WO2010136683A1 - Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile - Google Patents
Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile Download PDFInfo
- Publication number
- WO2010136683A1 WO2010136683A1 PCT/FR2010/050714 FR2010050714W WO2010136683A1 WO 2010136683 A1 WO2010136683 A1 WO 2010136683A1 FR 2010050714 W FR2010050714 W FR 2010050714W WO 2010136683 A1 WO2010136683 A1 WO 2010136683A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shoulders
- stamping
- sheet
- boss
- punching
- Prior art date
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Definitions
- the present invention relates to a method for stamping on a sheet metal two surfaces bounded to one another by two shoulders extending transversely with respect to one another and being connected to one another.
- the invention also relates to the application of the method according to the invention to the stamping of a sheet metal element of the body of a motor vehicle and more particularly, the stamping of the lower zone of the amount of bay of a cockpit side of the body of a motor vehicle.
- Figure 1 shows a partial plan view of a cockpit side of the body of a motor vehicle.
- the zone 1 surrounded by dots is the lower zone of the amount of bay 2 of the windshield of the cockpit side 3.
- FIG. 2 is a sectional view on an enlarged scale along the plane N-II of FIG.
- Zone 1 of FIG. 1 is a zone stamped on a metal sheet which has two surfaces 4, 5 limited to one another by two shoulders 6 and 7. One of these two shoulders is shown in FIG. 2. A first surface 4 is connected to the upper edge of each of the two shoulders 6, 7 and the second surface 5 is connected to the lower edge of each of the two shoulders 6, 7.
- a first stamping is carried out in which the shoulders 6, 7 are connected to the surface 5 by a radius of curvature R ( see Figure 2) relatively important.
- a second so-called calibration stamping is then performed in which the aforementioned radius of curvature is reduced, as shown in dashed lines in FIG.
- connection area between the two shoulders 6, 7 and the surface 5 of the sheet is stretched so that the sheet may tear.
- the object of the present invention is to provide a simple solution to the problem above.
- This object is achieved, according to the invention, by means of a method for stamping on a sheet two surfaces bounded by two shoulders extending transversely with respect to one another and connecting with each other , a first surface of the sheet being connected to the upper edge of each of the two shoulders and a second surface of the sheet being connected to the lower edge of each of these two shoulders, in which method, a first stamping is carried out, then a second calibration embossing to reduce the radius of curvature between each of the two shoulders and the second surface of the sheet, characterized in that during the first stamping, a boss is pressed on the second surface in the connection zone between the two shoulders; to locally reduce the depth of stamping.
- This boss preferably has a rounded surface projecting on the second surface of the sheet.
- said boss overflows on either side of the bisecting plane of the dihedron formed by the two shoulders.
- said boss is connected to each of said shoulders by an area raised relative to the connection area between the second surface of the sheet and each of said shoulders.
- said boss includes a volume of sheet material which substantially compensates for the volume of sheet material which is stretched due to the reduction of the radius of curvature achieved during the second sizing.
- the method according to the invention can be applied to the stamping of a sheet metal element of the body of a motor vehicle and in particular to the stamping of the lower zone of the amount of bay on one side of the passenger compartment of the body of a motor vehicle.
- FIG. 3 is a perspective view showing the projection made according to the invention, during the first stamping of the sheet
- FIG. 4 is an enlarged perspective view of the boss shown in FIG. 2.
- FIG. 3 shows an enlarged scale of the embossed area 1 of FIG.
- the stamped sheet has, as in FIG. 1, two surfaces 4, 5 limited to one another by two shoulders 6, 7 extending transversely with respect to each other and being connected to one another.
- a first surface 4 of the sheet is connected to the upper edge of each of the two shoulders 6, 7 and a second surface 5 of the sheet is connected to the lower edge of each of these two shoulders, 6, 7.
- the method according to the invention consists in carrying out a first stamping, then a second stamping to reduce the radius of curvature between each of the two shoulders 6, 7 and the second surface 5 of the sheet.
- a boss 8 for locally reducing the depth of stamping is stamped on the second surface 5, in the connection area between the two shoulders 6, 7, a boss 8 for locally reducing the depth of stamping.
- This boss 8 has a rounded surface projecting on the second surface
- this boss 8 overflows on both sides of the bisector plane P of the dihedron formed by the two shoulders 6 and 7.
- this boss 8 is connected to each of the shoulders 6, 7 by an elevated zone 9 with respect to the connection zone 6a, 7a between the second surface 5 of the sheet and each of the shoulders 6, 7.
- FIGS. 3 and 4 also show that the boss 8 has the general shape of a bean whose contour has a curve 8a whose concavity is directed towards the connection zone between the two shoulders 6, 7 and a curve 8b of which the convexity is directed towards the outside of the shoulders 6, 7.
- Figure 4 shows two lines L1 and L2 each corresponding with the intersection between the outer surface of the sheet and the bisector plane P defined above.
- Line L1 shown in dashed lines is that obtained during the first stamping.
- This line L1 shows because of the presence of the boss 8 that in the connection area between the two shoulders 6, 7, the depth of the stamping is lower than in the adjacent areas 6a, 7a.
- Line L2 shows that after the second stamping, the boss 8 has disappeared, the drawing depth is in the connection zone between the two shoulders 6, 7 equal to the drawing depth in the adjacent areas 6a, 7a. Moreover, the radius of curvature between the shoulders 6, 7 and the surface 5 has been reduced.
