Research on titanium alloy A-TIG welding process technology
In the world,the active welding of titanium alloy mainly stays in the process research of one-component active agent,and the welding process under the active agent formula is rarely explored,especially for the active welding process of 8mm thick TC4 titanium alloy.Based on orthogonal design method,A-TIG welding process research was carried out for TC4 titanium alloy,and the influence of the welding current、arc length、welding speed and argon flow on weld bead.Through the self-made activating fluxes coating device,the influence of activating fluxes coating amount on weld forming was further explored.The result show that the best welding process parameters are as follows,the welding current is 170A～220A,the welding speed is 100～130mm·min-1,the arc length is 1 mm and the argon flow rate is 14～22L·min-1,and the mechanical properties of the welding seam for the weld pores、tensile properties and hardness meet the relevant standards;The weld penetration increases first with the increase of coating amount reaching maximum at 0.06g/cm2,when the amount of activating fluxes continue to increase,the penetration will decrease.
万方数据
维普
