JPS5633194A - Processing method for groove of circumferential welding - Google Patents

Processing method for groove of circumferential welding

Info

Publication number
JPS5633194A
JPS5633194A JP10591579A JP10591579A JPS5633194A JP S5633194 A JPS5633194 A JP S5633194A JP 10591579 A JP10591579 A JP 10591579A JP 10591579 A JP10591579 A JP 10591579A JP S5633194 A JPS5633194 A JP S5633194A
Authority
JP
Japan
Prior art keywords
groove
welding
generated
inner diameter
tube
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
JP10591579A
Other languages
Japanese (ja)
Inventor
Sadao Mizuno
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10591579A priority Critical patent/JPS5633194A/en
Publication of JPS5633194A publication Critical patent/JPS5633194A/en
Pending legal-status Critical Current

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  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

PURPOSE: To prevent the stress concentration by the thickness deceases or lowering of fatigue strength at the circumferential welding of the same shape tube, etc., by expanding one of the inner diameter of opening part of the material to be welded so as to be the same with that of the other opening part and joining the groove.
CONSTITUTION: The enlarged part 7 is formed by expanding the tube having a small diameter and unfitness of inner diameter of the tube is eliminated after forming the groove parts 4, 4 of the tubes 1, 1 at the circumferential welding of the tubes 1, 1 having a different inner diameter. As a result, decrease of thickness of weld zone is not generated and plastic deformation capable of canceling the welding contraction deformation is generated by carrying out the circuit welding, is generated and the strain concentration is lightened.
COPYRIGHT: (C)1981,JPO&Japio
JP10591579A 1979-08-22 1979-08-22 Processing method for groove of circumferential welding Pending JPS5633194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10591579A JPS5633194A (en) 1979-08-22 1979-08-22 Processing method for groove of circumferential welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10591579A JPS5633194A (en) 1979-08-22 1979-08-22 Processing method for groove of circumferential welding

Publications (1)

Publication Number Publication Date
JPS5633194A true JPS5633194A (en) 1981-04-03

Family

ID=14420150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10591579A Pending JPS5633194A (en) 1979-08-22 1979-08-22 Processing method for groove of circumferential welding

Country Status (1)

Country Link
JP (1) JPS5633194A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129876A (en) * 1974-09-06 1976-03-13 Fuji Electric Co Ltd HANDOTAIUEHANOMASUKINGU HOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129876A (en) * 1974-09-06 1976-03-13 Fuji Electric Co Ltd HANDOTAIUEHANOMASUKINGU HOHO

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