WO1999020411A1 - Draw stamping die for stamping body panels for motor vehicles - Google Patents
Draw stamping die for stamping body panels for motor vehicles Download PDFInfo
- Publication number
- WO1999020411A1 WO1999020411A1 PCT/CA1998/000963 CA9800963W WO9920411A1 WO 1999020411 A1 WO1999020411 A1 WO 1999020411A1 CA 9800963 W CA9800963 W CA 9800963W WO 9920411 A1 WO9920411 A1 WO 9920411A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- die
- sheet metal
- sheet
- central
- assembly
- 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
- B21D22/02—Stamping using rigid devices or tools
-
- 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
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
Definitions
- the present invention relates to stamping dies and methods for stamping sheet metal to for outer body panels for motor vehicles. Background of Invention
- a die assembly for draw stamping sheet metal in a press for forming an exterior body panel for a motor vehicle.
- the die assembly comprises a first die assembly including a central first die structure that engages one surface of the sheet metal during a stamping operation.
- the first die assembly further includes a movable peripheral clamping structure which is movable with respect to the first die structure and constructed and arranged to engage first peripheral portion of the sheet metal.
- a second die assembly is provided and includes a second die structure having a central stamping surface that engages an opposite surface of the sheet metal during the stamping operation.
- the second die structure includes a peripheral clamping surface constructed and arranged to cooperate with the movable clamping structure to clamp the first peripheral portion of the sheet metal therebetween.
- the second die assembly further includes a movable die pad which is movable with respect to the second die structure.
- the movable die pad is cooperable with the first die structure to clamp second peripheral portion of the sheet metal therebetween.
- the second die assembly is movable by a press so that the peripheral clamping surface thereof cooperates with the movable clamping structure of the first die assembly to clamp the first peripheral portion of the sheet metal therebetween.
- the peripheral clamping surface and the movable clamping structure are moved with the first portions of sheet metal clamped therebetween to deform the sheet metal over the central first die structure.
- the movable die pad is movable relative to the second die structure and towards the first die structure so as to clamp the second portions of the sheet metal between the movable die pad and the first die structure after the sheet metal is deformed over the central first die structure.
- the peripheral clamping surface and the movable clamping structure can be moved to stretch the sheet metal over the central first die structure, and the central stamping surface is cooperable with the central first die structure of the second die structure to stamp the sheet metal therebetween after the sheet metal has been stretched over the central first die structure so as to provide the sheet metal with a desired configuration.
- a method for forming exterior body panels for a motor vehicle comprising mounting a sheet of metal material in a die assembly, clamping first peripheral portion of the sheet of metal material between clamping surfaces of the die assembly, moving the clamping surfaces relative to a central die structure so as to deform the sheet metal over the central die structure, clamping second peripheral portion of the sheet of metal material between a die pad of the die assembly and the central die structure after the sheet metal is deformed over the central die structure, moving the clamping surfaces relative to the central die structure to stretch the sheet metal over the central die structure after the second peripheral portion of the sheet of metal material are clamped, and stamping the sheet of metal material between the central structure and an opposing die surface after the sheet metal has been stretched over the die structure so as to provide the sheet metal with a desired configuration.
- Figure 1 is a perspective view of a sheet metal forming assembly showing an upper and lower die structure with a sheet metal blank to be formed therebetween in accordance with
- Figure 2 is a partial sectional view of the sheet metal forming assembly showing the upper die structure raised above the lower die structure and the sheet metal resting along the movable peripheral portion of the lower die structure;
- Figure 3 is a partial sectional view similar to Figure 2, but showing the upper die structure in a lowered position wherein it locks three peripheral sides of the sheet metal;
- Figure 4 is a partial sectional view similar to Figure 3, but showing a movable die pad assembly of the upper die structure locking the sheet metal in place along the fourth peripheral side;
- Figure 5 is a partial sectional view similar to Figure 4, but showing the upper die structure in a fully lowered configuration wherein the sheet metal is stretched and stamped into its desire configuration;
- Figure 6 is a partial sectional view which is taken orthogonally with respect to the sectional views of Figures 2-5, taken through the line 6-6 in Figure 5, and showing the full length of the die pad assembly of the upper die structure;
- Figure 7 is a perspective view of an exterior body panel forming the exterior side surface of a rear box for a pick-up truck which has been formed in accordance with the present invention.
