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| 拼焊板胀形成形不均匀性变形理论分析 | |
| 引用本文： | 田浩彬,林建平,刘瑞同,Smith L M.拼焊板胀形成形不均匀性变形理论分析[J].同济大学学报(自然科学版),2007,35(1):93-96. |
| 作者姓名： | 田浩彬 林建平 刘瑞同 Smith L M |
| 作者单位： | 1. 同济大学,机械工程学院,上海,200092;上海第二工业大学,机电学院,上海,201209 2. 同济大学,机械工程学院,上海,200092 3. 奥克兰大学,机械工程学院,罗切斯特,48309,美国 |
| 摘 要： | 从材料的变形机理出发，针对厚度比不同的拼焊板，通过有限元分析方法对降低成形极限的原因进行了分析和解释，证实焊缝两侧金属的变形条件差异和变形路径是影响整体变形程度的重要因素．并在此基础上，对曲线焊缝拼焊板的厚度比与成形高度之间的关系进行了研究，发现随着厚度的增加，成形高度并不呈递减的趋势，这与直线焊缝情况下是不同的． |
| 关 键 词： | 拼焊板 厚度比 成形极限 |
| 文章编号： | 0253-374X（2007）01-0093-04 |
| 修稿时间： | 2005-03-22 |
Theory of Non-uniform Deformation for Expanding Process with Tailor Welded Blank |
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| TIAN Haobin,LIN Jianping,LIU Ruitong,Smith L M.Theory of Non-uniform Deformation for Expanding Process with Tailor Welded Blank[J].Journal of Tongji University(Natural Science),2007,35(1):93-96. | |
| Authors: | TIAN Haobin LIN Jianping LIU Ruitong Smith L M |
| Institution: | 1.School of Mechanical Engineering, Tongji University, Shanghai 200092, China; 2.School of Mechanical and Electronic Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China; 3, Mechanical Engineering Department, Oakland University, Rochester 48309, USA |
| Abstract: | Based on the mechanics of deformation, a series of tailor welded blank with different thickness ratios for expanding process were studied by finite element method. Results show that different deformation condition and history are the main factors that determine the deformation degree of tailored blank. Finally, a group of tailor welded blank with curved welded line is performed. Results show that the forming heights do not decrease with the increase of thickness ratio, which differ to that of tailor welded blank with straight welded line. |
| Keywords: | tailor welded blank thickness ratio forming limit |
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