| 摘要 |
A metal expanding machine for expanding of a workpiece of metal having rows of overlapping slots, the machine having workpiece tool supports thereon each carrying tools for securing a workpiece, and at least one of the tool supports being controlled by fluid actuated cylinders and so arranged that it is driven away from the other by means of the cylinders but at the end of its outward movement the cylinders are reversed to move a tool support back by an amount sufficient to relax the workpiece so that it can be readily removed from the tools. |
