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不锈钢激光搭接焊接头温度场数值模拟及分析
Alternative TitleNumerical Simulation and Analysis on Temperature Field for Laser Welded Stainless Steel Lap Joint
褚庆臣; 何秀丽; 虞钢; 郑彩云; 赵树森; 宁伟健
Source Publication中国激光
2010
Volume37Issue:12Pages:3180-3186
ISSN0258-7025
Abstract温度场是影响激光焊接焊缝成形质量的关键因素. 针对非熔透型激光搭接焊接头焊缝成"钉头"状的特点,通过分析焊接时材料吸收激光能量的分布情况,提出了高斯面热源加线性递增式柱热源的复合体热源模型. 模型考虑板间接触热阻的影响,并将计算结果和试验结果进行了对比,发现模拟出的焊缝形状和试验吻合较好;此外基于本模型对焊缝各处的热循环与焊缝组织形貌及显微硬度的关系进行了分析. 结果表明,焊缝组织形貌及显微硬度除与加热和冷却速率有关外,峰值温度对其也有重要影响;在热循环基本一致的情况下焊缝的性能相似. 该模型较准确地模拟了薄板激光深熔焊接熔池温度场,对研究激光深熔焊接温度场问题和激光工艺参数的优化选择具有参考价值
Keyword激光技术 激光搭接焊 数值模拟 温度场 吸收系数 热循环 接触热阻
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Indexed ByEI ; CSCD
Language中文
Funding Organization国家自然科学基金重点项目(10832011,10972222) ; 中国科学院知识创新工程领域前沿项目资助课题
CSCD IDCSCD:4088714
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44032
Collection先进制造工艺力学重点实验室
Corresponding Author褚庆臣
Recommended Citation
GB/T 7714
褚庆臣,何秀丽,虞钢,等. 不锈钢激光搭接焊接头温度场数值模拟及分析[J]. 中国激光,2010,37(12):3180-3186.
APA 褚庆臣,何秀丽,虞钢,郑彩云,赵树森,&宁伟健.(2010).不锈钢激光搭接焊接头温度场数值模拟及分析.中国激光,37(12),3180-3186.
MLA 褚庆臣,et al."不锈钢激光搭接焊接头温度场数值模拟及分析".中国激光 37.12(2010):3180-3186.
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