| 摘要 |
A die for use with a conventional punch to mechanically join, or clinch, two or more sheets of metal or other suitably formable material. The die is specially formed with a cavity having one or more lateral passages extending from the periphery of the cavity. When the sheets are positioned against the die and impacted by a suitable punch, the lateral passages permit the lateral extrusion of a quantity of sheet material which serves to mechanically interlock the sheets. The die has no moving parts itself, providing an economical design which is adaptable to various types of presses and applications. Moreover, the lateral passages can accommodate sheet material of various thicknesses and yet create a sufficient clinching effect without the need to closely calibrate the punch or press used with the die. |
