Advanced Automatic Welding System for Offshore Pipeline System with Seam Tracking Function

Three Dimension Curve Welding Seam Modeling for Seam Tracking

A novel modeling method for 3D curve welding seam is presented in this paper based on a welding robot for large workpiece. The 3D curve welding seam tracking is implemented by macro and micro motion which can control translational motion of torch in a large range and implement accurate seam tracking in small range. As such, the self-teaching seam model and real-time seam model are established t...

Seam Tracking for Laser Welding with an Industrial Robot

Because of their construction and flexibility, industrial robots are suitable to be used, with a laser source and an optical fiber, for laser welding of 3D products. However, the positioning accuracy of robots are insufficient for laser welding. Also the product and clamping tolerances are too wide for laser welding. These problems can be solved by applying sensors, which measure the location o...

Seam Tracking of Intelligent Arc Welding Robot

Intelligent welding robots obtain a good quality of the welding results. Research on automatic and intelligent control of Arc welding is an important means for ensuring weld quality, raising productivity, and improving labor conditions. Despite its widespread use in the various manufacturing industries, the full automation of the robotic welding has not yet been achieved partly because mathemat...

Design and validation of a universal 6D seam-tracking system in robotic welding using arc sensing

This paper presents the design and validation of a novel and universal 6D seam tracking system that reduces the need of accurate robot trajectory programming and geometrical databases in robotic arc welding. Such sensor driven motion control together with adaptive control of the welding process is the foundation for increased flexibility and autonomous behavior of robotic and manufacturing syst...

Survey of Robotic Seam Tracking Systems for Arc Welding