标准冲头种类很多,也是容易制做的简单零件。因为其变化多样,所以,通常的情况很可能是将购回的冲头原封不动地直接使用。但在具有许多金属模具的企业中,为维修零件而库存大量特定形状的冲头会增加很多负担,为此,可采用库存毛坯和半精加工的冲头,并对其进行相应的 Many types of standard punches, but also easy to make simple parts. Because of its diversity, it is usually the case that the purchased back-up punch is used as is. However, in enterprises with many metal molds, it is a burden to stock a large number of special-shaped punches for the maintenance of parts. For this purpose, stock blanks and semi-finished punches can be used and correspondingly