US3748889A - Apparatus for deforming sheet material - Google Patents

Apparatus for deforming sheet material Download PDF

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Publication number
US3748889A
US3748889A US00202948A US3748889DA US3748889A US 3748889 A US3748889 A US 3748889A US 00202948 A US00202948 A US 00202948A US 3748889D A US3748889D A US 3748889DA US 3748889 A US3748889 A US 3748889A
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US
United States
Prior art keywords
die
members
collapsible
workpiece
frame means
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.)
Expired - Lifetime
Application number
US00202948A
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English (en)
Inventor
K Miller
E Patton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Application granted granted Critical
Publication of US3748889A publication Critical patent/US3748889A/en
Assigned to CATERPILLAR INC., A CORP. OF DE. reassignment CATERPILLAR INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CATERPILLAR TRACTOR CO., A CORP. OF CALIF.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B21D22/10—Stamping using yieldable or resilient pads
    • 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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies

Definitions

  • Conventional sheet deforming systems employ two mating die members which shape sheet material which is placed between them by uniformly stretching the material to fit a given pattern when the dies are brought together.
  • the entire workpiece is treated at one time and deformation occurs substantially simultaneously in all areas of the workpiece.
  • the maximum deformation permitted by such conventional arrangements is limited by the tensile properties of the material being shaped.
  • a very thin workpiece such as a stainless steel sheet having a thickness of approximately 0.003 inches will frequently tear when subjected to a strain of approximately 25 percent with conventional corrugated die shapes. As the desired amount of deformation increases, the tendency to tear increases. This is due to the appearance of high strain areas occasioned by a lack of uniformity in the material stretching process. Material is not permitted, by such conventional means, to gather at each point of deformation to provide a uniform distribution of pressure and strain throughout the area of the workpiece which is deformed.
  • An object of this invention is to overcome the above briefly described problems while providing a method for deforming a sheet material workpiece to a degree not permitted by conventional die press processes.
  • Another object is to provide a die assembly which will permit material to be gathered during the deformation process to reduce the amount of strain required to obtain a given desired shape.
  • Another object of the present invention is to provide a die assembly which is capable of progressively deforming a sheet material workpiece in a manner which minimizes the reduction in material thickness required for. the deformation to assure a more uniform stress profile in the shaped workpiece.
  • FIG. 1 is a sectional elevational view of the segmented die assembly of the present invention in its open position
  • FIG. 2 is a sectional view showing the assembly in a partially closed orientation
  • FIG. 3 is a sectional view which shows the disposition of elements when the assembly is completely closed
  • FIG. 4 is an isometric view of the upper die assemblage
  • FIG. 5 is a sectional view, taken along the line V-V of FIG. 1.
  • FIGS. l-3 the present apparatus is shown in each of a plurality of operative positions.
  • An upper die assemblage is shown generally at disposed in a position which is vertically above a planar lower die assemblage shown generally at 12.
  • the upper assemblage includes a segmented portion which provides a collapsible die half.
  • An upper frame member 14 is provided as is a plate member 16, a holder member 18, a contoured resilient pad member 20 formed of a relatively dense elastic material such as neoprene rubber or the like, and longitudinally-oriented individual die segments 22 through 34. As shown, the segments diminish in height symmetrically outwardly from the center member 28.
  • I-Iolder member 18 having ledge portions 76 and 78, supports the individual die segments 22 through 34, resilient pad member 20, and plate member 16. Each die segment has flange portions 79 which engage said ledge portions.
  • This subassembly is inserted into an open end 17 of the upper frame member 14, and an end cap member 40 is positioned and secured as shown by fastening means such as bolt 42, or the like.
  • the present die assemblages are designed for use in conjunction with conventional press equipment.
  • the upper die assemblage 10 may be substituted for a conventional upper die platen and this would be the only change required for the conversion of a typical hydraulic or mechanical press into one which could be used for forming sheet material in accordance with the subject invention.
