EP1186358A2 - Procédé et platine pour la fabrication de pièces déformés à froid à partir de tole et utilisation d'une platine - Google Patents

Procédé et platine pour la fabrication de pièces déformés à froid à partir de tole et utilisation d'une platine Download PDF

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Publication number
EP1186358A2
EP1186358A2 EP01117697A EP01117697A EP1186358A2 EP 1186358 A2 EP1186358 A2 EP 1186358A2 EP 01117697 A EP01117697 A EP 01117697A EP 01117697 A EP01117697 A EP 01117697A EP 1186358 A2 EP1186358 A2 EP 1186358A2
Authority
EP
European Patent Office
Prior art keywords
board
blank
sheet metal
thickness
base plate
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.)
Ceased
Application number
EP01117697A
Other languages
German (de)
English (en)
Other versions
EP1186358A3 (fr
Inventor
Martin Kibben
Thomas Dr.-Ing. Flehming
Klaus Dipl.-Ing. Blümel
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Stahl 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 ThyssenKrupp Stahl AG filed Critical ThyssenKrupp Stahl AG
Publication of EP1186358A2 publication Critical patent/EP1186358A2/fr
Publication of EP1186358A3 publication Critical patent/EP1186358A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation
    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/065—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes starting from a specific blank, e.g. tailored blank
    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • 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
    • B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49764—Method of mechanical manufacture with testing or indicating
    • Y10T29/49771—Quantitative measuring or gauging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/49798—Dividing sequentially from leading end, e.g., by cutting or breaking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure

Definitions

  • the invention relates to a method and a circuit board for Manufacture of a component from sheet steel Cold forming and the use of a blank.
  • EP 0 906 799 A1 are on one for the manufacture of deep-drawn Body components certain board in certain Areas sheet metal blanks on a base plate welded. Through the welded sheet metal blanks the board is reinforced so that it comes out of the board manufactured component the put on this part mechanical requirements safely met. Around ensure that even the welded on Sheet metal cuts have sufficient ductility own, are on the surface of the sheet metal blanks Material accumulations formed.
  • the object of the invention is based on the above-described prior art To create procedures which have an improved result cold forming or manufacturing makes certain component shapes possible in the first place.
  • boards are to be created, one have improved formability. After all, should advantageous uses of such boards specified become.
  • the relevant board comprises a base plate in which at least one section through a sheet metal blank is replaced by one in terms of its thickness and / or at least one material property of the Base plate of the board differentiating steel material is made, the geometry that Material properties, the thickness and / or the location of the Sheet metal cut through the during the cold forming of the Board incoming material flow are determined.
  • the location, shape and / or Material properties of the used in the board Sheet metal cutting not determined by the requirements, which in practical operation to that from the board generated component are made, but it is the im Material flow occurring during cold forming considered. It has surprisingly been found that itself through the targeted provided according to the invention Placement of sheet metal blanks in places where it in the course of cold forming to critical or insufficient material flows, produce components can be, which in the conventional way by a Did not allow cold forming.
  • the sheet metal blanks are for example placed in the board so that a Deformation reserve specifically available in the areas where there is a particularly high flow of Material is coming.
  • sheet metal blanks in the board to place that targeted deformations be enforced by direct action of the tool used for shaping not reached can be.
  • the invention can also be used in such an advantageous manner Use cases where a circuit board comes from one difficult to deform but in terms of its mechanical properties optimal steel sheet for Production of a component is to be used.
  • By the targeted placement of Sheet metal cuts in the areas on the deformation circuit boards can also have a significant influence difficult to deform sheet metal materials in complex shapes bring.
  • the sheet metal blanks according to the invention Due to the arrangement of the sheet metal blanks according to the invention in the base plate of the board can be different Forming errors can be counteracted in a targeted manner. This are in particular local overloads of the material, the non-onset of deformation due to local limited below the yield point of the material Tensions at the beginning of the forming process as well as the Cancellation of deformation due to a sudden Falling below the yield point during the Forming process.
  • the invention thus provides a method available, which is safe manufacture too complex components. Furthermore it is due to the targeted placement of the sheet metal blanks possible, cold-formed components also with inclusion of materials that are difficult to manufacture or do not let it deform at all.
  • each Sheet metal cutting in the board can be done easily Determine the way in a first step one only sample board consisting of a base plate into the mold of the component to be manufactured, then on the the areas created from the component circuit board are found in which it is one of the Deformation that does not meet the requirements, and finally the insufficiently deformed areas a tracing of the forming process to those Areas of the sample board are assigned, in which the sheet metal blanks are to be used.
  • Methods used according to the invention can Boards according to the invention in large quantities getting produced. Elaborate practical tests can thereby be avoided in that the deformation of the Sample board to the component, the finding of the Areas of insufficient deformation and traceability of the forming process as a simulation calculation after the Finite element method can be performed.
  • Procedure can be achieved in that the Cut sheet metal based on its position in the board has less formability than the surrounding Sheet material of the board. Such a and Sheet metal blank positioned in the board is impeded the material flow and in this way contributes to a directional deformation of the board.
  • the sheet metal blank a higher one in relation to its position in the circuit board Forming capacity as the surrounding material Circuit board. For example, such Places where there is cold forming too particularly strong flow of material comes targeted Prevent thinning. The danger of the emergence of Cracks are effectively suppressed in this way.
  • the thickness of the sheet metal blank after cold forming in is essentially equal to the sheet thickness of the board. at this embodiment of the invention, the thickness and Material property of each in the board used sheet metal blank selected so that from the Board-shaped component has a uniform exterior Owns appearance.
  • a sheet metal blank is arranged, whose thickness is greater than the thickness of the surrounding Steel sheet of the board.
  • a sheet metal blank is arranged, whose thickness is greater than the thickness of the surrounding Steel sheet of the board.
  • the two configurations given above are favorable in those cases where the risk of Wrinkling in the compressed area at the Cold deformation is low or controlled. Is not this the case, the formation of wrinkles in the through Areas subjected to compressive stress be suppressed that in the areas concerned Sheet metal blank is arranged, the thickness of which is greater than the thickness of the steel sheet surrounding the board. Such a sheet metal blank prevents Throwing up the compressed sheet material effective. Especially when combining one Sheet metal cut with one in the area of the later Sheet metal sheet inserted in the outer sheet also higher sheet thickness and / or yield point can safely in the manufacture of pipes complex curvature curves can also be generated.
  • the board P is essentially made of a base plate G. formed, which is made of a first steel material consists. Its material properties and thickness D are on adapted the loads to which that from the board P to manufacturing pipe R is exposed in practical operation.
  • the tube R has, as Fig. 2 shows, in its middle Apply a curvature K.
  • a Sheet metal blank 1 inserted into the board P. This is in in a manner known per se the shape of the sheet metal blank 1 adapted cut in the base plate G cut Service. The sheet metal blank is then 1 in inserted this section and its border area for example by laser welding with the Base plate G has been welded. In the same way is in that area of the board P from which the tube R the outer arc A of the curvature K is formed Sheet metal blank 2 inserted into the board P.
  • the sheet metal blank 1 is made of a steel material manufactured, which has a lower yield point, than the steel from which the base plate G of the board P has been manufactured.
  • the thickness D1 is the Sheet metal blank 1 larger than the thickness D of the base sheet G.
  • the sheet metal blank 2 has a thickness D2, which is also greater than the thickness D of the base plate G.
  • the tube R In the manufacture of the tube R is first from the first steel material cut the base plate G. Then the sheet metal blanks 1 and 2 in the base plate G used. The board P thus formed is then first in a known manner to a straight line running pipe preformed and longitudinally welded.
  • the curvature K of the tube R generated by the preformed straight tube in one suitable bending device by cold forming becomes. This prevents a material reservoir performing and when bending the tube under Tensile stress standing sheet metal blank 2 due to its Shape, its location in the board P, its Material properties and its thickness D2 that it in Area of the outer curve A of the curvature K to one excessive, the risk of cracking with material thinning.
  • the location in the board P, the material properties, the Thickness and the geometry of the sheet metal blanks are 1.2 for example by simulation calculations according to the Finite element method has been determined. It is first cold forming from one the same material as the base plate G existing level, only virtually existing sample board up to reproduced in a fully formed, virtual tube been, the shape of the shape of the tube to be produced R corresponded. Then on the tube model thus formed the areas have been marked where there is a excessive weakening of the component (outer arch) or too Folds (inner arch) has come. The size, the type and the course of the deformation errors was also determined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
EP01117697A 2000-09-08 2001-07-25 Procédé et platine pour la fabrication de pièces déformés à froid à partir de tole et utilisation d'une platine Ceased EP1186358A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10044682 2000-09-08
DE10044682A DE10044682C2 (de) 2000-09-08 2000-09-08 Verfahren und Platine zur Herstellung eines kaltumgeformten Bauteils aus Stahlblech und Verwendung einer Platine

Publications (2)

Publication Number Publication Date
EP1186358A2 true EP1186358A2 (fr) 2002-03-13
EP1186358A3 EP1186358A3 (fr) 2003-12-10

Family

ID=7655673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01117697A Ceased EP1186358A3 (fr) 2000-09-08 2001-07-25 Procédé et platine pour la fabrication de pièces déformés à froid à partir de tole et utilisation d'une platine

Country Status (5)

Country Link
US (1) US6883218B2 (fr)
EP (1) EP1186358A3 (fr)
JP (1) JP2002126823A (fr)
CZ (1) CZ297850B6 (fr)
DE (1) DE10044682C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3321026A1 (fr) * 2016-11-10 2018-05-16 Toyota Jidosha Kabushiki Kaisha Élément incurvé et son procédé de fabrication
WO2019226136A2 (fr) 2018-02-12 2019-11-28 Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Matériau en feuille permettant de réduire le coût des déchets de découpe pendant le traitement de matériaux métalliques en feuille et procédé d'obtention d'un tel matériau en feuille

