铜-钢层合板球冠面激光弯曲机理及成形试验  

Laser Bending Mechanism and Forming Test of Spherical Crown Surface of Copper-steel Laminates

作　　者：马国锐 王续跃[1] MA Guorui;WANG Xuyue(National Key Laboratory of High Performance Precision Manufacturing,School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学机械工程学院高性能精密制造全国重点实验室,辽宁大连116024

出　　处：《热加工工艺》2025年第1期98-103,共6页Hot Working Technology

基　　金：国家自然科学基金项目(51375073,51621064)。

摘　　要：铜-钢层合板性能优异,激光扫描弯曲可对其进行多种形状的柔性成形,研究不同激光加工机理对其曲面成形的影响规律具有重要意义。针对激光功率与离焦量两个对增厚机理影响较大的因素做了单因素试验,分析其对板件弯曲角度与增厚量的影响,得到最适合增厚机理加工的激光参数组合,并以此为基础进行了层合板球冠面成形的单机理与双机理试验。球冠面成形试验证明采用温度梯度机理与增厚机理结合的扫描方式比采用单一温度梯度机理加工的扫描方式所成形球冠面成形幅度更大,且成形样貌更规整。研究结果为深入研究层合板三维曲面成形方案以及三维变形规律提供了试验依据。Copper-steel laminated plates have excellent performance,and laser scanning bending can perform flexible forming of various shapes.Studying the influence of different laser processing mechanisms on the surface forming is of great significance.A single factor experiment was conducted on the two factors that have a significant impact on the thickening mechanism,namely laser power and defocus amount,their effects on the bending angle and thickening amount of the plate were analyzed.The most suitable laser parameter combination for thickening mechanism processing was obtained,and based on this,single and dual mechanism experiments were conducted on the formation of the spherical crown surface of the laminated plate.The forming experiment of the spherical crown surface has proven that the scanning method combining temperature gradient mechanism and thickening mechanism has a greater forming amplitude and a more regular forming appearance than the scanning method using a single temperature gradient mechanism.The research results provide experimental basis for in-depth research on the three-dimensional curved surface forming scheme and three-dimensional deformation law of laminated plates.

关 键 词：铜-钢层合板 激光弯曲 增厚机理 球冠面成形 

分 类 号：TG456.7[金属学及工艺—焊接] TB331[一般工业技术—材料科学与工程]