⑴设计的冲压件必须满足产品使用和技术性能，并能便于组装及修配。
⑵设计的冲压件必须有利于提高金属材料的利用率，减少材料的品种和规格，尽可能降低材料的消耗。在允许的情况下采用价格低廉的材料，尽可能使零件做到无废料及少废料冲裁。
⑶设计的冲压件必须形状简单，结构合理，以有利于简化模具结构、简化工序数量，即用少、简单的冲压工序完成整个零件的加工，减少再用其他方法加工，并有利于冲压操作，便于***实现机械化与自动化生产，以高劳动生产率。
在冲压件行业里，冲压有时也称板材成形,但略有区别。所谓板材成型是指用板材、薄壁管、薄型材等作为原材料进行塑性加工的成形方法统称为板材成形，此时，厚板方向的变形一般不着重考虑。
In the stamping industry, stamping is sometimes referred to as sheet metal forming, but there is a slight
The so-called sheet forming means the forming method of plastic forming with sheet, thin-walled tube and thin material as raw material, which is called sheet forming. At this time, the deformation of the thick plate is generally not cidered.
深缝：锯削深缝时即当锯缝的深度超过锯弓高度时，高度时，锯弓就会与工具相碰，无法继续锯削；此时应将锯条拆出，将锯条转90。
Deep seam: when sawing deep seams, when the depth of the sawblade exceeds the height of the saw bow, when the height is high, the saw bow is touched by the tool and can not continue to be sawed; the saw strip should be removed and the saw blade is turned 90.