JPS5744420A - Roll forming method for metallic sheet - Google Patents
Roll forming method for metallic sheetInfo
- Publication number
- JPS5744420A JPS5744420A JP12022580A JP12022580A JPS5744420A JP S5744420 A JPS5744420 A JP S5744420A JP 12022580 A JP12022580 A JP 12022580A JP 12022580 A JP12022580 A JP 12022580A JP S5744420 A JPS5744420 A JP S5744420A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- work
- forming
- roll
- bending
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/08—Bending by altering the thickness of part of the cross-section of the work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To reduce the strain caused by the forming work, and to perform an accurate roll-forming process, by forming a V-groove along the inner surface of a bending part of a metallic sheet, and by applying a bending work after finishing a drilling work for a hole.
CONSTITUTION: A V-groove 5 is formed at a bending part of a flat blank sheet 4, and a drilling work for a hole 6 is performed on this flat blank sheet 4 as it is. A roll-forming work is then applied to the blank sheet 4 for bending it as the V- groove 5 comes inside. According to the present method, the roll-forming work is practiced without causing any deformation in the hole 6. Hereupon, in case of making the depth of the V-goove 5 a 1/2 of the sheet thickness T, for example, even if the hole 6 is bored as closely to the bending part as A=2T, the deformation of the hole 6 is prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12022580A JPS5744420A (en) | 1980-08-29 | 1980-08-29 | Roll forming method for metallic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12022580A JPS5744420A (en) | 1980-08-29 | 1980-08-29 | Roll forming method for metallic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5744420A true JPS5744420A (en) | 1982-03-12 |
Family
ID=14780964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12022580A Pending JPS5744420A (en) | 1980-08-29 | 1980-08-29 | Roll forming method for metallic sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5744420A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05283118A (en) * | 1992-03-28 | 1993-10-29 | Nippon Seiki Co Ltd | Electric connecting device |
| US5277357A (en) * | 1991-05-16 | 1994-01-11 | Shinko Electric Industries Co., Ltd. | Process for making a metal wall of a package used for accommodating electronic elements |
| FR2712123A1 (en) * | 1992-08-17 | 1995-05-12 | Loh Rittal Werk Gmbh Co | Profiled chassis for a rack of an electrical cabinet |
| EP0726102A1 (en) * | 1995-02-13 | 1996-08-14 | Sjoerd Meijer | Method for deforming a plate and plate suitable therefor |
| NL9500263A (en) * | 1995-02-13 | 1996-09-02 | Sjoerd Meijer | Process for deforming a metal sheet, and a metal sheet which is suitable for this process |
| US5890288A (en) * | 1997-08-21 | 1999-04-06 | Ford Motor Company | Method for making a heat exchanger tube |
| US5934365A (en) * | 1997-08-21 | 1999-08-10 | Ford Motor Company | Heat exchanger |
| LU90919B1 (en) * | 2002-05-14 | 2003-11-17 | Delphi Tech Inc | Method and tool for folding a metal strip |
| JP2007260726A (en) * | 2006-03-28 | 2007-10-11 | Matsushita Electric Works Ltd | Method for manufacturing metallic siding |
| CN106140896A (en) * | 2016-07-18 | 2016-11-23 | 昆山市力勋达精密机械有限公司 | A kind of panel beating bending technique |
-
1980
- 1980-08-29 JP JP12022580A patent/JPS5744420A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277357A (en) * | 1991-05-16 | 1994-01-11 | Shinko Electric Industries Co., Ltd. | Process for making a metal wall of a package used for accommodating electronic elements |
| JPH05283118A (en) * | 1992-03-28 | 1993-10-29 | Nippon Seiki Co Ltd | Electric connecting device |
| FR2712123A1 (en) * | 1992-08-17 | 1995-05-12 | Loh Rittal Werk Gmbh Co | Profiled chassis for a rack of an electrical cabinet |
| EP0726102A1 (en) * | 1995-02-13 | 1996-08-14 | Sjoerd Meijer | Method for deforming a plate and plate suitable therefor |
| NL9500263A (en) * | 1995-02-13 | 1996-09-02 | Sjoerd Meijer | Process for deforming a metal sheet, and a metal sheet which is suitable for this process |
| US5890288A (en) * | 1997-08-21 | 1999-04-06 | Ford Motor Company | Method for making a heat exchanger tube |
| US5934365A (en) * | 1997-08-21 | 1999-08-10 | Ford Motor Company | Heat exchanger |
| LU90919B1 (en) * | 2002-05-14 | 2003-11-17 | Delphi Tech Inc | Method and tool for folding a metal strip |
| EP1362649A1 (en) * | 2002-05-14 | 2003-11-19 | Delphi Technologies, Inc. | Method and tool for folding a metal strip |
| JP2007260726A (en) * | 2006-03-28 | 2007-10-11 | Matsushita Electric Works Ltd | Method for manufacturing metallic siding |
| CN106140896A (en) * | 2016-07-18 | 2016-11-23 | 昆山市力勋达精密机械有限公司 | A kind of panel beating bending technique |
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