| 摘要 |
<p>A workpiece (2) is frozen fast to a workpiece holder (5, 6) of a driving member (4) or the like for driving the workpiece (2) in a state in which the workpiece (2) can be worked. The workpiece (2) is held in position by freezing water between the workpiece (2) and the workpiece holder (5, 6). Methyl alchol, liquid nitrogen, liquid oxygen, or the like may be used in place of water. By preforming the surface of the workpiece (2) to be held to conform to the support surface of the workpiece holder (5, 6) machining accuracy for the workpiece (2) can be further improved. </p> |
