公开(公告)号：US20250065437A1

公开(公告)日：2025-02-27

申请号：US18945601

申请日：2024-11-13

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xiaochao LIU ,  Zhonghua NI ,  Jingyue LUO ,  Xianjun PEI ,  Yongzhe LI

IPC: B23K20/12 ,  B23K20/26

Abstract: A friction stir welding apparatus includes a hollow stirring bar, a clamping mechanism, a welding machine main shaft, a supporting carriage, a cooling system, a coolant tank, a guide rail, and pipes. The cooling system is connected with the outer surface of the welding machine main shaft through two sealed bearings; the clamping mechanism is connected with the welding machine main shaft; the clamping mechanism clamps one end of the stirring bar; the other end of the stirring bar penetrates the welded workpiece to engage with the supporting carriage; the guide rail is installed below the supporting carriage; the pipes includes a first pipe and a second pipe; one end of the first pipe is connected with the outlet of the tank, and the other end of the first pipe is connected with the inlet of the cooling system. The second pipe returns the cooling medium to the tank.