Title:
A manufacturing method of a welding thing, a welding process, welding equipment
Document Type and Number:
Japanese Patent JP6091974
Kind Code:
B2
Abstract:
The purpose of the present invention is, in gas shielded arc welding using an active gas and flux-cored wire with primer-coated steel plates as a base material, to suppress occurrences of poor appearance in welded parts caused by pores originating in the primer. A welding method for a welded article positions a first steel plate and a second steel plate formed from primer-coated steel plates in a T shape and welds each of corner parts formed in two locations. Using flux-cored wire (100), which is formed by filling the inside of a steel outside skin with flux, and a shielding gas (carbon dioxide gas), a welding pool (400) is formed in the corner part by supplying a welding current to the corner part via an arc from the flux-cored wire (100) by means of the shielding gas; additionally, an alternating magnetic field is applied to the welding pool, and the welding current and the alternating magnetic field are set such that the welding current (A) and the magnetic flux density (mT) for the alternating magnetic field have a relationship of 20000 ¤ welding current × magnetic flux density ¤ 30000.
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Inventors:
Kei Yamazaki
Yuzuru
Koichi Suzuki
Yuzuru
Koichi Suzuki
Application Number:
JP2013086020A
Publication Date:
March 08, 2017
Filing Date:
April 16, 2013
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B23K9/08; B23K9/02; B23K9/173; B23K9/23; B23K35/30; B23K35/368
Domestic Patent References:
| JP62248569A | ||||
| JP11291032A | ||||
| JP10258364A | ||||
| JP2009190042A |
Attorney, Agent or Firm:
Jiro Kobe
Fumio Ogata
Takehiko Sunada
Fumio Ogata
Takehiko Sunada