JPS6457983A - Butt welding method - Google Patents
Butt welding methodInfo
- Publication number
- JPS6457983A JPS6457983A JP21382387A JP21382387A JPS6457983A JP S6457983 A JPS6457983 A JP S6457983A JP 21382387 A JP21382387 A JP 21382387A JP 21382387 A JP21382387 A JP 21382387A JP S6457983 A JPS6457983 A JP S6457983A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- width direction
- restraint
- plate width
- sheet steels
- 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.)
- Granted
Links
Abstract
PURPOSE:To prevent joining defects and buckling in the plate width direction of sheet steels by applying an electric current and upset to join sheet steels while releasing the restraint in the plate width direction along with the progress of welding. CONSTITUTION:A thermal deformation restraining device 5 provided with a restraint control mechanism 4 capable of changing the restraint in the plate width direction by the optional quantity at the optional time is used. Then, the formation of a gap taking place at the butt edges of the sheet steels 2 at the early stage of the welding is prevented and the restraint is reduced or released along with the progress of the welding and further, the current and upset are applied to complete the welding. By this method, the joining defects due to the heat input unevenness are prevented and the buckling in the plate width direction of the sheet steels can be prevented.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21382387A JPS6457983A (en) | 1987-08-27 | 1987-08-27 | Butt welding method |
US07/203,156 US4912295A (en) | 1987-08-27 | 1988-06-07 | Butt welding method |
FR888807624A FR2619736B1 (en) | 1987-08-27 | 1988-06-08 | END WELDING PROCESS |
DE3819720A DE3819720A1 (en) | 1987-08-27 | 1988-06-09 | Butt welding process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21382387A JPS6457983A (en) | 1987-08-27 | 1987-08-27 | Butt welding method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6457983A true JPS6457983A (en) | 1989-03-06 |
JPH0527514B2 JPH0527514B2 (en) | 1993-04-21 |
Family
ID=16645618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21382387A Granted JPS6457983A (en) | 1987-08-27 | 1987-08-27 | Butt welding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6457983A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6077378B2 (en) * | 2013-04-19 | 2017-02-08 | ソマール株式会社 | Polyimide copolymer and method for producing the same |
-
1987
- 1987-08-27 JP JP21382387A patent/JPS6457983A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0527514B2 (en) | 1993-04-21 |
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