- Figure 8 is a cross-sectional view taken through the line 8-8 in Figure 7, and showing the position of this section in relation to the stamped sheet metal.
- the sheet metal forming die assembly 10 (known as a deep draw assembly) includes first and second die assemblies.
- the first die assembly is a lower die assembly 14, and the second die assembly is an upper die assembly 12 which cooperate to form the metal sheet material 16 positioned therebetween.
- the sheet metal blank 16 has a substantially four-sided, rectangular configuration. It should be appreciated, however, that the present invention is not limited to sheet metal blanks of such configuration.
- the upper die assembly 12 is mounted in a conventional hydraulic of press (not shown) to enable upwards and downwards movement of the upper die assembly 12.
- the lower die assembly 14 includes a lower horizontal support member or die shoe 22.
- a fixed dome-shaped central portion or die structure 24 of the lower die assembly 14 is carried by the lower die shoe 22.
- the fixed central die structure 24 has an upwardly facing die surface 26 in accordance with the desired shape of the sheet metal 16.
- a movable peripheral portion or clamping structure 28 of lower die assembly 14 surrounds the fixed central die structure 24 and 5 is mounted on pneumatic spring members 30 extending upwardly from the lower die shoe 22.
- the spring members 30 bias the peripheral clamping structure 28 in an upwards direction.
- the movable peripheral clamping structure 28 has an upper surface 29, which is disposed slightly higher than the upper surface 26 of the structure 24 when the assembly is at rest (e.g. in Figures 1 and 2).
- hardened steal wear plates 32 provided at the interface between the movable peripheral clamping structure 28 and the fixed central die structure 24 serve to provide conventional guide and wear surfaces.
- the periphery of the sheet metal 16 is mounted onto the upper surface 29 of the movable peripheral clamping structure 28. More specifically, as can be appreciated from Figure 1, the upper surface 29 has three upwardly facing peripheral surface areas
- a fourth peripheral surface area 37 extends beyond the adjacent edge of the sheet metal 16 when the sheet metal 16 is properly mounted in the assembly 10.
- a groove 38 is formed in the aforementioned three surface areas 34, 35, and 36 of the movable peripheral clamping structure 28.
- the upper die assembly 12 has a peripheral portion
- the peripheral portion 44 has a downwardly facing peripheral clamping surface 42 which forms a raised locking bead 40.
- the bead 40 is provided along three surface areas of the upper peripheral clamping surface 42 which are constructed and arranged to engage the three surface areas 34, 35, and 36 of the movable peripheral clamping structure 28.
- the bead 40 is disposed directly above the groove 38 and has substantially the same shape.
- the central portion 48 of upper die assembly 12 has a downwardly facing upper die stamping surface 50 surrounded by a vertical peripheral surface 52.
- the upper die surface 50 and lower die surface 26 have substantially inverted configuration with respect to one another so that the upper die surface 50 cooperates with the lower die surface 26 to stamp and form the central portion of the sheet metal material 16 therebetween when the upper die assembly 12 is lowered (e.g., see Figure 5).
- the upper die assembly 12 comprises a main upper die structure 13 an independently movable upper die pad assembly generally shown at 54. More specifically, the movable upper die pad assembly 54 is received within a recess 55 in central portion 48 of the upper die structure 13.
- the movable upper die pad assembly 54 is attached to upper die structure 13 by means of an upper mounting plate 56.
- pneumatic cylinder members, preferably nitrogen spring cylinders, 58 are directly attached to the upper mounting plate 56 and extend vertically downwardly therefrom.
- Each pneumatic cylinder 58 comprises an upper cylinder portion 60 that telescopically receives a piston rod 62.
- the lower end of the piston rod 62 is attached to a pressure plate 64.
