WO2024097523A1 - Bordage et rabattage assistés thermiquement de pièces moulées en aluminium - Google Patents
Bordage et rabattage assistés thermiquement de pièces moulées en aluminium Download PDFInfo
- Publication number
- WO2024097523A1 WO2024097523A1 PCT/US2023/076918 US2023076918W WO2024097523A1 WO 2024097523 A1 WO2024097523 A1 WO 2024097523A1 US 2023076918 W US2023076918 W US 2023076918W WO 2024097523 A1 WO2024097523 A1 WO 2024097523A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- article
- heating element
- edge
- hemming
- flanging
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000009957 hemming Methods 0.000 title claims abstract description 13
- 238000005266 casting Methods 0.000 title description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000005452 bending Methods 0.000 claims abstract description 12
- 238000009966 trimming Methods 0.000 claims abstract 3
- 235000010210 aluminium Nutrition 0.000 description 20
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000000429 assembly Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003090 exacerbative effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
- B21D39/023—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors using rollers
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
- B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
- B21D19/043—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of plates
Definitions
- the present invention relates generally to forming techniques, assemblies and processes associated with aluminums castings. More specifically, the present invention teaches the selective application of heat to a casted aluminum article prior to bending, this achieving the benefits of reduced weight, cycle time, cost and complexity of the finished article.
- US 9,896,050 teaches a die-cast battery tray configured as a high-pressure die cast component made from a lightweight metal.
- the tray element is configured in one piece and has at least one fastening element, by which the battery is fastened to the tray element, with the result that additional fastening elements which are configured separately from the tray element for fastening the battery to the tray element can be avoided or can be kept low.
- GB 1,063,427 teaches a two stage manufacture process for semi-finished steel sections formed by casting in a first stage (without heat) and deformed in a second stage with rollers to form desired comer radii.
- US 5,799,718 teaches a preheating device for a metal casting channel however doesn’t appear to cover post formation (following initial casting or extrusion) heating of portions of the initially formed article to assist with further shaping.
- US 8,181,498 discloses a method and technique for shaping a rim of an arched sheet metal although post application of heat doesn’t appear to be disclosed.
- US 2008/0178968 and US 2008/0178973 both teach an aluminum alloy sheet such as for an automotive outer panel having excellent formability which allows flat hemming, showing no orange peel surfaces and ridging marks after forming and having excellent paint bake hardenability.
- the present invention teaches a system and assembly for thermally assisting the flanging and hemming of a casted aluminum article in order to achieve the benefits of reduced weight, cycle time, cost and complexity of the finished article. Additionally, and by increasing the amount of heat added to the test piece, as well as an adaption of the applied forces when at a desired elevated temperature, it has been found that an aluminum cast sample can be hemmed over a mating piece. In this fashion, thermally assisted flanging and hemming aids in the reduction of weight, cost and complexity of automotive assemblies incorporating a cast aluminum architecture. BRIEF DESCRIPTION OF THE DRAWINGS
- FIG. 1 is an illustration of an aluminum casting according to an embodiment of the present invention and utilizing thermally assisted flanging and hemming techniques for bending the aluminum casting to aid in the reduction of weight, cost and complexity of the cast aluminum architecture;
- Fig. 2 is an enlarged section view taken from Fig. 1 and depicting a flanging or hemming operation for bending a heated edge section of the casting;
- FIG. 3 is an illustration similar to Fig. 2 and depicting a final bent shape of the hemmed edge or flange of Fig. 2;
- FIG. 4 is an illustration of a further concept example of a heating and bending operation for forming a flange edge to an aluminum casted article.
- the present invention discloses a system and assembly for thermally assisting the flanging and hemming of a casted aluminum article, such as without limitation a battery tray or the like, in order to achieve the benefits of reduced weight, cycle time, cost and complexity of the finished article. Additionally, and by increasing the amount of heat added to the test piece, as well as an adaption of the applied forces when at a desired elevated temperature, it has been found that an aluminum cast sample can be hemmed over a mating piece. In this fashion, thermally assisted flanging and hemming aids in the reduction of weight, cost and complexity of automotive assemblies incorporating a cast aluminum architecture.
- Figure 1 is an illustration, generally at 10, of an aluminum casting according to an embodiment of the present invention.
- the casting can include without limitation a battery tray and which is bent or re-formed via a thermally assisted flanging and hemming techniques for bending the aluminum casting to aid in the reduction of weight, cost and complexity of the cast aluminum architecture.
- this includes the placement of each of a holding pad 12 and a heating element 14 proximate an edge location 16 of the casting 10 in order to heat/ soften the flange edge 16 prior to bending the heated edge section.
- the heating elements can be of any known type or construction and can include, without limitation, any of direct heating or indirect methods. In this fashion, the heated and formed or reformed edge can be accomplished according to tighter radii in comparison to that which is possible using cold forming or shaping techniques.
- FIG. 3 an illustration similar to Fig. 2 is shown and depicting a final bent shape of the hemmed edge or flange of Fig. 2. This includes the placement of a suitable roller or flattening tool, this being represented at 18 and including a contact portion 20 for engaging and bending the heated edge location 16 shown in Fig. 2 until reformed into a final bent or folded profile as depicted at 16’.
- a suitable roller or flattening tool this being represented at 18 and including a contact portion 20 for engaging and bending the heated edge location 16 shown in Fig. 2 until reformed into a final bent or folded profile as depicted at 16’.
- FIG. 4 provides an illustration of a further concept example of a heating and bending operation for forming a flange edge to an aluminum casted article, with a folded location of the flange being shown at 22 and having a reverse folded edge 24, between which is sandwiched a separate plate 26.
