基于Simufact.welding的铝合金薄板激光焊接模拟研究
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摘要
对铝合金薄板激光焊接进行了仿真研究,并对不同激光功率和焊接速度下的温度场进行了分析。仿真结果表明,随着激光功率的增加,热影响区的面积增加;随着焊接速度的增加,熔池的截面面积减小。最后,在温度场模拟结果的基础上,给出了焊件冷却后的应力场分布云图。
The simulation of laser welding of aluminum alloy thin sheet was carried out. The temperature field of laser welding of aluminum alloy thin sheet under different laser powers and welding speeds was analyzed. The simulation results show that with the increase of laser power, the area of heat affected zone increases, and with the increase of welding speed, the cross sectional area of molten pool decreases. Finally, based on the simulation result of temperature field, the stress field nephogram after cooling was given.
The simulation of laser welding of aluminum alloy thin sheet was carried out. The temperature field of laser welding of aluminum alloy thin sheet under different laser powers and welding speeds was analyzed. The simulation results show that with the increase of laser power, the area of heat affected zone increases, and with the increase of welding speed, the cross sectional area of molten pool decreases. Finally, based on the simulation result of temperature field, the stress field nephogram after cooling was given.
引文
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[2]农琪,谢业东,金长义,等.铝合金焊接技术的研究现状与展望[J].热加工工艺,2013,42(9):160-162.
[3]Childs T H C,Berzins M,Ryder G R,et al.Selective laser sintering of an amorphous polymer-simulations and experiments[J].Proceedings of the Institution of Mechanical Engineers,Part B:Journal of Engineering Manufacture,1999,213(4):333-349.
[4]汪洪峰,黄铭敏,田昕.汽车铝合金薄板激光焊接数值模拟[J].现代零部件,2009(6):30-32.
[5]唐思熠,张学军,郭绍庆,等.航空铝合金激光焊接的研究进展[J].电焊机,2014(6):7-12.
[6]黄王敏,王海东.激光熔覆法制备复合纳米氧化锆涂层[J].热加工工艺,2009,38(20):81-83.
[7]景祥.激光冲击强化对奥氏体不锈钢熔覆层/焊接区机械性能和组织的影响及缺陷检测[D].镇江:江苏大学,2016.
[8]杨志斌.铝合金机身壁板结构双侧激光焊接特征及熔池行为研究[D].哈尔滨:哈尔滨工业大学,2013.
[9]朱瑞栋,董文超,陆善平,等.基于SYSWELD的A7N01铝合金缓冲梁结构焊接过程数值模拟[J].焊接,2014(3):42-47.
[10]黄明,张建,胡忠健.基于Simufact的Q345钢-15℃时T形平角焊的仿真[J].金属功能材料,2013(6):18-24.