  • the sheet material workpiece is deformed by the present system in a single strike operation, the economical production rates of conventional press methods are maintained.
  • the lower die assemblage 12 contains a die platen 50 which is fixed within a lower frame member 52.
  • Guide pins 60 and 62 secured to the lower frame member 52, engage guide pin bores 64 and 66, respectively, within the upper die assemblage 10. While only two guide pins and two bores are shown in FIGS. l-3, additional pins and bores, such as bores 64' and 66' shown in FIG. 4, may be required to effectively guide the upper and lower die assemblages during the forming operation.
  • FIGS. l-3 respectively illustrate three progressive positions taken by the die assemblages during the deforming process. The relative lateral disposition of the assemblages will be maintained during all phases of the operation by means of close sliding tolerances between the guide pins 60 and 62 and their respective bores 64 and 66.
  • FIG. 1 The position of the apparatus during the first step of a typical cycle is shown in FIG. 1.
  • a sheet of material comprising a workpiece 70 is inserted between the upper and lower die assemblages.
  • the centermost die segment 28 is higher or larger than the adjacent segments 26 and 30.
  • segments 26 and 30 are larger than the die segments 24 and 32, which, in turn, are also larger than outermost segments 22 and 34.
  • the die segment 28 is larger than the adjacent die segments 26 and 30 and because its vertical displacement is inhibited by the loading afforded by the resilient pad member 20, the workpiece central portion is substantially deformed before the adjacent segments 26 and 30 engage the workpiece.
  • the sheet material has the opportunity to gather or to be drawn inwardly toward the center of the workpiece after the initial deformation. The amount of material stretch or the incremental strain which is required to complete the total deformation is thereby reduced.
  • die segments 26 and 30 will have completed the deformation of the material between these segments and the bottom die platen prior to the engagement of the material by the die segments 24 and 32.
  • the material deformation process continues in this manner as the two die assemblages are brought together and sequential deformation steps which permit the material to progressively gather are performed on the workpiece during a single strike operation.
  • the resilient pad member 20 will be displaced porportionally in the area of the given die segment.
  • resilient pad member 20 will have been compressed and deformed, and will have virtually filled the cavity provided therefor. The pad member, during the defonnation stroke, will have exerted a substantially equal load upon all of the die segments.
  • the sequential deforming function provided by the progressive action of the individual die segments permits a workpiece sheet to gather as it is being deformed or stretched, while the continuous displacement and compression of the resilient pad member assures uniform loading on each of the die segments and a more consistent thickness in the pattern formed in the workpiece.
  • the apparatus of the present invention provides not only a new structure, but also a means to perform an improved method for deforming sheet material.
  • the instant die assembly and method permit the workpiece material to gather during the deformation operation.
  • a die assembly for deforming a workpiece of sheet material comprising;
  • resilient means associated with said plurality of collapsible crown-shaped die members for progressively loading said plurality of collapsible crowned die members to deform said workpiece outwardly from its central portion as said planar die member and said plurality of collapsible crowned die members are moved together, said plurality of crownshaped die members being arranged for relative movement and diminishing symetrically in size transversely outwardly from the centermost member.
  • said pad member has four edge surfaces and two other surfaces and wherein at least one of said surfaces is contoured.
  • each of said collapsible crowned die members has a flanged portion which cooperates with said flange of said frame means to retain said members within said frame means and to limit movement of said members toward said planar die member relative to said frame means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
US00202948A 1971-11-29 1971-11-29 Apparatus for deforming sheet material Expired - Lifetime US3748889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20294871A 1971-11-29 1971-11-29

Publications (1)

Publication Number Publication Date
US3748889A true US3748889A (en) 1973-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00202948A Expired - Lifetime US3748889A (en) 1971-11-29 1971-11-29 Apparatus for deforming sheet material

Country Status (5)

