论文部分内容阅读
拉延模的效率(最长的使用寿命),是由拉延模的成本(首次费用加上维修费用),与其能生产的合格产品数量间的比率来决定的。 拉延模的主要零件是凸模、压料圈及凹模,除了模具的机械事故损坏以外,模具损坏的绝大多数原因是自然磨损造成的(即需要更换新零件)。拉延模的磨损是由于冲模零件与坯料之间的连续摩擦所造成,实际上,除在修边时以外,凸模与坯料之间的摩擦非
The drawing die’s efficiency (longest life) is determined by the ratio of the cost of the drawing die (initial cost plus maintenance costs) to the number of eligible products it can produce. The main parts of the drawing die are punch, pressing ring and die. Except for the mechanical damage of the die, most of the damage caused by the die is caused by natural abrasion (that is, new parts need to be replaced). Draw die wear is due to the continuous friction between the die parts and blanks caused by, in fact, except when trimming, the punch and the friction between the blanks