- the pressure plate 64 is attached interiorally to an inner surface 76 of the base 72 and forms the interconnection between the cylinders 58 and the die pad element 66.
- the parallel walls 68 and 70 of the movable die pad element 66 have wear plates 78 along their outer surfaces which cooperate with wear plates 80 along the surfaces defining the recess
- the movable pad element 66 includes a lower die surface 86 which includes a raised locking bead 88.
- the locking bead 88 is positioned directly above a longitudinal groove 90 that is formed along the upper surface 26 of fixed die structure 24 at a position adjacent the fourth surface area 37 of the movable peripheral clamping structure 28 of the lower die assembly.
- the groove 90 is disposed under a peripheral side portion of the sheet metal 16 adjacent edge 33 and cooperates with the locking bead 88 to lock the aforementioned peripheral position of the sheet metal 16 therebetween as will be described in greater detail later.
- the pad element 66 engages and clamps the fourth portion adjacent edge 33 of sheet metal 16 against the upper surface 26 of the fixed central die member 24 ash shown in Figure 4. This locking or clamping of the fourth peripheral portion of sheet metal 16 is facilitated by the cooperating locking bead 88 and groove 90.
- the movable die pad element 66 engages the peripheral portion adjacent edge 33 of the sheet metal 16 which is formed into a portion of the final stamped product which is not provided with any significant structural depth, and in any event, less structural depth than the other three edge portions 31, and thus need not be stretched to any significant extent.
- the locking bead 88 and groove 90 arrangement and the locking bead 40 and groove 38 arrangement operate such that stretching of the central portion of sheet metal 16 over fixed die structure 24 is substantially limited to portions of the sheet metal within the four line boundaries defined by these locking beads and grooves.
- continued lowering of the upper die assembly 12 and lower peripheral clamping structure 28 causes continued stretching of the sheet metal 16 until the upper central die surface 50 and vertical peripheral surface 52 move downwardly into engagement with the upper surface of the metal sheet 16.
- cylinders 58 are compressed, with rod 62 extending into cylindrical portion 60 against the outward bias thereof to further enhance the gripping force applied by pad 66.
- the die surfaces stamp the sheet metal 16 and provide a final form for the sheet metal structure.
- the stretching of the sheet metal during the draw operation results in work hardening of the metal material to enhance the strength thereof.
- the present invention provides a die assembly 10 for draw stamping sheet metal 16 in a press for forming an exterior body panel for a motor vehicle.
- the die assembly includes a first die assembly 14 including a central first die structure 24 constructed and arranged to engage one surface of the sheet metal during a stamping operation.
- the first die assembly 14 further includes a movable peripheral clamping structure 28 which is movable with respect to the first die structure
- the second die assembly 12 includes a second die structure 13 having a central stamping surface 50 constructed and arranged to engage an opposite surface of the sheet metal 16 during the stamping operation.
- the second die structure 13 includes a peripheral clamping surface 42 constructed and arranged to cooperate with the movable clamping structure 28 to clamp the first peripheral portion
- the second die assembly further includes a movable die pad assembly 54 which is movable with respect to the second die structure 13.
- the movable die pad assembly 54 is cooperable with the first die structure 24 to clamp second peripheral portion 33 of the sheet metal 16 therebetween.
- the first and second die assemblies 14 and 12, respectively, are constructed and arranged to be mounted in a press, the second die assembly 12
- peripheral clamping surface 42 cooperates with the movable clamping structure 28 of the first die assembly 14 to clamp the first peripheral portion 31 of the sheet metal 16 therebetween.
- the peripheral clamping surface 42 and the movable clamping structure 28 are moved with the first peripheral portion 31 of sheet metal clamped therebetween to deform the sheet metal 16 over the central first die structure 24.
- die pad assembly 54 is movable relative to the second die structure 13 and towards the first die structure 24 so as to clamp the second peripheral portion 33 of the sheet metal 16 between the movable die pad assembly 54 and the first die structure 24 after the sheet metal is deformed over the central first die structure 24.
- the peripheral clamping surface 42 and the movable clamping structure 28 are movable to stretch the sheet metal over the central first die structure 24.
