X80管线钢激光电弧复合焊接数值分析  

Numerical analysis of X80 pipeline steel in laser-arc hybrid welding

作　　者：石庭深 朱加雷[2] 焦向东[2] 孟庆晨[2] 冯艳鹏 张永明[2] 

机构地区：[1]北京化工大学机电工程学院,北京100029 [2]北京石油化工学院机械工程学院,北京102617

出　　处：《电焊机》2016年第2期78-81,共4页Electric Welding Machine

基　　金：国家自然科学基金(51205026;51175046);科技北京百名领军人才培养工程(Z131104000513025);北京石油化工学院优秀青年教师和管理骨干培育计划资助项目:BIPT-BPOYTMB-2013;北京石油化工学院大学生研究训练[URT]计划资助项目(2014J00049;2015J00084)

摘　　要：根据激光电弧复合热源焊接的物理特征,建立双椭球体热源焊接模型。使用ANSYS有限元分析软件对X80管线钢激光电弧复合焊接的温度场和应力场进行耦合分析,在此基础上对10 mm厚X80管线钢进行对接焊试验,并对比分析数值计算结果和实际焊接试验结果。结果表明,数值仿真得到的焊缝截面形状、焊缝尺寸以及试件残余应力与焊接试验所得结果吻合,验证了选用热源模型的适用性,为焊缝组织和性能的预测奠定了基础。According to the physical characteristics of laser-arc hybrid welding heat source,the double ellipsoid welding heat source model was established. Using the ANSYS FEM software to analyze the temperature and residual stress distribution of X80 jam welded by hybrid welding. On this basis,experiments were carried out on X80 pipeline steel with 10 mm thick and the simulation results were compared with the experimental results. The results showed that the simulation results of weld contour,weld size and residual stresses were all agreed with the experimental results,which proved the applicability of the heat source model and laid a solid foundation for the prediction of weld microstructure and properties.

关 键 词：X80管线钢 复合焊 数值模拟 残余应力 

分 类 号：TG456.9[金属学及工艺—焊接]