JPS5645219A - Forming method for three dimensionally curved sheet - Google Patents
Forming method for three dimensionally curved sheetInfo
- Publication number
- JPS5645219A JPS5645219A JP12151379A JP12151379A JPS5645219A JP S5645219 A JPS5645219 A JP S5645219A JP 12151379 A JP12151379 A JP 12151379A JP 12151379 A JP12151379 A JP 12151379A JP S5645219 A JPS5645219 A JP S5645219A
- Authority
- JP
- Japan
- Prior art keywords
- blank
- sheet
- dimensionally curved
- pressed
- dimensionally
- 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
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To form the three dimensionally curved sheet with the improved product accuracy by the simplified forming work, by first bending the flat sheet into a cylindrical shape, by taking the blank sheet from this curved sheet, ans by three dimensionally curving this blank.
CONSTITUTION: The flat sheet 1 is prepared in the size inclusive of the successively laid blanks 2a, whose shape is obtained by developing the three dimensionally curved surface into the flat plane, and the spare length 2b on both ends; this flat sheet 1 is pressed between the male die 3 and the female die 4 and is formed into a cylindrical shape (the first step). Next, the blank 2a is cut out of the cylinder, and is pressed by the male die 5 and the female die 6 and hereby is three dimensionally curved (the second step). Then, the pad 7 is put to the three dimensionally curved blank 2a, and the both ends of the blank 2a are pressed by the simply constituted pushers 8; by changing the height of the wedges 9 for adjusting the droop of the sheet end, the forming work is completed. According to the presnet method, the spare length 2a is not required for every blank 2a in performing the three dimensional forming work, so that the material yield is improved, and besides, since the adjustment of the droop is attained by the pusher 8, the expensive die is unnecessary.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12151379A JPS5645219A (en) | 1979-09-20 | 1979-09-20 | Forming method for three dimensionally curved sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12151379A JPS5645219A (en) | 1979-09-20 | 1979-09-20 | Forming method for three dimensionally curved sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5645219A true JPS5645219A (en) | 1981-04-24 |
Family
ID=14813056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12151379A Pending JPS5645219A (en) | 1979-09-20 | 1979-09-20 | Forming method for three dimensionally curved sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5645219A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6176689A (en) * | 1984-09-21 | 1986-04-19 | Nec Corp | Production of floating head slider |
| JPH0569127A (en) * | 1991-09-12 | 1993-03-23 | Hitachi Ltd | Manufacture of steel plate component |
| US7295788B2 (en) | 2004-04-26 | 2007-11-13 | Ricoh Company, Ltd. | Image forming apparatus and process cartridge |
| US7718335B2 (en) | 2005-12-27 | 2010-05-18 | Ricoh Company Limited | Image bearing member, and image forming apparatus and process cartridge using the same |
| US8507163B2 (en) | 2008-12-11 | 2013-08-13 | Ricoh Company, Ltd. | Method of manufacturing image bearing member, image bearing member, and image forming apparatus |
| CN104307952A (en) * | 2014-08-19 | 2015-01-28 | 深圳先进技术研究院 | Curved steel plate forming method and curved steel plate forming equipment |
| US20150360272A1 (en) * | 2013-01-21 | 2015-12-17 | Jfe Steel Corporation | Method for manufacturing metal component with three-dimensional edge and die sets for manufacturing the same |
-
1979
- 1979-09-20 JP JP12151379A patent/JPS5645219A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6176689A (en) * | 1984-09-21 | 1986-04-19 | Nec Corp | Production of floating head slider |
| JPH0569127A (en) * | 1991-09-12 | 1993-03-23 | Hitachi Ltd | Manufacture of steel plate component |
| US7295788B2 (en) | 2004-04-26 | 2007-11-13 | Ricoh Company, Ltd. | Image forming apparatus and process cartridge |
| US7718335B2 (en) | 2005-12-27 | 2010-05-18 | Ricoh Company Limited | Image bearing member, and image forming apparatus and process cartridge using the same |
| US8507163B2 (en) | 2008-12-11 | 2013-08-13 | Ricoh Company, Ltd. | Method of manufacturing image bearing member, image bearing member, and image forming apparatus |
| US20150360272A1 (en) * | 2013-01-21 | 2015-12-17 | Jfe Steel Corporation | Method for manufacturing metal component with three-dimensional edge and die sets for manufacturing the same |
| US10029293B2 (en) * | 2013-01-21 | 2018-07-24 | Jfe Steel Corporation | Method for manufacturing metal component with three-dimensional edge and die sets for manufacturing the same |
| US20180281043A1 (en) * | 2013-01-21 | 2018-10-04 | Jfe Steel Corporation | Method for manufacturing metal component with three-dimensional edge and die sets for manufacturing the same |
| US10500625B2 (en) | 2013-01-21 | 2019-12-10 | Jfe Steel Corporation | Method for manufacturing metal component with three-dimensional edge and die sets for manufacturing the same |
| CN104307952A (en) * | 2014-08-19 | 2015-01-28 | 深圳先进技术研究院 | Curved steel plate forming method and curved steel plate forming equipment |
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