Country Link
US (1) US3748889A (enExample)
JP (1) JPS5411824B2 (enExample)
BE (1) BE792036A (enExample)
DE (1) DE2255850A1 (enExample)
GB (1) GB1398027A (enExample)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845654A (en) * 1973-07-13 1974-11-05 Caterpillar Tractor Co Die forming apparatus
US3892119A (en) * 1974-03-04 1975-07-01 Caterpillar Tractor Co Forming apparatus for sheet material
US4027521A (en) * 1975-01-30 1977-06-07 Trw Inc. Apparatus for making terminal connectors
US4434643A (en) 1978-11-08 1984-03-06 Reheat Ab Method and a device for embossing heat exchanger plates
FR2584176A1 (fr) * 1984-03-14 1987-01-02 Fischer Helmut Echangeur de chaleur a plaques et outil d'estampage pour sa fabrication
US4635462A (en) * 1985-09-26 1987-01-13 Diversified Manufacturing Corporation Corrugating die shoe assemblies
US4722132A (en) * 1986-05-12 1988-02-02 The Goodyear Tire & Rubber Company Splicing method for tire sheet material
US4755253A (en) * 1986-05-12 1988-07-05 The Goodyear Tire & Rubber Company Splicing apparatus
FR2641215A1 (fr) * 1988-12-30 1990-07-06 Isoform Dispositif d'emboutissage de materiaux en feuilles
EP0498777A1 (en) * 1991-02-08 1992-08-12 Massimo Marchesini Method for forming containers of undulated cardboard
WO1993001093A1 (en) * 1991-07-03 1993-01-21 Soremartec S.A. A process for forming wrappers of thin sheet materials and a device for carrying out same
EP0474679A4 (en) * 1989-05-30 1993-02-17 Gradual Pty. Ltd. Method and apparatus for the fabrication of 3-dimensional blanks
US5253507A (en) * 1992-07-13 1993-10-19 G.A.L. Gage Co. Method of forming a spacer used to space end to end piping
US5333482A (en) * 1992-10-30 1994-08-02 Solar Turbines Incorporated Method and apparatus for flattening portions of a corrugated plate
WO1996027505A1 (de) * 1995-03-03 1996-09-12 Friedrich Wiegand Gmbh Verfahren und zugehörige einrichtungen zur herstellung von metallblechschildern
FR2735047A1 (fr) * 1995-06-06 1996-12-13 Lahera Productions Sarl Procede de plissage regulier d'une portion d'une feuille de plomb en vue de realiser un abergement de toiture, machine a cet effet et abergement realise avec ladite feuille.
US5600991A (en) * 1995-02-10 1997-02-11 Ogihara America Corporation Stretch controlled forming mechanism and method for forming multiple gauge welded blanks
US5694803A (en) * 1994-11-30 1997-12-09 Solar Turbines Incorporated Fin folding machine for corrugating sheet material
EP0960664A1 (de) * 1998-05-25 1999-12-01 Neotech Holding AG Vorrichtung und Verfahren zur Herstellung von Lamellen
US6151938A (en) * 1999-07-06 2000-11-28 Korea Institute Of Science And Technology Dieless forming apparatus
US6186936B1 (en) * 1998-03-04 2001-02-13 Hallmark Cards, Incorporated Paper embossing system with a flexible counter and method of embossing
US6272897B1 (en) * 2000-02-25 2001-08-14 Anthony D. Ciranna Method of forming honeycomb panels into compound curved shapes
