US 11,724,337 B2
Hybrid welding device
Katsura Owaki, Kanagawa (JP); Isao Kawaguchi, Kanagawa (JP); Satomi Maki, Kanagawa (JP); Hiroki Matsuo, Kagawa (JP); Takahiro Akizuki, Kagawa (JP); and Naoya Sawada, Kagawa (JP)
Assigned to IHI INSPECTION & INSTRUMENTATION CO., LTD., Tokyo (JP); and TADANO LTD., Kagawa (JP)
Appl. No. 17/56,383
Filed by IHI INSPECTION & INSTRUMENTATION CO., LTD., Tokyo (JP); and TADANO LTD., Kagawa (JP)
PCT Filed May 15, 2019, PCT No. PCT/JP2019/019338
§ 371(c)(1), (2) Date Nov. 17, 2020,
PCT Pub. No. WO2019/221181, PCT Pub. Date Nov. 21, 2019.
Claims priority of application No. 2018-096124 (JP), filed on May 18, 2018.
Prior Publication US 2021/0252636 A1, Aug. 19, 2021
Int. Cl. B23K 26/142 (2014.01); B23K 26/348 (2014.01); B23K 26/146 (2014.01); B23K 26/14 (2014.01)
CPC B23K 26/142 (2015.10) [B23K 26/1462 (2015.10); B23K 26/348 (2015.10)] 10 Claims
OG exemplary drawing
 
1. A hybrid welding device that performs welding by combining use of laser welding and arc welding, the hybrid welding device comprising:
a laser head that emits a laser beam to a welded portion; and
a welding torch that supplies a filler material to the welded portion, wherein
the laser head includes: a laser nozzle that forms an optical path of the laser beam; a first rectifying plate arranged at a tip side of the laser nozzle so as not to interfere with the laser beam; a first air knife that injects first compressed air along the first rectifying plate; a second rectifying plate arranged between the first rectifying plate and the welded portion so as not to interfere with the laser beam; and a second air knife that injects second compressed air along the second rectifying plate,
the first rectifying plate and the second rectifying plate have a shape elongated in a direction perpendicular to an optical axis of the laser beam and a welding direction, and
the second rectifying plate has a torch opening through which a tip of the welding torch can be inserted.