Abrasive member and method for the resurfacing of a lapping plate

摘要

A lapping machine includes a lapping plate (1), and a workpiece carrier (4) with a workpiece-holding hole (5) disposed on the plate (1), a workpiece (6) being fitted within the hole in the carrier. The workpiece (6) is lapped while the plate and the carrier are individually rotated and loose abrasive grains (7) are fed onto the plate. A synthetic resin-based elastic abrasive member (10) having a Rockwell hardness (HRS) in the range of -30 to -100 is effective for resurfacing the lapping plate (1).