US6349639B1 (en) 2000-08-22 2002-02-26 Hallmark Cards, Incorporated Paper embossing system with a flexible counter and method of embossing
US6357113B1 (en) 1999-11-04 2002-03-19 Williams International Co., L.L.C. Method of manufacture of a gas turbine engine recuperator
US20020179290A1 (en) * 2001-06-05 2002-12-05 Larson Ralph I. Heatsink assembly and method of manufacturing the same
US6502447B2 (en) * 1999-12-14 2003-01-07 Voss Manufacturing, Inc. Device and method for manufacturing turbulators for use in compact heat exchangers
US20040055353A1 (en) * 2002-08-23 2004-03-25 Seiko Epson Corporation Forging punch, method of manufacturing liquid ejection head using the same, and liquid ejection head manufactured by the method
US20050188740A1 (en) * 2003-12-03 2005-09-01 Naoyuki Enjoji Press forming apparatus for fuel cell metal separator and press forming method therefor
RU2284915C1 (ru) * 2005-02-11 2006-10-10 Ильдус Мухаметгалеевич Закиров Устройство для изготовления гофрированного заполнителя одинарной кривизны
US20060236741A1 (en) * 2005-04-20 2006-10-26 Jatco Ltd Press forming method and apparatus
CN1299908C (zh) * 2003-08-12 2007-02-14 精工爱普生株式会社 液体喷射头及其制造方法
US20080040926A1 (en) * 2006-08-15 2008-02-21 The Boeing Company Apparatus and Method for Forming Corrugated Members
US20100180427A1 (en) * 2009-01-16 2010-07-22 Ford Motor Company Texturing of thin metal sheets/foils for enhanced formability and manufacturability
EP2164652A4 (en) * 2007-06-01 2011-11-09 Univ Queensland ARRANGEMENT AND METHOD FOR PRESSING A DEFORMABLE MATERIAL
CN102861803A (zh) * 2012-09-26 2013-01-09 无锡市恒达矿山机械有限公司 一种钢带压模机
CN102873155A (zh) * 2012-09-26 2013-01-16 无锡市恒达矿山机械有限公司 一种钢带压模机压板结构
US20160296990A1 (en) * 2015-04-09 2016-10-13 Denso Corporation Press working method
US20160354967A1 (en) * 2015-06-04 2016-12-08 Fuji Jukogyo Kabushiki Kaisha Method for producing resin molded body and press molding apparatus
US20240091839A1 (en) * 2022-09-15 2024-03-21 The Boeing Company Stamp-forming system and method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5263257A (en) * 1975-11-20 1977-05-25 Matsushita Electric Industrial Co Ltd Method of forming wavy resin sheet
JPS5667831A (en) * 1979-11-07 1981-06-08 Mitsubishi Electric Corp Preparation for screen
DE3024403C2 (de) * 1980-06-28 1983-10-20 Schweizerische Aluminium AG, 3965 Chippis Formpresse zum Wellen von Blechtafeln
IE960695A1 (en) * 1996-10-01 1998-04-08 Rainforest R & D Limited An apparatus and a method for bending a component
DE10138941B4 (de) * 2000-08-08 2012-03-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur Herstellung von strukturierten Breit-Flach-Erzeugnissen
JP5617297B2 (ja) * 2010-03-25 2014-11-05 凸版印刷株式会社 インプリント方法
CN105414348A (zh) * 2015-12-24 2016-03-23 辽宁瑟克赛斯热能科技有限公司 一种板式换热器板片柔性压制成型模具
CN113664092B (zh) * 2021-08-09 2025-05-23 王春举 氢燃料电池金属极板智能制造产线