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040250404A1 (en) * 2003-01-14 2004-12-16 Cripsey Timothy J. Process for press forming metal tubes
DE102010016945C5 (de) * 2010-05-14 2013-10-17 Kirchhoff Automotive Deutschland Gmbh Verfahren zur Herstellung eines Formteiles
JP2012071327A (ja) * 2010-09-29 2012-04-12 Jfe Steel Corp 金属板のプレス成形方法
US9097012B2 (en) * 2012-08-08 2015-08-04 Krip Llc Fabrication member
JP6852641B2 (ja) * 2017-10-16 2021-03-31 トヨタ自動車株式会社 サイドレールおよびサイドレールの製造方法
KR101919813B1 (ko) * 2017-11-23 2019-02-08 피피아이평화 주식회사 이음관

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104256A1 (de) * 1991-02-13 1992-08-20 Thyssen Laser Technik Gmbh Verfahren zum herstellen von durch tiefziehen umgeformten formkoerpern, insbesondere von karosserieteilen fuer kraftfahrzeuge
EP0620056A1 (fr) * 1993-04-16 1994-10-19 General Motors Corporation Procédé de formage d'une pièce tubulaire de structure
EP0869265A1 (fr) * 1997-04-04 1998-10-07 Prototechnik GmbH Conduit de fluide
WO1999062669A1 (fr) * 1998-06-02 1999-12-09 Elpatronic Ag Procede pour former un assemblage de toles, et dispositif et jeu de sections de tole approprie

Family Cites Families (8)

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US3209432A (en) * 1963-12-23 1965-10-05 Ford Motor Co Method for fabricating a structural member
US5491883A (en) * 1994-12-19 1996-02-20 Ap Parts Manufacturing Co. Method of manufacturing a non-linear composite tube
DE19604357B4 (de) * 1996-02-07 2004-06-24 Benteler Ag Verfahren zur Herstellung von Rohren mit Abschnitten unterschiedlicher Wanddicke
EP0878334B1 (fr) * 1997-05-12 2003-09-24 Firma Muhr und Bender Stabilisateur
DE19742818A1 (de) * 1997-09-27 1999-04-01 Volkswagen Ag Platine für ein Strukturbauteil, Strukturbauteil und Verfahren zur Herstellung eines Strukturbauteiles für Kraftfahrzeuge
KR100319064B1 (ko) * 2000-01-05 2002-01-05 김충열 이형재 스트립의 제조방법
NL1014823C2 (nl) * 2000-04-03 2001-10-04 Corus Staal Bv Werkwijze voor het vervaardigen van een buisvormig onderdeel.
DE10045938C1 (de) * 2000-09-16 2001-10-31 Daimler Chrysler Ag Verfahren zur Herstellung eines umfänglich geschlossenen Hohlprofiles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104256A1 (de) * 1991-02-13 1992-08-20 Thyssen Laser Technik Gmbh Verfahren zum herstellen von durch tiefziehen umgeformten formkoerpern, insbesondere von karosserieteilen fuer kraftfahrzeuge
EP0620056A1 (fr) * 1993-04-16 1994-10-19 General Motors Corporation Procédé de formage d'une pièce tubulaire de structure
EP0869265A1 (fr) * 1997-04-04 1998-10-07 Prototechnik GmbH Conduit de fluide
WO1999062669A1 (fr) * 1998-06-02 1999-12-09 Elpatronic Ag Procede pour former un assemblage de toles, et dispositif et jeu de sections de tole approprie

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3321026A1 (fr) * 2016-11-10 2018-05-16 Toyota Jidosha Kabushiki Kaisha Élément incurvé et son procédé de fabrication
WO2019226136A2 (fr) 2018-02-12 2019-11-28 Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Matériau en feuille permettant de réduire le coût des déchets de découpe pendant le traitement de matériaux métalliques en feuille et procédé d'obtention d'un tel matériau en feuille
EP3752313A4 (fr) * 2018-02-12 2021-04-21 Coskunoz Kalip Makina Sanayi ve Ticaret A.S. Matériau en feuille permettant de réduire le coût des déchets de découpe pendant le traitement de matériaux métalliques en feuille et procédé d'obtention d'un tel matériau en feuille

Also Published As

Publication number Publication date
CZ20012750A3 (cs) 2003-02-12
JP2002126823A (ja) 2002-05-08
CZ297850B6 (cs) 2007-04-18
DE10044682A1 (de) 2002-04-18
DE10044682C2 (de) 2002-08-29
EP1186358A3 (fr) 2003-12-10
US20020035772A1 (en) 2002-03-28
US6883218B2 (en) 2005-04-26

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