JPS6115769B2 - - Google Patents
Info
- Publication number
- JPS6115769B2 JPS6115769B2 JP7857780A JP7857780A JPS6115769B2 JP S6115769 B2 JPS6115769 B2 JP S6115769B2 JP 7857780 A JP7857780 A JP 7857780A JP 7857780 A JP7857780 A JP 7857780A JP S6115769 B2 JPS6115769 B2 JP S6115769B2
- Authority
- JP
- Japan
- Prior art keywords
- square
- radius
- curvature
- corner
- product
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 5
- 238000005482 strain hardening Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000012999 compression bending Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7857780A JPS574320A (en) | 1980-06-11 | 1980-06-11 | Manufacture of square steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7857780A JPS574320A (en) | 1980-06-11 | 1980-06-11 | Manufacture of square steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS574320A JPS574320A (en) | 1982-01-09 |
| JPS6115769B2 true JPS6115769B2 (enrdf_load_stackoverflow) | 1986-04-25 |
Family
ID=13665750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7857780A Granted JPS574320A (en) | 1980-06-11 | 1980-06-11 | Manufacture of square steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS574320A (enrdf_load_stackoverflow) |
-
1980
- 1980-06-11 JP JP7857780A patent/JPS574320A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS574320A (en) | 1982-01-09 |
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