镁合金-碳纤维双激光热源铆焊模拟及熔池控形  

Simulation of dual laser heat source riveting welding of magnesium alloys with carbon fibres and melt pool shape controlling

作　　者：张欣雨 侯忠霖[1] 王杰 王英维 郭海泉 ZHANG Xinyu;HOU Zhonglin;WANG Jie;WANG Yingwei;GUO Haiquan(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051

出　　处：《辽宁科技大学学报》2025年第1期32-42,80,共12页Journal of University of Science and Technology Liaoning

摘　　要：采用连续-脉冲双激光热源旋转铆焊工艺对AZ31B镁合金与碳纤维增强树脂基复合材料(CFRP)进行连接,利用COMSOL软件建立焊接温度场模型,分析工艺参数对焊接熔池形貌的影响。结果表明:连续激光功率是影响熔深的核心因素,脉冲激光功率是重要因素,焊接速度、脉冲激光宽度是微小因素。连续激光功率是影响熔宽的核心因素,脉冲激光宽度是重要因素,脉冲激光功率、焊接速度是微小因素。基于各影响因素构建本熔池形貌数据库,对5.25 mm厚的镁合金板材与碳纤维板材焊接熔池形貌进行调控,其表面熔宽误差与腰部宽度误差(3.07%、4%)在合理范围之内,与实验结果保持一致。The continuous-pulse dual laser heat source rotary riveting welding process was adopted to connect AZ31B magnesium alloy with carbon fibre reinforced resin matrix composite(CFRP).Based on COMSOL simulation software was used to establish a welding temperature field model and analyze the influence of pro-cess parameters on the morphology of the welding molten pool.The results show that the continuous laser power is the core factor affecting the penetration depth,the pulse laser power is an important factor,and the welding speed and the pulse laser width are minor factors.For the weld width,the continuous laser power is the core factor,the pulse laser width is an important factor,and the pulsed laser power and the welding speed are minor factors.Based on various influencing factors,a database of the molten pool morphology was con-structed to regulate the morphology of the welding molten pool of 5.25 mm thick magnesium alloy plates and carbon fiber plates.The surface melt width error and waist width error(3.07%,4%)are within a reasonable range,and the experimental results remain consistent.

关 键 词：激光焊 连续-脉冲双激光复合热源 旋转铆焊 温度场 熔池控形 

分 类 号：TG456.7[金属学及工艺—焊接]