Ihi Corporation

Tadafumi Kanayama

Satoshi Yamanaka

Hiroshi Saito

Takayuki Watanabe

Naoki Oiwa

Kunitaka Masaki

Rie Sakamoto

Koji Nezaki

Yasushi Tabei

In the present disclosure, friction stir welding tools having probes and stationary shoulders are disposed at corners between a first workpiece and a second workpiece. A welding device main body includes axially perpendicular movement units for moving spindle units, which hold the respective friction stir welding tools on a frame, in directions perpendicular to rotary shafts of probes, and axial movement units for moving the spindle units in directions parallel to the rotary shafts of the probes.

Friction stir welding device

In a friction stir welding apparatus, workpiece fixing surface plates () are installed on a framework (). In addition, a welding apparatus main body () including a bobbin tool () having a probe () protruding upward from a gap (), a spindle () configured to attach the bobbin tool () to an upper end section thereof, and a spindle driving apparatus () configured to pivot the spindle () is movably installed at the framework () in a longitudinal direction of the gap () via linear guide mechanisms () installed at both sides of the welding apparatus main body (). Further, a moving apparatus () is installed to move the welding apparatus main body () in the longitudinal direction of the gap (). According to the friction stir welding apparatus, since the welding apparatus main body () is supported by the framework () via both of the linear guide mechanisms (), a large welding reaction force can be sufficiently received. In addition, since workpieces () are welded from a lower side, the workpiece size is not limited by a size of the apparatus.

Friction stir welding apparatus

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Tokyo, Japan

Tadafumi Kanayama