辊锻过程中金属变形及流动，与一般模锻工艺相比存在较大的差异，因而其工艺设计及初成形道次模具、整形模具设计也不同于常规模锻工艺。
The deformation and flow of metal in the process of roll forging are much different from those of ordinary die forging, So are the design of its technology, preliminary forming dies and dressing dies.
通过CAE的平台，对某典型汽车内覆盖加强件的冲压成形工艺方案研究，得出了一般大型板料冲压成形方案制定的方法。
A general method has been put out by discussing the stamping process of a strengthening panel based on CAE platform.
对一般的空心型材制品，由于挤压成形本身的工艺特点，不可避免的会在产品表面产生挤压焊合线，影响到产品的表面质量。
For common hollow sections, welding lines on the surface are inevitable due to their forming characteristics, which damage their surface integrity.
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