It is pointed that application and dissemination's key factor of piston pin's cold extruding technique in China is that working life of piston pin's cold extruding punch is too low.
明确指出妨碍活塞销冷挤压技术在国内推广应用的关键因素是其冷挤压凸模的寿命太短。
To low drawing in flange part, the blank holder can be used as punch, and the effect is good.
对于凸缘部位的浅拉深，采用压边圈兼作浅拉深凸模的作用，取得较好的效果。
Thirty years ago low-paid, blue-collar workers were more likely to punch in a long day than their professional counterparts.
30年前，低收入的蓝领工人们长时间工作的可能比其他领域的人要大。
This rapid prototyping method, preparation of punch is simple, easy to change, shape, high efficiency, low cost, suitable for large-scale production.
这种快速成型方法，凸模制备简单，更换方便，成型效率高，成本低，适于规模化生产。
Shear punch tests performed using a new low compliance test fixture.
冲压剪切试验进行使用的一致性测试夹具。
Shear punch tests performed using a new low compliance test fixture.
冲压剪切试验进行使用的一致性测试夹具。
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