| 点焊拼接板成形极限图的试验与模拟研究 |
| |
| 引用本文： | 宛琼,李付国,方勇.点焊拼接板成形极限图的试验与模拟研究[J].锻压技术,2012,37(2):32-37. |
| |
| 作者姓名： | 宛琼 李付国 方勇 |
| |
| 作者单位： | 1. 河南科技大学 材料科学与工程学院,河南洛阳,471003
2. 西北工业大学 材料科学与工程学院,陕西西安,710072 |
| |
| 摘 要： | 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,其破坏的几率也就越接近。
|
| 关 键 词： | 点焊拼接板 成形极限图 场变量分布 极限拱高高度 |
Experiment and simulation research on forming limit diagram of spot welding tailored blank |
| |
| WAN Qiong
,
LI Fu-guo
,
FANG Yong.Experiment and simulation research on forming limit diagram of spot welding tailored blank[J].Forging & Stamping Technology,2012,37(2):32-37. |
| |
| Authors: | WAN Qiong LI Fu-guo FANG Yong |
| |
| Affiliation: | 1.School of Materials Science and Engineering,Hennan University of Science and Technology,Luoyang 471003,China; 2.School of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,China) |
| |
| Abstract: | Forming limit diagram is a simple and direct method for estimating metal blank properties.It is an efficient tool for blank stamping.The forming limit of spot welding tailored blank was studied by an experiment and simulation method.The result indicates that when the spot welding tailored blank is in the biaxial tension state,the peak value distributions of various field variables of spot welding tailored blank show obvious directionality.The rupture zone of the low plate is near the spot weld along the axle wire in width,while the rupture zone of the up plate lies near the spot weld along the axle wire in length.The more closed bidirectional tension is,the more closed the peak value of biaxial variables and also the probability of rupture are. |
| |
| Keywords: | spot welding tailored blank forming limit diagram distributions of field variables limit arch height |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
