CHUCK FOR MOUNTING WORKPIECE

摘要

The present invention relates to a chuck for mounting a workpiece, comprising: a chuck body; and a base jaw provided on the chuck body, wherein the chuck body relates to the chuck for mounting the workpiece composed of an aluminum alloy material, and the lightweight chuck can be formed by composing the chuck body out of the aluminum alloy material having a lower specific gravity than alloy steel and carbon steel for a mechanical structure.