EP1000678A2 - Profilé creux ou pièce semblable pour déformation par haute pression interne, procédé pour fabriquer un profil en métal léger et dispositif utilisé pour sa fabrication - Google Patents

Profilé creux ou pièce semblable pour déformation par haute pression interne, procédé pour fabriquer un profil en métal léger et dispositif utilisé pour sa fabrication Download PDF

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Publication number
EP1000678A2
EP1000678A2 EP99810965A EP99810965A EP1000678A2 EP 1000678 A2 EP1000678 A2 EP 1000678A2 EP 99810965 A EP99810965 A EP 99810965A EP 99810965 A EP99810965 A EP 99810965A EP 1000678 A2 EP1000678 A2 EP 1000678A2
Authority
EP
European Patent Office
Prior art keywords
profile
wall
initial
section
hollow profile
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.)
Withdrawn
Application number
EP99810965A
Other languages
German (de)
English (en)
Other versions
EP1000678A3 (fr
Inventor
Jörg Hein
Lutz Kampmann
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.)
3A Composites International AG
Audi AG
Original Assignee
Alcan Technology and Management Ltd
Alusuisse Lonza Services Ltd
Alusuisse Technology and Management Ltd
Audi AG
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 Alcan Technology and Management Ltd, Alusuisse Lonza Services Ltd, Alusuisse Technology and Management Ltd, Audi AG filed Critical Alcan Technology and Management Ltd
Publication of EP1000678A2 publication Critical patent/EP1000678A2/fr
Publication of EP1000678A3 publication Critical patent/EP1000678A3/fr
Withdrawn legal-status Critical Current

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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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
    • B21D35/006—Blanks having varying thickness, e.g. tailored blanks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped

Definitions

  • the invention relates to a hollow profile or the like.
  • Workpiece made of a metal alloy with end areas forming corner areas and sidewalls of different thickness, which through in its Profile space generated by means of a flowable active medium High pressure is treated.
  • the invention also covers a method for producing a profile from light metal and a device therefor.
  • Corners or sudden changes in wall thickness lead to calibration uneven deformation in the workpiece. Also walls of different thicknesses stretch when hydroforming unevenly. Go from a corner two such different walls, so will both Walls pressed against the tool by the internal pressure. The thicker wall almost stays there while the thinner wall - lower section modulus - in the Corner is drawn. This leads to a rejuvenation of the thinner Wall to the corner area.
  • the thickness of the End section constant, and this goes on an internal step over into the thinner area of the thin wall.
  • a cross-section End portion tapering away from the thicker wall.
  • a hollow profile 10 - produced from an aluminum alloy by extrusion - is expanded by an internal pressure set in its profile space 12.
  • the hollow profile 10 has two end walls 14 , 14 a with a wall thickness a of 2 ⁇ 0.2 mm, which are formed at an external distance b from here about 74 mm to a side wall 16 extending at right angles to them.
  • the end walls 14 and 14 a are of different lengths f (approximately 51 mm) and f 1 (approximately 58 mm), so that the second side wall 16 a of the hollow profile 10 is inclined at an external angle w of approximately 85 ° to the plane of the shorter end wall 14 is.
  • a subsequent end portion 20 of a length h of 15 mm of the side walls 16, 16 a is the wall thickness of i 1.8 ⁇ 0.2 mm, and then goes to an inner stage 22 on a wall thickness s of 1, 5 ⁇ 0.2 mm back.
  • the transition between the end portions 20 of the side walls 16 , 16 a and the end walls 14 , 14 a is rounded in each case.
  • Fig. 2 illustrates a corner 22 of the hollow profile 10, which is formed by the end wall 14 a and the adjacent end portion 20 of constant wall thickness i of the side wall 16, the latter merging with the inner step 24 into the thinner portion of the side wall 16.
  • FIG. 3 shows an end portion 20 a of length h 1 ,, which tapers away conically from the end wall 14 a
  • FIG. 4 shows an end portion 20 b which is curved on the inside into the end wall 14 a and parabolic-like contour.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
EP99810965A 1998-11-06 1999-10-22 Profilé creux ou pièce semblable pour déformation par haute pression interne, procédé pour fabriquer un profil en métal léger et dispositif utilisé pour sa fabrication Withdrawn EP1000678A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998151327 DE19851327A1 (de) 1998-11-06 1998-11-06 Hohlprofil od. dgl. Werkstück zum Umformen durch Innenhochdruck, Verfahren zum Herstellen eines Profils aus Leichtmetall und Vorrichtung dafür
DE19851327 1998-11-06

Publications (2)

Publication Number Publication Date
EP1000678A2 true EP1000678A2 (fr) 2000-05-17
EP1000678A3 EP1000678A3 (fr) 2004-10-27

Family

ID=7886986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810965A Withdrawn EP1000678A3 (fr) 1998-11-06 1999-10-22 Profilé creux ou pièce semblable pour déformation par haute pression interne, procédé pour fabriquer un profil en métal léger et dispositif utilisé pour sa fabrication

Country Status (2)

Country Link
EP (1) EP1000678A3 (fr)
DE (1) DE19851327A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865959A1 (fr) * 2004-02-09 2005-08-12 Cci Procede de fabrication d'elements constitutifs de bancs de moulage de poutrelles precontraintes
US20170030079A1 (en) * 2014-04-14 2017-02-02 Mitsubishi Rayon Co., Ltd. Long structural member and structural member complex using same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005023732B3 (de) * 2005-05-23 2006-07-20 Daimlerchrysler Ag Herstellungsverfahren für metallische Hohlkörper
DE102007047875A1 (de) * 2007-11-28 2009-06-04 Hilti Aktiengesellschaft Profil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620056A1 (fr) 1993-04-16 1994-10-19 General Motors Corporation Procédé de formage d'une pièce tubulaire de structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826238A (en) * 1986-12-01 1989-05-02 Honda Giken Kogyo Kabushiki Kaisha Side sill for automotive vehicle
US5595086A (en) * 1994-08-02 1997-01-21 Aluminum Company Of America Apparatus for calibrating hollow nonsymmetrical multiplane extrusions and associated method
EP0733539B1 (fr) * 1995-03-22 1998-01-07 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Profilé creux pour structure porteuse de véhicule à moteur
DE19644220C1 (de) * 1996-10-24 1997-12-18 Daimler Benz Ag Seitlicher Unterfahrschutz für Nutzfahrzeuge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620056A1 (fr) 1993-04-16 1994-10-19 General Motors Corporation Procédé de formage d'une pièce tubulaire de structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865959A1 (fr) * 2004-02-09 2005-08-12 Cci Procede de fabrication d'elements constitutifs de bancs de moulage de poutrelles precontraintes
US20170030079A1 (en) * 2014-04-14 2017-02-02 Mitsubishi Rayon Co., Ltd. Long structural member and structural member complex using same
US11299888B2 (en) * 2014-04-14 2022-04-12 Mitsubishi Chemical Corporation Long structural member and structural member complex using same

Also Published As

Publication number Publication date
EP1000678A3 (fr) 2004-10-27
DE19851327A1 (de) 2000-05-11

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