由于高压开关用触指的表面粗糙度要求比较低，用普通冲压模具加工是很难达到精度要求的。
Owing to low requirement of the roughness of button contact used by high voltage switch, it's hard to get to the precision requirement with common processing of punching die.
因此，研究开发钢基冲压模具的快速制作技术方法是材料成型与加工领域的一个重要课题。
Therefore, the research of the fast manufacture technology method that develops the steel - based ramming mold is an important topic in the Material Forming and Process Engineering field.
冲压是车身的主要加工方法，汽车冲压模具的设计及冲压工艺直接关系车身表面的质量，本文主要针对车身模具设计及冲压工艺进行了综述。
Stamping is the main process for body, the design and technique of stamping die concern on body surface quality directly. This paper is emphasis on body die design and stamping process.
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