钛钢异种材料激光焊接的温度场分布研究  

Temperature Field Analysis of Laser Welding of Titanium Steel Dissimilar Material

作　　者：胡小红[1] 王玉玲[1] 许杨[1] 

机构地区：[1]青岛理工大学机械工程学院,山东青岛266033

出　　处：《汽车零部件》2016年第1期1-6,共6页Automobile Parts

摘　　要：基于ANSYS有限元分析,利用高斯移动热源,针对钛合金与不锈钢两种属性不同的材料,通过数值模拟研究激光焊接时偏焦量的变化对温度场的影响。分析不同偏焦量下钛钢两侧温度分布情况及其变化规律。通过模拟分析得出：钛钢异种材料激光焊接偏焦量偏离钢侧的距离不应超过0.7 mm,最佳偏焦量应为0.4-0.6 mm。Based on ANSYS finite element analysis, using the moving gauss heat source, aiming at titanium alloy and stainless steel two kinds of different materials, the influence of partial focal value ehange on the temperature field of laser welding was studied through numerical simulation. The temperature distribution and its variation law on both sides of the titanium and steel under different partial focal value were analyzed. Through simulation analysis, it is concluded that the distance of the partial focal from steel side shouht not be more than 0. 7 mm, best partial focal value shouhl be 0.4 - 0. 6 mm.

关 键 词：钛钢异种金属 偏焦量 温度场 激光焊接 

分 类 号：TG456.7[金属学及工艺—焊接]