Study on Robot Arc Welding Technology of Titanium Alloy
Taking TC4 titanium alloy plate as the research object,the robot pulsed argon arc welding equipment was used to carry out the influence of different welding gun angles and different welding gun angles on the weld formation together with pulse frequency,welding speed and peak current re-spectively,and the weld mechanical properties corresponding to the optimized parameters were test-ed.The test results show that with the welding torch angle changing from 45° forward to 45° back-ward along the welding direction,the front and back weld width increases,and at low pulse frequen-cy,the front and back weld width increases,while at high speed welding,the increase rate of back weld width is higher.The results of mechanical properties show that the strength of the weld after welding is higher than that of the base metal,while the plasticity is decreased.The tensile strength of the weld is not lower than that of the base metal,the shear strength is higher than that of the base metal,and the bending angle is lower than that of the base metal.