- the purpose of Fig. 4 is to additionally depict the ability to include any type of targeted placement of heating elements in relation to a given location of an aluminum casted article for the purpose of assisting in targeted bending, hemming, or flanging of the casting in order to provide for each of reduced weight, cost and part complexity over prior art techniques.
- joinder references e.g., attached, affixed, coupled, connected, and the like
- joinder references are only used to aid the reader's understanding of the present disclosure, and may not create limitations, particularly as to the position, orientation, or use of the systems and/or methods disclosed herein. Therefore, joinder references, if any, are to be construed broadly. Moreover, such joinder references do not necessarily infer that two elements are directly connected to each other.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
L'invention concerne un procédé et un ensemble pour border ou rabattre un bord d'un article moulé en aluminium, comprenant le positionnement de chacun parmi un élément chauffant et un tampon de maintien à proximité d'un bord d'extension de l'article moulé, le chauffage du bord de l'article moulé correspondant à la mise en place de l'élément chauffant, et puis l'application d'un rouleau ou d'un outil d'aplatissement ayant une partie de contact pour mettre en prise et cintrer le bord chauffé jusqu'à ce qu'il soit reformé en un profil cintré ou plié final. Des étapes supplémentaires comprennent le repositionnement de l'au moins un élément chauffant ou le positionnement d'au moins un élément chauffant supplémentaire à un emplacement supplémentaire de l'article moulé, après quoi une étape ultérieure d'ébavurage ou de fabrication finale est utilisée pour achever l'article.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202263420770P | 2022-10-31 | 2022-10-31 | |
US63/420,770 | 2022-10-31 | ||
US18/379,367 US20240139791A1 (en) | 2022-10-31 | 2023-10-12 | Thermally assisted flanging and hemming of aluminum castings and extrusions as an enabler to lower cost and weight |
US18/379,367 | 2023-10-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2024097523A1 true WO2024097523A1 (fr) | 2024-05-10 |
Family
ID=88757431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2023/076918 WO2024097523A1 (fr) | 2022-10-31 | 2023-10-13 | Bordage et rabattage assistés thermiquement de pièces moulées en aluminium |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2024097523A1 (fr) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1063427A (en) | 1965-01-20 | 1967-03-30 | Benteler Geb Paderwerk | Continuous method for the two-stage manufacture of semi-finished steel sections |
US5799718A (en) | 1994-02-14 | 1998-09-01 | Seva | Device and frame for preheating a metal casting channel |
KR20050000841A (ko) * | 2003-06-25 | 2005-01-06 | 현대자동차주식회사 | 알루미늄-마그네슘-실리콘 합금판재의 헤밍방법 |
US20050284204A1 (en) * | 2004-06-28 | 2005-12-29 | Carsley John E | Roller hemming apparatus and method |
US20080178968A1 (en) | 2001-03-28 | 2008-07-31 | Sumitomo Light Metal Industries, Ltd. | Aluminum alloy sheet with excellent formability and paint bake hardenability and method for production thereof |
US8181498B2 (en) | 2008-06-06 | 2012-05-22 | Edag, Inc. | Method and apparatus for shaping a rim of a three-dimensionally arched sheet metal |
US20120214015A1 (en) * | 2011-02-18 | 2012-08-23 | GM Global Technology Operations LLC | Hemmed Metal Panels, Hemming Apparatuses, and Hemming Methods |
US9896050B2 (en) | 2013-06-05 | 2018-02-20 | Bayerische Mortoren Weke Aktiengesellschaft | Tray element for a motor vehicle and arrangement of a battery on a tray element of this type |
US20190076908A1 (en) * | 2010-05-17 | 2019-03-14 | Magna International Inc. | Method and Apparatus for Forming Materials with Low Ductility |
-
2023
- 2023-10-13 WO PCT/US2023/076918 patent/WO2024097523A1/fr unknown
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1063427A (en) | 1965-01-20 | 1967-03-30 | Benteler Geb Paderwerk | Continuous method for the two-stage manufacture of semi-finished steel sections |
US5799718A (en) | 1994-02-14 | 1998-09-01 | Seva | Device and frame for preheating a metal casting channel |
US20080178968A1 (en) | 2001-03-28 | 2008-07-31 | Sumitomo Light Metal Industries, Ltd. | Aluminum alloy sheet with excellent formability and paint bake hardenability and method for production thereof |
US20080178973A1 (en) | 2001-03-28 | 2008-07-31 | Sumitomo Light Metal Industries, Ltd. | Aluminum alloy sheet with excellent formability and paint bake hardenability and method for production thereof |
KR20050000841A (ko) * | 2003-06-25 | 2005-01-06 | 현대자동차주식회사 | 알루미늄-마그네슘-실리콘 합금판재의 헤밍방법 |
US20050284204A1 (en) * | 2004-06-28 | 2005-12-29 | Carsley John E | Roller hemming apparatus and method |
US8181498B2 (en) | 2008-06-06 | 2012-05-22 | Edag, Inc. | Method and apparatus for shaping a rim of a three-dimensionally arched sheet metal |
US20190076908A1 (en) * | 2010-05-17 | 2019-03-14 | Magna International Inc. | Method and Apparatus for Forming Materials with Low Ductility |
US20120214015A1 (en) * | 2011-02-18 | 2012-08-23 | GM Global Technology Operations LLC | Hemmed Metal Panels, Hemming Apparatuses, and Hemming Methods |
US9896050B2 (en) | 2013-06-05 | 2018-02-20 | Bayerische Mortoren Weke Aktiengesellschaft | Tray element for a motor vehicle and arrangement of a battery on a tray element of this type |
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