- central stamping surface 50 is cooperable with the central first die structure 24 to stamp the sheet metal therebetween after the sheet metal has been stretched over the central first die structure 24 so as to provide the sheet metal with a desired configuration.
- FIG. 7 is a perspective view of a preferred exterior body panel made in accordance with the present invention.
- the body panel is in the form of a rear side panel generally indicated at
- the sheet metal is stamped or drawn, it is cut and formed into its final configuration. For example, a wheel opening 110 and an opening 112 for a rear light is formed.
- the front end portion of the panel 108 is formed into a flange 114, as can be appreciated from the cross-sectional view in Figure 8, taken through line 8-8 in Figure 7. It can be appreciated from Figure 8 that the flange 114 is formed by bending the end portion 116 of the sheet metal after it has been cut off along line 98. After the end portion 116 is bent into the desired configuration for the exterior panel for the rear box, the exterior surface 118 of the flange 114 is mated to a rear surface on the cab portion of a pick-up truck. The sheet metal is then painted in a conventional painting station, together with the rest of the vehicle.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU95254/98A AU9525498A (en) | 1997-10-16 | 1998-10-16 | Draw stamping die for stamping body panels for motor vehicles |
BR9812916-3A BR9812916A (en) | 1997-10-16 | 1998-10-16 | Matrix set for stamping by drawing sheet metal on a press to form an outer body panel for a motor vehicle, and process for forming an outer body panel for a motor vehicle |
DE69801114T DE69801114T2 (en) | 1997-10-16 | 1998-10-16 | DRAWING TOOL FOR PUNCHING VEHICLE BODY WALLS |
CA002304238A CA2304238C (en) | 1997-10-16 | 1998-10-16 | Draw stamping die for stamping body panels for motor vehicles |
EP98948636A EP1030751B1 (en) | 1997-10-16 | 1998-10-16 | Draw stamping die for stamping body panels for motor vehicles |
AT98948636T ATE202960T1 (en) | 1997-10-16 | 1998-10-16 | PULLING PUNCHING TOOL FOR PUNCHING VEHICLE BODY SIDES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6220797P | 1997-10-16 | 1997-10-16 | |
US60/062,207 | 1997-10-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999020411A1 true WO1999020411A1 (en) | 1999-04-29 |
Family
ID=22040905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1998/000963 WO1999020411A1 (en) | 1997-10-16 | 1998-10-16 | Draw stamping die for stamping body panels for motor vehicles |
Country Status (12)
Country | Link |
---|---|
US (1) | US6032504A (en) |
EP (1) | EP1030751B1 (en) |
AR (1) | AR013695A1 (en) |
AT (1) | ATE202960T1 (en) |
AU (1) | AU9525498A (en) |
BR (1) | BR9812916A (en) |
CA (1) | CA2304238C (en) |
DE (1) | DE69801114T2 (en) |
ES (1) | ES2163298T3 (en) |
PT (1) | PT1030751E (en) |
UY (1) | UY25210A1 (en) |
WO (1) | WO1999020411A1 (en) |
Cited By (4)
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---|---|---|---|---|
RU184876U1 (en) * | 2018-04-02 | 2018-11-13 | Акционерное общество "Производственное объединение "Завод имени Серго" | PLANT FOR MANUFACTURE U-SHAPED PRODUCTS FORMING FROM SHEET |
WO2019022634A1 (en) * | 2017-07-25 | 2019-01-31 | Общество С Ограниченной Ответственностью "Самер" (Ооо "Самер") | Sheet blank forming method and device for the implementation thereof |
RU2739057C1 (en) * | 2020-02-18 | 2020-12-21 | Акционерное общество "Производственное объединение "Завод имени Серго" | Method of making u-shaped articles by stamping from sheet, for example, front panel of home refrigerator door |
