Abstract: In an apparatus for polishing a workpiece, by rotating the workpiece while pressing a press member against a back surface of a polishing tape and thereby pressing the polishing tape against the workpiece, a cartridge 72 which holds the press member 96 is provided, for improving the ability of the press member to follow the workpiece, with a rollable-type holding device 260 which holds the press member 96 such that the press member 96 is rollable about a rolling axis line LS which perpendicularly crosses, in a three-dimensional space, over a rotational axis line about which the workpiece 10 is rotated. During the polishing of the workpiece, the press member 96 is rolled relative to the cartridge 72, so that the press member 96 follows the workpiece 10.

Abstract: An apparatus for abrasive machining of a predetermined portion of a workpiece such that an abrasive tape and the workpiece are moved relative to each other while the tape is held in pressing contact with the predetermined portion of the workpiece, and such that the abrasive tape is fed in the longitudinal direction, the apparatus including a tape holding portion, and a tape cartridge removably held by the tape holding portion and carrying the abrasive tape, wherein the cartridge includes a housing, a tape supply portion disposed in the housing and accommodating an unused length of the tape such that a portion of the unused length is exposed outside the housing, a pressing member attached to the housing, for pressing the portion of the unused length outside the housing onto the predetermined portion of said workpiece, and a take-up portion disposed in the housing and accommodating a used length of the tape which has been used for abrasive machining of the predetermined portion of the workpiece in pressing cont

Abstract: A lapping apparatus for improving the durability of a lap film and the reliability of a lapping apparatus. A shoe having a recessed workpiece retaining section is installed on each of the opposed faces of a pair of clamp arms. A deep groove is formed in the center of the workpiece retaining section. Guide plates are fixed to the shoe so as to block both sides of the deep groove. A drawing roller is disposed in the deep groove and the rotation shaft of the drawing roller is supported by the guide plates. A lap film is introduced to the workpiece retaining sections of the shoes, drawn into the deep grooves in the center of the workpiece retaining sections, and hung around the drawing rollers. Even when the lap film is being fed, the lap film feeding path remains unchanged. Thus, there is no need to clamp the workpiece with a high pressure to bring the lap film into close contact with the face of the workpiece to be processed.