Twin spot Fiber Laser TIG Hybriod Welding for Cover Plate of ITER TF Coil.

Abstract

Twin spot fiber laser head with the TIG arc was developed in order to weld the both sides of cover plate simultaneously. By the optimization of welding condition for twin spot laser-arc hybrid welding process, it was confirmed to be effective in the prevention of the gap movement during welding and the acquisition of the proper penetration without the weld defect.