CN112475047A (en) * | 2020-11-19 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Automobile roof drawing die |
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AU5722299A (en) * | 1998-09-18 | 2000-04-10 | Cosma International Inc. | Bumper beam assembly and method |
AUPQ052199A0 (en) * | 1999-05-21 | 1999-06-17 | Wiltin Pty Ltd | Joining arrangements for structural members |
US7204906B2 (en) * | 2001-04-20 | 2007-04-17 | Dofasco Inc. | Method for laminating and forming a composite laminate in a single operation |
US6668612B2 (en) * | 2002-02-21 | 2003-12-30 | General Motors Corporation | Device for holding a sheet metal blank in a forming press |
DE10233008A1 (en) * | 2002-07-20 | 2004-02-12 | Nothelfer Gmbh | Process for material flow control when deep-drawing sheet metal and deep-drawing tool |
DE102004022666B4 (en) * | 2003-05-28 | 2023-03-16 | Schaeffler Technologies AG & Co. KG | stamping process |
US20060283130A1 (en) * | 2005-06-07 | 2006-12-21 | William Andrews | Structural members with gripping features and joining arrangements therefor |
US7594331B2 (en) * | 2005-11-05 | 2009-09-29 | Wiltin Pty. Ltd. | Method of production of joining profiles for structural members |
US20090293405A1 (en) * | 2005-11-05 | 2009-12-03 | Andrews William J | Method of production of joining profiles for structural members |
DE102006003268B4 (en) * | 2006-01-24 | 2008-02-07 | Ford Global Technologies, LLC, Dearborn | Method and thermoforming device for deep drawing metal sheets |
US20070209306A1 (en) * | 2006-03-08 | 2007-09-13 | Trakloc International, Llc | Fire rated wall structure |
US7765848B2 (en) * | 2006-04-14 | 2010-08-03 | Honda Motor Co., Ltd. | Press working method and press working apparatus |
DE112007002428T5 (en) * | 2006-10-17 | 2009-09-17 | Honda Motor Co., Ltd. | Press working method and press working apparatus |
US8118197B2 (en) * | 2007-06-18 | 2012-02-21 | Precision Valve Corporation | Method of making aerosol valve mounting cups and resultant cups |
US20090158580A1 (en) * | 2007-06-18 | 2009-06-25 | Precision Valve Corporation | Method of making aerosol valve mounting cups and resultant cups |
JP4483933B2 (en) * | 2007-11-21 | 2010-06-16 | トヨタ自動車株式会社 | Press molding method and press molding apparatus |
JP4781380B2 (en) * | 2008-03-28 | 2011-09-28 | 豊臣機工株式会社 | Press working apparatus and press working method |
US20100050729A1 (en) * | 2008-09-01 | 2010-03-04 | Rahul Kulkarni | Die assembly for use in an apparatus for forming a workpiece |
JP2010167480A (en) * | 2009-01-26 | 2010-08-05 | Honda Motor Co Ltd | Press-forming die and press-forming method |
US8061099B2 (en) * | 2009-05-19 | 2011-11-22 | Tsf Systems, Llc | Vertical deflection extension end member |
CA2695101C (en) | 2010-03-01 | 2012-10-16 | Honda Motor Co., Ltd. | Reducing waste in metal stamping processes and systems therefor |
US20110219926A1 (en) * | 2010-03-10 | 2011-09-15 | Stolle Machinery Company, Llc | Tooling assembly, blanking tool therefor and associated method |
US9149854B2 (en) | 2011-05-04 | 2015-10-06 | Fca Us Llc | Stamping apparatus |
JP5823745B2 (en) * | 2011-06-27 | 2015-11-25 | 本田技研工業株式会社 | Press molding method and press molding apparatus |
FR2983748B1 (en) * | 2011-12-08 | 2014-01-24 | Peugeot Citroen Automobiles Sa | PNEUMATIC ACTUATOR PADDING TOOL HAVING AN INTEGRATED AIR RESERVE |
KR101482395B1 (en) * | 2013-04-19 | 2015-01-13 | 주식회사 포스코 | Hot-press forming apparatus of coated steel and hot-press forming process using the same |
