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Abstract：
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The technological property of automotive structural part, stamping process, technological scheme and layout design of the part were analyzed in detail. The structure of the die, main design points and manufacture process of the key components of the die were introduced. The large multi-position precision progressive die was designed and manufactured. Starting from optimizing layout, the multi-position progressive die replaced the original single-process dies and increased the work efficiency over by 3.5 times and reduced work intensity. The special stamping processes were applied to ensure the location precision of the planes and hole in the planes(±0.3mm), and right angle precision (below 0.6°). Manufacturing precision of mold reached 0.002mm, which improved die life significantly. It is proved that the die structure is reasonable and able to ensure the product quality. The design has reference value to the design of the progressive dies for similar parts.
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Funds：
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天津市科委科技支撑计划重点项目(08ZCKFGX01900)
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AuthorIntro：
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Reference：
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[1]张正修,赵向珍.级进模排样设计[J].模具制造,2004,(12):26-29.
[2]张华.组合插片多工位级进模设计[J].武汉职业技术学院学报,2004,(3):84-87.
[3]卢伟毅,潘柏松,邵慧敏,等.链板级进模排样方案的模糊决策及设计[J].模具工业,1998,(1):3-6.
[4]成虹,李学锋.多工位精密级进模排样设计的研究[J].模具工业,2000,(4):14-16.
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