激光拼焊焊缝碾压成型工艺研究
Roller Forming process of Weld Line for Tailored Blank Laser Welding
闫水中，王军义
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作者单位：新疆大学机械工程学院
中国科学院沈阳自动化研究所
中文关键字：激光拼焊；碾压成型；数值模拟
英文关键字：Tailored Blank Laser Welding; roller forming; Numerical simulation
中文摘要：提出激光拼焊焊缝碾压预成形工艺来降低激光拼焊对板材边缘直线度的要求。该工艺是通过碾压轮使板材边缘发生塑性变形填补焊缝间隙。采用有限元方法对碾压过程进行有限元分析，通过数值模拟加部分试验验证的方法来分析碾压轮宽度、直径和碾压深度对碾压效果的影响。焊接结果表明，激光拼焊焊缝碾压预成形技术能有效消除焊前两板间间隙，提高焊接质量。
英文摘要：To suffice the high straightness requirements of the steel sheets will be welded by laser， roller pre-forming process by plastically deforming is presented. To fill the gap weld, the process by using rolling wheel to make plastic deformation of sheet edge. The process is roller forming parameters that consist of width、 Diameter and depth of roller about plastically deforming is analyzed by Finite Elements and experiment. Rolling and welding experiment results show that the roller forming process can effectively reduce the gap between two plates before welding, and weld the sheets with good quality.