CN104889246B (en) * | 2015-05-18 | 2017-05-24 | 湖南湖大艾盛汽车技术开发有限公司 | Drawing die structure with double press materials feeding and punching method utilizing drawing die structure |
CN113617917B (en) * | 2021-07-20 | 2024-04-02 | 岚图汽车科技有限公司 | Forming method of forming die of aluminum hood inner plate |
CN113680903B (en) * | 2021-08-24 | 2023-08-22 | 北海博联科技有限公司 | Adjustable die machining mechanism with high clamping stability |
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US2064160A (en) * | 1931-12-19 | 1936-12-15 | Budd Edward G Mfg Co | Apparatus for die drawing large irregularly shaped sheet metal articles |
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JPS59163032A (en) * | 1983-03-09 | 1984-09-14 | Nissan Motor Co Ltd | Drawing die |
FR2646623A1 (en) * | 1989-05-03 | 1990-11-09 | Peugeot | Press tool for deep-drawing slightly shaped workpieces |
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CA890701A (en) * | 1972-01-18 | M. Williamson Floyd | Hydraulic structure for and method of deep drawing | |
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1998
- 1998-10-15 UY UY25210A patent/UY25210A1/en not_active Application Discontinuation
- 1998-10-15 US US09/172,680 patent/US6032504A/en not_active Expired - Lifetime
- 1998-10-16 WO PCT/CA1998/000963 patent/WO1999020411A1/en active IP Right Grant
- 1998-10-16 AT AT98948636T patent/ATE202960T1/en active
- 1998-10-16 AU AU95254/98A patent/AU9525498A/en not_active Abandoned
- 1998-10-16 ES ES98948636T patent/ES2163298T3/en not_active Expired - Lifetime
- 1998-10-16 AR ARP980105157A patent/AR013695A1/en not_active Application Discontinuation
- 1998-10-16 BR BR9812916-3A patent/BR9812916A/en not_active IP Right Cessation
- 1998-10-16 EP EP98948636A patent/EP1030751B1/en not_active Expired - Lifetime
- 1998-10-16 DE DE69801114T patent/DE69801114T2/en not_active Expired - Lifetime
- 1998-10-16 CA CA002304238A patent/CA2304238C/en not_active Expired - Lifetime
- 1998-10-16 PT PT80201122T patent/PT1030751E/en unknown
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019022634A1 (en) * | 2017-07-25 | 2019-01-31 | Общество С Ограниченной Ответственностью "Самер" (Ооо "Самер") | Sheet blank forming method and device for the implementation thereof |
RU2685624C2 (en) * | 2017-07-25 | 2019-04-22 | Общество с ограниченной ответственностью "Самер" | Method of sheet forging and differentiated pressure device of sheet forging press |
RU184876U1 (en) * | 2018-04-02 | 2018-11-13 | Акционерное общество "Производственное объединение "Завод имени Серго" | PLANT FOR MANUFACTURE U-SHAPED PRODUCTS FORMING FROM SHEET |
RU2739057C1 (en) * | 2020-02-18 | 2020-12-21 | Акционерное общество "Производственное объединение "Завод имени Серго" | Method of making u-shaped articles by stamping from sheet, for example, front panel of home refrigerator door |
CN112475047A (en) * | 2020-11-19 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Automobile roof drawing die |
CN112475047B (en) * | 2020-11-19 | 2022-04-29 | 安徽江淮汽车集团股份有限公司 | Automobile roof drawing die |
Also Published As
Publication number | Publication date |
---|---|
BR9812916A (en) | 2000-08-08 |
AR013695A1 (en) | 2001-01-10 |
ES2163298T3 (en) | 2002-01-16 |
AU9525498A (en) | 1999-05-10 |
UY25210A1 (en) | 1999-04-09 |
US6032504A (en) | 2000-03-07 |
CA2304238A1 (en) | 1999-04-29 |
PT1030751E (en) | 2002-01-30 |
DE69801114D1 (en) | 2001-08-16 |
EP1030751B1 (en) | 2001-07-11 |
ATE202960T1 (en) | 2001-07-15 |
EP1030751A1 (en) | 2000-08-30 |
CA2304238C (en) | 2007-01-30 |
DE69801114T2 (en) | 2002-03-21 |
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