JPS5573474A - Butt welding method of thin-wall tubular bodiy - Google Patents

Butt welding method of thin-wall tubular bodiy

Info

Publication number
JPS5573474A
JPS5573474A JP14746878A JP14746878A JPS5573474A JP S5573474 A JPS5573474 A JP S5573474A JP 14746878 A JP14746878 A JP 14746878A JP 14746878 A JP14746878 A JP 14746878A JP S5573474 A JPS5573474 A JP S5573474A
Authority
JP
Japan
Prior art keywords
tubular
arc
welding
thin
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14746878A
Other languages
Japanese (ja)
Inventor
Wataru Shimada
Kazuma Kusakawa
Minoru Hatashita
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14746878A priority Critical patent/JPS5573474A/en
Publication of JPS5573474A publication Critical patent/JPS5573474A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To form a beautiful bead appearance by preventing recess or protrusion in the inner and outer surfaces of tubular body, by moving the arc start piece together with the welding torch, with respect to the thin-wall tubular body to be welded.
CONSTITUTION: A thin-wall tubular body to be welded 1 is rotated at a specified speed, and a welding arc 3 is struck in the upper surface of an arc start piece 6 by means of a welding torch 2. Next, the arc start piece 6 is brought close to the thin-wall tubular body 1, and the arc part 6a thereof is caused to contact with the outer circumference of the thin-wall tubular body 1. Then, the welding torch 2 is moved, together with the welding arc 3, to just above the thin-wall tubular body 1, and the thin-wall tubular body 1 is subjected to full-circled butt welding. After complete welding, the welding arc 3 is, without shielding, returned to above the arc start piece 6 together with the welding torch 2, and the arc start piece 6 is drawn back. In this method, wastefull comsumption of tungsten electrode 2a of the torch 2 may be prevented, and always stable welding may be performed.
COPYRIGHT: (C)1980,JPO&Japio
JP14746878A 1978-11-29 1978-11-29 Butt welding method of thin-wall tubular bodiy Pending JPS5573474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14746878A JPS5573474A (en) 1978-11-29 1978-11-29 Butt welding method of thin-wall tubular bodiy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14746878A JPS5573474A (en) 1978-11-29 1978-11-29 Butt welding method of thin-wall tubular bodiy

Publications (1)

Publication Number Publication Date
JPS5573474A true JPS5573474A (en) 1980-06-03

Family

ID=15431055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14746878A Pending JPS5573474A (en) 1978-11-29 1978-11-29 Butt welding method of thin-wall tubular bodiy

Country Status (1)

Country Link
JP (1) JPS5573474A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009160661A (en) * 2009-04-23 2009-07-23 Mitsubishi Electric Corp Arc welding equipment
JP2009285687A (en) * 2008-05-29 2009-12-10 Asmo Co Ltd Welding apparatus and method
CN104526202A (en) * 2014-12-30 2015-04-22 山西汾西重工有限责任公司 Combined type match-welding ring for butt welding of thin walled cylinders

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009285687A (en) * 2008-05-29 2009-12-10 Asmo Co Ltd Welding apparatus and method
JP2009160661A (en) * 2009-04-23 2009-07-23 Mitsubishi Electric Corp Arc welding equipment
CN104526202A (en) * 2014-12-30 2015-04-22 山西汾西重工有限责任公司 Combined type match-welding ring for butt welding of thin walled cylinders

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