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB454229A (en) * 1935-03-25 1936-09-25 Cyril Terence Delaney Improvements in or relating to the manufacture of radiators for internal combustion engines
US2354005A (en) * 1941-10-07 1944-07-18 Hydraulic Dev Corp Inc Device for metal drawing
US2510024A (en) * 1940-03-27 1950-05-30 Mayer Eugene Means for corrugating metal sheets
US2954068A (en) * 1959-09-16 1960-09-27 Floyd M Williamson Hydraulic cushions for die pads of ram type presses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB454229A (en) * 1935-03-25 1936-09-25 Cyril Terence Delaney Improvements in or relating to the manufacture of radiators for internal combustion engines
US2510024A (en) * 1940-03-27 1950-05-30 Mayer Eugene Means for corrugating metal sheets
US2354005A (en) * 1941-10-07 1944-07-18 Hydraulic Dev Corp Inc Device for metal drawing
US2954068A (en) * 1959-09-16 1960-09-27 Floyd M Williamson Hydraulic cushions for die pads of ram type presses

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845654A (en) * 1973-07-13 1974-11-05 Caterpillar Tractor Co Die forming apparatus
US3892119A (en) * 1974-03-04 1975-07-01 Caterpillar Tractor Co Forming apparatus for sheet material
US4027521A (en) * 1975-01-30 1977-06-07 Trw Inc. Apparatus for making terminal connectors
US4434643A (en) 1978-11-08 1984-03-06 Reheat Ab Method and a device for embossing heat exchanger plates
FR2584176A1 (fr) * 1984-03-14 1987-01-02 Fischer Helmut Echangeur de chaleur a plaques et outil d'estampage pour sa fabrication
US4635462A (en) * 1985-09-26 1987-01-13 Diversified Manufacturing Corporation Corrugating die shoe assemblies
US4722132A (en) * 1986-05-12 1988-02-02 The Goodyear Tire & Rubber Company Splicing method for tire sheet material
US4755253A (en) * 1986-05-12 1988-07-05 The Goodyear Tire & Rubber Company Splicing apparatus
FR2641215A1 (fr) * 1988-12-30 1990-07-06 Isoform Dispositif d'emboutissage de materiaux en feuilles
EP0380894A1 (fr) * 1988-12-30 1990-08-08 Isoform Dispositif d'emboutissage de matériaux en feuilles
US5067336A (en) * 1988-12-30 1991-11-26 Isoform Device for pressing sheet material
EP0474679A4 (en) * 1989-05-30 1993-02-17 Gradual Pty. Ltd. Method and apparatus for the fabrication of 3-dimensional blanks
EP0498777A1 (en) * 1991-02-08 1992-08-12 Massimo Marchesini Method for forming containers of undulated cardboard
WO1993001093A1 (en) * 1991-07-03 1993-01-21 Soremartec S.A. A process for forming wrappers of thin sheet materials and a device for carrying out same
US5775060A (en) * 1991-07-03 1998-07-07 Soremartec S.A. Process for forming wrappers of thin sheet materials and a device for carrying out same
US5253507A (en) * 1992-07-13 1993-10-19 G.A.L. Gage Co. Method of forming a spacer used to space end to end piping
US5333482A (en) * 1992-10-30 1994-08-02 Solar Turbines Incorporated Method and apparatus for flattening portions of a corrugated plate
US5694803A (en) * 1994-11-30 1997-12-09 Solar Turbines Incorporated Fin folding machine for corrugating sheet material
US5600991A (en) * 1995-02-10 1997-02-11 Ogihara America Corporation Stretch controlled forming mechanism and method for forming multiple gauge welded blanks
WO1996027505A1 (de) * 1995-03-03 1996-09-12 Friedrich Wiegand Gmbh Verfahren und zugehörige einrichtungen zur herstellung von metallblechschildern
FR2735047A1 (fr) * 1995-06-06 1996-12-13 Lahera Productions Sarl Procede de plissage regulier d'une portion d'une feuille de plomb en vue de realiser un abergement de toiture, machine a cet effet et abergement realise avec ladite feuille.
US6186936B1 (en) * 1998-03-04 2001-02-13 Hallmark Cards, Incorporated Paper embossing system with a flexible counter and method of embossing
EP0960664A1 (de) * 1998-05-25 1999-12-01 Neotech Holding AG Vorrichtung und Verfahren zur Herstellung von Lamellen
