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众所周知 ,设计合理而经济的冲压工艺及模具是实现低投入、高效益的关键环节 ,也是保证制件质量的重要因素。在模具的成本中 ,材料费用约占5 0 % ,因此 ,节约模具用材是降低成本的有效措施。图 1为ＣＡ6980客车的乘客门内包皮 (其外包皮与之对称 )。材料Ｑ2 3 5 ,板厚 1ｍｍ。?
As we all know, the design of a reasonable and economical stamping process and mold is to achieve low investment, high efficiency key link, but also to ensure the quality of the important parts. In the mold cost, material costs account for about 50%, therefore, saving mold material is an effective measure to reduce costs. Figure 1 shows the passenger compartment inner skin of the CA6980 passenger car (the outer skin is symmetrical). Material Q2 3 5, thickness 1mm. ?