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Experiment and simulation research on forming limit diagram of spot welding tailored blank
Author(s): 
Pages: 32-37
Year: Issue:  2
Journal: Forging & Stamping Technology

Keyword:  点焊拼接板成形极限图场变量分布极限拱高高度;
Abstract: 成形极限图是评定金属薄板成形性能最为简单和直观的方法,是解决板冲压问题的一个非常有效的工具.本文采用试验与模拟结合的方法对点焊拼接板的成形极限进行研究.结果表明:在接近双向拉伸的应力应变状态下,点焊拼接板各种场量最大值的分布具有明显的方向性.下层板的破裂危险区位于宽度方向中轴线的焊点附近,上层板的破裂危险区则位于长度方向中轴线的焊点位置;当点焊拼接板越接近双向等拉时,两个方向上变量的最大值就越接近...
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