US6151938A (en) * 1999-07-06 2000-11-28 Korea Institute Of Science And Technology Dieless forming apparatus
US6357113B1 (en) 1999-11-04 2002-03-19 Williams International Co., L.L.C. Method of manufacture of a gas turbine engine recuperator
US6502447B2 (en) * 1999-12-14 2003-01-07 Voss Manufacturing, Inc. Device and method for manufacturing turbulators for use in compact heat exchangers
US6272897B1 (en) * 2000-02-25 2001-08-14 Anthony D. Ciranna Method of forming honeycomb panels into compound curved shapes
US6349639B1 (en) 2000-08-22 2002-02-26 Hallmark Cards, Incorporated Paper embossing system with a flexible counter and method of embossing
US6827130B2 (en) * 2001-06-05 2004-12-07 Heat Technology, Inc. Heatsink assembly and method of manufacturing the same
US20020179290A1 (en) * 2001-06-05 2002-12-05 Larson Ralph I. Heatsink assembly and method of manufacturing the same
US20050274490A1 (en) * 2001-06-05 2005-12-15 Larson Ralph I Heatsink assembly and method of manufacturing the same
US7284596B2 (en) 2001-06-05 2007-10-23 Heat Technology, Inc. Heatsink assembly and method of manufacturing the same
US7905431B2 (en) 2002-08-23 2011-03-15 Seiko Epson Corporation Forging punch, method of manufacturing liquid ejection head using the same, and liquid ejection head manufactured by the method
US20040055353A1 (en) * 2002-08-23 2004-03-25 Seiko Epson Corporation Forging punch, method of manufacturing liquid ejection head using the same, and liquid ejection head manufactured by the method
US7040134B2 (en) * 2002-08-23 2006-05-09 Seiko Epson Corporation Punch for forging a liquid ejection head
US20060117829A1 (en) * 2002-08-23 2006-06-08 Seiko Epson Corporation Forging punch, method of manufacturing liquid ejection head using the same, and liquid ejection head manufactured by the method
CN1299908C (zh) * 2003-08-12 2007-02-14 精工爱普生株式会社 液体喷射头及其制造方法
US7178374B2 (en) * 2003-12-03 2007-02-20 Honda Motor Co., Ltd. Press forming apparatus for fuel cell metal separator
US20050188740A1 (en) * 2003-12-03 2005-09-01 Naoyuki Enjoji Press forming apparatus for fuel cell metal separator and press forming method therefor
RU2284915C1 (ru) * 2005-02-11 2006-10-10 Ильдус Мухаметгалеевич Закиров Устройство для изготовления гофрированного заполнителя одинарной кривизны
US20060236741A1 (en) * 2005-04-20 2006-10-26 Jatco Ltd Press forming method and apparatus
US7454940B2 (en) * 2005-04-20 2008-11-25 Jatco Ltd Press forming method and apparatus
US20080040926A1 (en) * 2006-08-15 2008-02-21 The Boeing Company Apparatus and Method for Forming Corrugated Members
US7642481B2 (en) * 2006-08-15 2010-01-05 The Boeing Company Apparatus and method for forming corrugated members
EP2164652A4 (en) * 2007-06-01 2011-11-09 Univ Queensland ARRANGEMENT AND METHOD FOR PRESSING A DEFORMABLE MATERIAL
CN101918157B (zh) * 2007-06-01 2014-04-09 昆士兰大学 用于冲压成形可变形材料的组件和方法
US20100180427A1 (en) * 2009-01-16 2010-07-22 Ford Motor Company Texturing of thin metal sheets/foils for enhanced formability and manufacturability
CN102861803A (zh) * 2012-09-26 2013-01-09 无锡市恒达矿山机械有限公司 一种钢带压模机
CN102873155A (zh) * 2012-09-26 2013-01-16 无锡市恒达矿山机械有限公司 一种钢带压模机压板结构
US20160296990A1 (en) * 2015-04-09 2016-10-13 Denso Corporation Press working method
US20160354967A1 (en) * 2015-06-04 2016-12-08 Fuji Jukogyo Kabushiki Kaisha Method for producing resin molded body and press molding apparatus
US10926448B2 (en) * 2015-06-04 2021-02-23 Subaru Corporation Method for producing resin molded body and press molding apparatus
US20240091839A1 (en) * 2022-09-15 2024-03-21 The Boeing Company Stamp-forming system and method
US12097549B2 (en) * 2022-09-15 2024-09-24 The Boeing Company Stamp-forming system and method

Also Published As

Publication number Publication date
JPS4864145A (enExample) 1973-09-05
DE2255850A1 (de) 1973-06-07
BE792036A (fr) 1973-05-29
JPS5411824B2 (enExample) 1979-05-17
GB1398027A (en) 1975-06-18

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