JPS5456958A - Butt welding - Google Patents
Butt weldingInfo
- Publication number
- JPS5456958A JPS5456958A JP12243777A JP12243777A JPS5456958A JP S5456958 A JPS5456958 A JP S5456958A JP 12243777 A JP12243777 A JP 12243777A JP 12243777 A JP12243777 A JP 12243777A JP S5456958 A JPS5456958 A JP S5456958A
- Authority
- JP
- Japan
- Prior art keywords
- stress
- joints
- thermal expansion
- metal
- butt welding
- 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
Links
Landscapes
- Arc Welding In General (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To reduce cracks due to stress relief annealing by alleviating the tensile residual stress at stress-concentrated portion after butt welding by the method in which a metal of a thermal expansion coefficient greater than that of the base metal is inserted into a part of joints to be welded.
CONSTITUTION: The metal 2 of austenite stainless steel, etc., having a thermal expansion coefficient greater than that of the base matal 1, is inserted into a part of joints to be welded to form a sandwitched structre. In consequence, after finishing the welding of the joints, a stress relief annealing treatment is made and thereby the base metal 1 located at the central part where the high thermal expansion material 2 is provided becomes expanded. Thus, a compressive stress is applied easily to the weld 3 to relief the tensile residual stress, thus preventing the occurrence of cracks due to the stress relief annealing. This butt welding method is more effective in cases where at least one side of the base metal 1 is a low alloy steel
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12243777A JPS5456958A (en) | 1977-10-14 | 1977-10-14 | Butt welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12243777A JPS5456958A (en) | 1977-10-14 | 1977-10-14 | Butt welding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5456958A true JPS5456958A (en) | 1979-05-08 |
Family
ID=14835819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12243777A Pending JPS5456958A (en) | 1977-10-14 | 1977-10-14 | Butt welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5456958A (en) |
-
1977
- 1977-10-14 JP JP12243777A patent/JPS5456958A/en active Pending
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