Welding method for friction stud welding

The invention discloses a welding method for friction stud welding. The welding method for friction stud welding comprises the following steps: S1, pressing workpieces by using a pressing device and putting the workpieces in a welding box; S2, introducing protective gas into the welding box and pressing studs rotating at high speed on the surfaces of the workpieces; and S3, pressing the studs into the surfaces of the workpieces to be integrated and moving to the interiors of the workpieces at the same time, in whichwherein the range of the pressing depth is 0.1-1mm; the generated friction heat is used for enabling the studs to be integrated with the workpieces. The welding method for friction stud welding has the advantages that the welding method is relatively simple and practical, the joint welding strength can be effectively improved, the welding efficiency and the joint quality can be optimized, and the possible defects of faulty welding, cracks and air holes in the conventional stud welding can be avoided.