Primetals Technologies Japan, Ltd.

Ryosuke Mitsuoka

Yujiro Watanabe

Takahiro Yagi

Hirotoshi Tagata

Ryusuke Kimoto

Tatsuki Mitsuzumi

Takafumi Nakaya

Hiroshi Oishi

A laser processing head includes a laser irradiation part, a collimating optical system for collimating laser light from the laser irradiation part, and a collecting optical system for collecting the laser light after passing through the collimating optical system. An optical system including the collimating optical system and the collecting optical system is configured such that the laser light after passing through the collecting optical system has coma aberration. The laser processing head further includes a first moving part for moving at least one of the laser irradiation part or the collimating optical system so as to change a relative position of the collimating optical system with respect to the laser irradiation part, in a first direction orthogonal to a center axis of the laser irradiation part or the collimating optical system, and a second moving part for moving the collecting optical system so as to change a relative position of the collecting optical system with respect to the collimating optical system, in a second direction orthogonal to a center axis of the collecting optical system.

Laser processing head, laser processing device, and method for adjusting laser processing head

A welding apparatus including: a welding unit () that includes a pair of electrode wheels (A,B) arranged to face each other with a welding object therebetween; a pressing unit () that includes a pair of press rolls (A,B) that are arranged to face each other with the welding object therebetween and press a welded portion of the welding object welded by the electrode wheels (A,B); a cooling unit () that supplies a cooling medium toward the welded portion pressed by the press rolls; a heating unit () that heats the welded portion cooled by the cooling unit (); and a moving body () that supports the welding unit (), the pressing unit (), the cooling unit (), and the heating unit (), and reciprocates in a welding direction of the welding object.

Welding apparatus and welding method

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Hiroshima, Japan

Ryosuke Mitsuoka