metal sheet pressing 钣金冲压
It is more convenient, simple and effective to analyze quality problem of compound deformation of sheet metal pressing parts by means of the concept of stress circle.
利用应力分界圆的概念，分析冲压件复合变形时产生的质量问题比较方便、简便和有效。
Pressing sheet metal forming, its substrate should be crack.
压型金属板成型后，其基板不应有裂纹。
TOX sheet metal works-pressing joining is a new technology.
TOX板件冲压连接工艺是一种新的板件连接技术。
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