Title:
溶接部材の製造方法
Document Type and Number:
Japanese Patent JP7328546
Kind Code:
B2
Abstract:
To reduce generation of spatter and a blowhole due to arc welding regardless of kinds of shielding gas.SOLUTION: A welding wire (10) is pulled up to a position where the relationship of 1.25R≤D≤8R is satisfied in association with transition from a short circuit period to an arc period when a distance between a tip of the welding wire (10) and a welding-object portion is denoted by D and a diameter of the welding wire (10) is denoted by R, and during the arc period, an electric current is supplied so that a current waveform becomes a pulse waveform which satisfies the relationship of -5×104A/s≤a≤-2.5×104A/s when a denotes an inclination at which a current value drops immediately after reaching a peak current value.SELECTED DRAWING: Figure 1
Inventors:
Masahito Sakaki
Naoto Matsuhisa
Naoto Matsuhisa
Application Number:
JP2020013977A
Publication Date:
August 17, 2023
Filing Date:
January 30, 2020
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B23K9/073; B23K9/12; B23K9/173; B23K9/23
Domestic Patent References:
| JP2018144049A | ||||
| JP2019038006A | ||||
| JP2016159316A |
Foreign References:
| WO2014054261A1 | ||||
| US20090166344 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK
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