JPS54135643A - Treating method for crater of plasma keyhole welding - Google Patents

Treating method for crater of plasma keyhole welding

Info

Publication number
JPS54135643A
JPS54135643A JP4344178A JP4344178A JPS54135643A JP S54135643 A JPS54135643 A JP S54135643A JP 4344178 A JP4344178 A JP 4344178A JP 4344178 A JP4344178 A JP 4344178A JP S54135643 A JPS54135643 A JP S54135643A
Authority
JP
Japan
Prior art keywords
crater
pool
wire
core wire
feeding
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
JP4344178A
Other languages
Japanese (ja)
Inventor
Takao Mihara
Toshiaki Morichika
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota 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 Kubota Corp filed Critical Kubota Corp
Priority to JP4344178A priority Critical patent/JPS54135643A/en
Publication of JPS54135643A publication Critical patent/JPS54135643A/en
Pending legal-status Critical Current

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  • Arc Welding In General (AREA)

Abstract

PURPOSE: To carry out the crater treatment without producing blowhole, burn through or crater crack etc., by regulating feeding angle of core wire at a proper extent and directly feeding the core wire in molten pool.
CONSTITUTION: Relative advance of the basic material 3 and the torch 2 at the crater part, is stopped at the time of finished welding and feeding of the core wire 1 to the crater part, is started lowering flowing quantity of center gas. On this occasion, the angle α of the wire 1 is made within the extent of more than 50° and less than 80° and tip end of the wire 1 is dipped in the molten pool 4. Hereby, arc heat is transmitted in the pool 4 and outer surface of the pool 4 is solidified after the center gas is passed through to the outer face. Accordingly, blowhole is not remained and the back bead 5 is not projected and also trouble of crater crack is not taken place. Also, the above effect is obtained even when the basic material is thick and small diameter or much Cr, Ni components are contained.
COPYRIGHT: (C)1979,JPO&Japio
JP4344178A 1978-04-12 1978-04-12 Treating method for crater of plasma keyhole welding Pending JPS54135643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4344178A JPS54135643A (en) 1978-04-12 1978-04-12 Treating method for crater of plasma keyhole welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4344178A JPS54135643A (en) 1978-04-12 1978-04-12 Treating method for crater of plasma keyhole welding

Publications (1)

Publication Number Publication Date
JPS54135643A true JPS54135643A (en) 1979-10-22

Family

ID=12663776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4344178A Pending JPS54135643A (en) 1978-04-12 1978-04-12 Treating method for crater of plasma keyhole welding

Country Status (1)

Country Link
JP (1) JPS54135643A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133250A (en) * 1973-04-26 1974-12-20
JPS502642A (en) * 1973-05-12 1975-01-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133250A (en) * 1973-04-26 1974-12-20
JPS502642A (en) * 1973-05-12 1975-01-11

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