- the extent of the boss 8 is a function of the reserve of material that must be constituted to prevent the appearance of crack or tear.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Body Structure For Vehicles (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Punching Or Piercing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10723668A EP2435197A1 (fr) | 2009-05-27 | 2010-04-13 | Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile |
BRPI1007748-0A BRPI1007748B1 (pt) | 2009-05-27 | 2010-04-13 | Método de estampagem de um elemento de chapa metálica, aplicação do mesmo, em particular, na carroceria de um veículo automotivo |
RU2011153316/02A RU2534650C2 (ru) | 2009-05-27 | 2010-04-13 | Способ штамповки элемента из листового металла, в частности рамы автомобиля |
CN201080022759.XA CN102448634B (zh) | 2009-05-27 | 2010-04-13 | 冲压金属板元件的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0953479 | 2009-05-27 | ||
FR0953479A FR2945971B1 (fr) | 2009-05-27 | 2009-05-27 | Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010136683A1 true WO2010136683A1 (fr) | 2010-12-02 |
Family
ID=41718575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/050714 WO2010136683A1 (fr) | 2009-05-27 | 2010-04-13 | Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2435197A1 (fr) |
CN (1) | CN102448634B (fr) |
BR (1) | BRPI1007748B1 (fr) |
FR (1) | FR2945971B1 (fr) |
RU (1) | RU2534650C2 (fr) |
WO (1) | WO2010136683A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103480755A (zh) * | 2012-06-14 | 2014-01-01 | 苏州工业园区高登威科技有限公司 | 工件的多次冲压固定方法 |
FR3031322B1 (fr) * | 2015-01-06 | 2017-01-13 | Peugeot Citroen Automobiles Sa | Mise a forme d’un bord d’embouti avec renvoi en contre-depouille |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19835998A1 (de) * | 1998-08-08 | 2000-02-10 | Volkswagen Ag | Dichtkanal für eine Tür- oder Heckklappenöffnung bzw. Verfahren zu dessen Herstellung |
EP1375682A1 (fr) * | 2001-03-28 | 2004-01-02 | Neturen Co., Ltd. | Procede de production de pieces a bride, dispositif et procede de traitement thermique |
FR2849059A1 (fr) * | 2002-12-23 | 2004-06-25 | Peugeot Citroen Automobiles Sa | Procede et dispositif de traitement thermique local d'une piece metallique et piece metallique obtenue par un tel procede. |
EP1818115A1 (fr) * | 2006-02-08 | 2007-08-15 | Benteler Automobiltechnik GmbH | Procédé de fabrication d'un élément structurel ou de châssis pour véhicules automobiles et élément structurel ou de chassis |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1484407A1 (ru) * | 1987-06-10 | 1989-06-07 | Волжское объединение по производству легковых автомобилей | Штамп дл выт жки деталей сложной формы в плане |
SU1731357A1 (ru) * | 1990-04-09 | 1992-05-07 | Волжское объединение по производству легковых автомобилей "АвтоВАЗ" | Способ торможени фланца листовой заготовки в процессе выт жки |
DE102007018705A1 (de) * | 2007-04-18 | 2008-10-23 | Viessmann Werke Gmbh & Co Kg | Brennstoffzellenanlage und Verfahren zum Betrieb einer Brennstoffzellenanlage |
CN101337251A (zh) * | 2007-07-04 | 2009-01-07 | 西德科东昌汽车座椅技术有限公司 | 轿车座椅靠背头枕板的冲压制造方法 |
-
2009
- 2009-05-27 FR FR0953479A patent/FR2945971B1/fr active Active
-
2010
- 2010-04-13 WO PCT/FR2010/050714 patent/WO2010136683A1/fr active Application Filing
- 2010-04-13 EP EP10723668A patent/EP2435197A1/fr not_active Withdrawn
- 2010-04-13 RU RU2011153316/02A patent/RU2534650C2/ru active
- 2010-04-13 CN CN201080022759.XA patent/CN102448634B/zh not_active Expired - Fee Related
- 2010-04-13 BR BRPI1007748-0A patent/BRPI1007748B1/pt active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19835998A1 (de) * | 1998-08-08 | 2000-02-10 | Volkswagen Ag | Dichtkanal für eine Tür- oder Heckklappenöffnung bzw. Verfahren zu dessen Herstellung |
EP1375682A1 (fr) * | 2001-03-28 | 2004-01-02 | Neturen Co., Ltd. | Procede de production de pieces a bride, dispositif et procede de traitement thermique |
FR2849059A1 (fr) * | 2002-12-23 | 2004-06-25 | Peugeot Citroen Automobiles Sa | Procede et dispositif de traitement thermique local d'une piece metallique et piece metallique obtenue par un tel procede. |
EP1818115A1 (fr) * | 2006-02-08 | 2007-08-15 | Benteler Automobiltechnik GmbH | Procédé de fabrication d'un élément structurel ou de châssis pour véhicules automobiles et élément structurel ou de chassis |
Also Published As
Publication number | Publication date |
---|---|
FR2945971A1 (fr) | 2010-12-03 |
CN102448634B (zh) | 2014-08-20 |
RU2011153316A (ru) | 2013-07-10 |
RU2534650C2 (ru) | 2014-12-10 |
FR2945971B1 (fr) | 2011-05-13 |
CN102448634A (zh) | 2012-05-09 |
EP2435197A1 (fr) | 2012-04-04 |
BRPI1007748B1 (pt) | 2020-01-07 |
BRPI1007748A2 (pt) | 2016-02-16 |
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