Taking 321 stainless steel as the research object, and the study of A-TIG welding was carried out. Firstly, the effect of single component active flux on the weld penetration was studied, and then the multi-component active flux was tested according to the results. Then the optimum active flux welding formula was obtained, and the mechanical properties of the welded joint were studied. The test result shows that the A-TIG welded joint of 321 stainless stee...
