the plate and the carrier are individually rotated and loose abrasive grains are fed onto the plate. A synthetic resin-based elastic abrasive member having a Rockwell hardness (HRS) in the range of -30 to -100 is effective for resurfacing the lapping plate.