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Title:
WELDING METHOD, CAN BODY MANUFACTURING METHOD, AND WELDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/248650
Kind Code:
A1
Abstract:
Provided are a welding method and a welding device which use a consumable electrode and can achieve both an increase in welding speed and an enlargement of the dimensional margin for a weld gap. This welding method comprises a preparation step and a welding step. This welding method comprises a preparation step and a welding step. In the welding step, in a state in which a first object (5a) to be welded and a second object (5b) to be welded are disposed such that a portion where a first end (5aa) and a second end (5ba) abut each other is formed, an arc (A) generated by a non-consumable electrode (4) having a center axis (4a) is used to weld said portion. The center axis (4a) of the non-consumable electrode (4) is inclined relative to a normal line (5c) to said portion relating to the surfaces of the first object (5a) to be welded and the second object (5b) to be welded. The center axis (4a) is inclined relative to the normal line (5c) toward the opposite direction of a movement direction of the non-consumable electrode (4) relative to said portion. The inclination angle θ of the center axis (4a) relative to the normal line (5c) is at least 40° but less than 80°.

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Inventors:
IMAI TOMOYA (JP)
SAKAKIBARA MASAAKI (JP)
MONODANE TAKESHI (JP)
Application Number:
PCT/JP2023/018311
Publication Date:
December 28, 2023
Filing Date:
May 16, 2023
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B23K9/167; B23K9/00; B23K9/12
Foreign References:
JP2013534185A2013-09-02
JPH09164481A1997-06-24
JPH06320280A1994-11-22
JP2008114279A2008-05-22
US20150239058A12015-08-27
JP2009183963A2009-08-20
JPS4834048A1973-05-15
JPH1085938A1998-04-07
JPS56126077A1981-10-02
KR20120057089A2012-06-05
JPS52124445A1977-10-19
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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