TRUING MEMBER FOR ABRASIVE PAD AND TRUING METHOD OF ABRASIVE PAD

摘要

A truing member capable of truing an abrasive pad composed by sticking a plurality of sheets of small abrasive pad efficiently and effectively, and a truing method of an abrasive pad. The truing member has a rectangular base place, and an abrasive grain securing portion formed by electrodepositing diamond abrasive grains is formed on the diagonal of the base plate such that it becomes thinner toward the center of the base plate. When the truing member is presses against the abrasive pad while they are rotated relatively and revolved, contact time of the abrasive pad with the abrasive grain securing portion becomes equal over the entire surface of the abrasive pad and thereby the entire surface of the abrasive pad can be ground uniformly.