JPS56117831A - Bending method - Google Patents
Bending methodInfo
- Publication number
- JPS56117831A JPS56117831A JP2078080A JP2078080A JPS56117831A JP S56117831 A JPS56117831 A JP S56117831A JP 2078080 A JP2078080 A JP 2078080A JP 2078080 A JP2078080 A JP 2078080A JP S56117831 A JPS56117831 A JP S56117831A
- Authority
- JP
- Japan
- Prior art keywords
- bending
- die
- sheet thickness
- sheet
- warp
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To prevent the warp which is produced in the case of a particularly high tensile sheet steel by making the radius of a die bending shoulder part and the clearance of a punch and a die respectively specific times the sheet thickness at the time of forming the sheet to a hat type sectional shape by using U-shaped bending dies.
CONSTITUTION: In the case of forming blank material 19 to a hat type sectional shape by opening U-shaped bending dies, the radius of the bending shoulder part of a die 16 is taken at 1W2.5 times the sheet thickness and the clearance between a punch 15 and the die 16 is set at 1.0W1.4 times the sheet thickness. Then, light bending reverse to the warp is applied in one process without requiring surplus number of steps at the bending and therefore the molding having no camber is obtained easily.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2078080A JPS56117831A (en) | 1980-02-20 | 1980-02-20 | Bending method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2078080A JPS56117831A (en) | 1980-02-20 | 1980-02-20 | Bending method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56117831A true JPS56117831A (en) | 1981-09-16 |
JPS6260166B2 JPS6260166B2 (en) | 1987-12-15 |
Family
ID=12036643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2078080A Granted JPS56117831A (en) | 1980-02-20 | 1980-02-20 | Bending method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56117831A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61133216U (en) * | 1985-02-07 | 1986-08-20 | ||
JPS62134123A (en) * | 1985-12-07 | 1987-06-17 | Toupure Kk | Correcting method for deformation of press formed part |
US5501094A (en) * | 1992-12-28 | 1996-03-26 | Fuji Photo Film Co., Ltd. | Method for bending a metal thin plate |
JP2006272378A (en) * | 2005-03-28 | 2006-10-12 | Jfe Steel Kk | Press formed article of metallic sheet, and press working method and press die for metallic sheet |
JP2009022154A (en) * | 2007-06-14 | 2009-01-29 | Honda Motor Co Ltd | Method for forming meander wound coil |
JP2010284674A (en) * | 2009-06-10 | 2010-12-24 | Nippon Steel Corp | Method of press-forming formed article excellent in dimensional accuracy |
WO2014042067A1 (en) * | 2012-09-12 | 2014-03-20 | 新日鐵住金株式会社 | Method for producing curved article and skeleton structure member for automobile body shell |
KR20210089738A (en) * | 2018-12-12 | 2021-07-16 | 제이에프이 스틸 가부시키가이샤 | Press forming method |
US11833564B2 (en) | 2021-08-20 | 2023-12-05 | Honda Motor Co., Ltd. | Forming apparatus and forming method using forming apparatus |
FR3142365A1 (en) * | 2022-11-28 | 2024-05-31 | Valeo Systemes Thermiques | Stamped metal part and method of manufacturing such a part |
-
1980
- 1980-02-20 JP JP2078080A patent/JPS56117831A/en active Granted
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61133216U (en) * | 1985-02-07 | 1986-08-20 | ||
JPS62134123A (en) * | 1985-12-07 | 1987-06-17 | Toupure Kk | Correcting method for deformation of press formed part |
US5501094A (en) * | 1992-12-28 | 1996-03-26 | Fuji Photo Film Co., Ltd. | Method for bending a metal thin plate |
JP2006272378A (en) * | 2005-03-28 | 2006-10-12 | Jfe Steel Kk | Press formed article of metallic sheet, and press working method and press die for metallic sheet |
JP2009022154A (en) * | 2007-06-14 | 2009-01-29 | Honda Motor Co Ltd | Method for forming meander wound coil |
JP2010284674A (en) * | 2009-06-10 | 2010-12-24 | Nippon Steel Corp | Method of press-forming formed article excellent in dimensional accuracy |
WO2014042067A1 (en) * | 2012-09-12 | 2014-03-20 | 新日鐵住金株式会社 | Method for producing curved article and skeleton structure member for automobile body shell |
CN104582870A (en) * | 2012-09-12 | 2015-04-29 | 新日铁住金株式会社 | Method for producing curved article and skeleton structure member for automobile body shell |
JP5733475B2 (en) * | 2012-09-12 | 2015-06-10 | 新日鐵住金株式会社 | Method for manufacturing curved part and apparatus for manufacturing curved part |
CN104582870B (en) * | 2012-09-12 | 2016-09-28 | 新日铁住金株式会社 | The manufacture method of bending parts and the framing structure component of the bodyshell of automobile |
US10179360B2 (en) | 2012-09-12 | 2019-01-15 | Nippon Steel & Sumitomo Metal Corporation | Method for producing curved part, and skeleton structure member of body shell of automobile |
KR20210089738A (en) * | 2018-12-12 | 2021-07-16 | 제이에프이 스틸 가부시키가이샤 | Press forming method |
EP3895824A4 (en) * | 2018-12-12 | 2022-01-19 | JFE Steel Corporation | Press forming method |
US11833564B2 (en) | 2021-08-20 | 2023-12-05 | Honda Motor Co., Ltd. | Forming apparatus and forming method using forming apparatus |
FR3142365A1 (en) * | 2022-11-28 | 2024-05-31 | Valeo Systemes Thermiques | Stamped metal part and method of manufacturing such a part |
Also Published As
Publication number | Publication date |
---|---|
JPS6260166B2 (en) | 1987-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5550927A (en) | Production of semicircular washers with pawls | |
JPS56117831A (en) | Bending method | |
GR62648B (en) | A process for producing a strong and water resistant bend between metal and polysulphide material and articles obtained by this method | |
JPS5722825A (en) | Forming method of pressure vessel head | |
JPS5714440A (en) | Method and device for production of product having tooth profile | |
JPS5429180A (en) | Method of producing retainer | |
JPS5597832A (en) | Press forming method | |
JPS5545546A (en) | Production of sheet metal pulley | |
JPS5462161A (en) | Forming method for pipe | |
JPS5419438A (en) | Method of producing decorative metal plate | |
SU719747A1 (en) | Method of flanging holes | |
JPS566750A (en) | Production of irregular shape metal strip | |
JPS56126033A (en) | Production of blanked core | |
JPS53137259A (en) | Forming composite vessel and mold for the same | |
JPS5633932A (en) | Plastic molding having a inclined surface for carrying and method of producing thereof | |
JPS5588942A (en) | Rolling method of shape section bar and plate | |
SU1098619A1 (en) | Method of making flanged holes | |
JPS55147427A (en) | End plate forming method | |
JPS5428758A (en) | Method of manufacturing thick steel plate | |
JPS6444225A (en) | Cold bulging method for resin laminated aluminum foil | |
SU377188A1 (en) | METHOD FOR PRODUCING PRODUCTS FROM POWDER | |
GB1341730A (en) | Method of producing apertured panels from sheet material | |
JPS5785624A (en) | Manufacture of press die | |
JPS55135614A (en) | Production of plastic forming die | |
JPS5689338A (en) | Production of dial plate and panel cover for timepiece having multiple patterns |