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

[摘要] The processing methods and quality of T-joint directly affect the performance of stiffened panels. In this paper, firstly, a ten-six axis dual-beam laser welding system is constituted to research the T-joint welding process. Then, the ten-six axis controller in laser welding system is designed to achieve the accurate controlling for position and attitude of welding head during 3D welding of T-joint. In addition, the real-time measurement on both sides of T-joint is adopted to enable deformation compensation and precise tracking for welding seam. Finally, the T-joint welding tests are carried out and the results show that the welding seam errors are within allowable range. Consequently, the dual-beam laser welding and seam tracking control technology presented in this study can meet the processing requirements for T-joint.

[发布机构] State Key Lab of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan; 430074, China^1;Guangdong Intelligent Robotics Institute, Dongguan; 523808, China^2

[效力级别] 化学工业 [学科分类] 材料科学（综合）

[关键词] Deformation compensation;Laser welding system;Precise tracking;Processing method;Real time measurements;Stiffened panel;Tracking controls;Welding process