摘要:
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通过对圆角半径较大的低盒形件无压边拉深成形进行有限元模拟与实验比较分析和盒形件成形过程中圆角区毛坯尺寸对成形高度的影响规律的研究 ,表明在计算毛坯展开尺寸时 ,运用修正的公式可以得到合理的轮廓线以保证零件的预定成形高度
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The drawing process without BHF of shallow square boxes with larger corner radius was simulated by FEM technology and its results are analyzed and compared with tests. The rule that blank corner dimensions influence on the height shaped during the drawing process of square boxes is investigated. The results indicate that in order to ensure the pre-shaped height of parts formulas with correction should be used when the unfold sizes of blank are calculated.
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作者简介:
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参考文献:
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1 王孝培冲压手册北京:机械工业出版社,1990
2 汪富钧无凸缘方盒形件拉深成形最佳工艺参数锻压机械,1994,(6):28~30
3 彭颖红金属塑性成形仿真技术上海:上海交通大学出版社,1999
4 肖作义,左虹,张涛,等盒形件拉深毛坯合理轮廓线的确定锻压机械,1995,(6):19~20
5 DnaformPCuser smanualmay,1999(1)
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