胀形是在管坯内部或在板坯一侧通以高压液体﹑气体或放入刚体瓣模﹐迫使管﹑板塑性变形﹐以制成工件的冲压成形工艺。
耐候钢09CuPCrNi焊件冲压胀形的试验研究-加工工艺-机电之家网加工工艺栏目 关键词 焊缝；冲压；应变；胀形 [gap=517]Key words welds；stamping；strain；expanded
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通过对壳体胀形过程中的容积变化量进行测定和分析得到了壳体的体积变化规律。
The law of the shell volume changing during the process is obtained by measuring and analysing the volume change amount.
同时，在分析单型腔简单胀形件加压曲线的基础上讨论多型胶复杂胀形件的加压规范。
Furthermore, the proper specifications of bulging pressure of complex multi-mould parts are discussed on the basis of analysing singlemould bulging parts.
并利用韧性断裂准则作为胀形高度极限的判断依据，将模拟得到的必要数据代入到准则中。
Using the ductile fracture criterion as the reference for judging the limit height of the process to put the necessary simulation results into the criterion.
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