振动理论约束下激光焊接技术在不锈钢动力电池外壳中的应用  

Application of laser welding technology in stainless steel power battery shell under the constraint of vibration theory

作　　者：淡书桥[1] 王家胜 Dan Shuqiao;Wang Jiasheng(Henan Polytechnic,Zhengzhou 450046,China;Engineering Training Center,North China University of Water Resources and Electric Power,Zhengzhou 450011,China)

机构地区：[1]河南职业技术学院,河南郑州450046 [2]华北水利水电大学工程训练中心,河南郑州450011

出　　处：《电镀与精饰》2023年第10期46-52,共7页Plating & Finishing

基　　金：中国管理科学研究院素质教育研究所“十三五”教育科研规划重点课题(批准号:ZGYSJS002)子课题(No.ZGYSJS002-HN170011);国家自然科学基金(No.5105269)。

摘　　要：激光焊接技术具有在时空尺度上的优势,精准控制激光能量释放过程对后续焊接工件性能影响较大。本文利用分子振动理论控制激光器对激光能量的释放过程,优化激光焊接技术。并将该技术应用在304不锈钢动力电池外壳中,分析工件焊接后的成形效果及性能。测试发现:焊接时保持激光入射位置居中,可提升焊接质量。精准控制激光能量的释放过程的焊接技术,较大程度强化了动力电池外壳与顶盖间焊缝的强度与硬度,具备较好的实践条件,验证了该激光焊接技术的有效性与适用性。Laser welding technology has the advantage of space-time scale.Accurately controlling the laser energy release process has a great impact on the performance of subsequent welding workpiece.In this paper,the molecular vibration theory was used to control the laser energy release process and optimize the laser welding technology.The technology was applied in 304 stainless steel power battery shell to analyze the forming effect and performance of the workpiece after welding.The test shows that keeping the laser incident position in the middle during welding can improve the welding quality.The welding technology of laser energy release process can greatly strengthen the strength and hardness of the weld between the power battery shell and the top cover,and provides good practical conditions,which verifies the effectiveness and applicability of the laser welding technology.

关 键 词：振动理论 激光能量 动力电池外壳 304不锈钢 激光焊接 

分 类 号：TG456.7[金属学及工艺—焊接]