三维T形焊缝的双光束激光焊接及其焊缝跟踪控制  

Dual-beam laser welding and seam tracking control technology for 3D T-beam

作　　者：梁斌焱 许先雨 龚时华[1] 王启行 王鑫润 

机构地区：[1]华中科技大学装备数字化国家工程研究中心,武汉430070 [2]湖北荆能输变电工程公司,武汉430070

出　　处：《焊接学报》2016年第2期47-50,131,共4页Transactions of The China Welding Institution

基　　金："高档数控机床与基础制造装备"科技重大专项基金资助项目(2009ZX04007-031-06);国家自然科学基金项目(51375192);武汉市科技计划项目(2013010501010127)

摘　　要：由于三维T形焊缝的焊接中存在双光束焊接结构特殊、三维焊接轨迹难以拟合、焊接变形量大的难点,针对三维T形焊缝的双光束焊接需求,在六轴联动机床上设计了双光束焊接平台的方案,根据焊件的三维模型,运用三维焊接路径控制技术,生成实际的三维双光束焊接路径;在双光束焊接过程中采用双路实时闭环焊缝跟踪技术,对焊接过程中的焊接变形引起的焊接偏差进行的跟踪.结果表明,双光束焊接平台的实施及其双路焊缝跟踪技术很好的满足了双光束激光焊接要求.During dual-beam laser welding of 3D T-beam,the welding structure is complicated and special,the 3D welding path is difficult to fit,and the welding deformation is large. The real-time measurement of 3D T-seam welding was achieved,to solve the mentioned problems,with two laser visual sensors on a Six-axis NC welding machine tool. The actual 3D double-beam welding path was generated using 3D welding path control technology with 3D model of T-seam. Dynamic compensation in dualbeam welding process o f 3D T-seam was achieved using dualseam real-time closed-loop tracking technology. The actual welding results show that the established dual-beam welding seam tracking technology meets the requirements of dual-beam laser welding.

关 键 词：三维T形焊缝 双光束 激光焊接 双路焊缝跟踪 

分 类 号：TG439.4[金属学及工艺—焊接]