US20090266135A1 - Method of producing sheet metal blanks having a varing thickness - Google Patents

Method of producing sheet metal blanks having a varing thickness Download PDF

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Publication number
US20090266135A1
US20090266135A1 US12/428,155 US42815509A US2009266135A1 US 20090266135 A1 US20090266135 A1 US 20090266135A1 US 42815509 A US42815509 A US 42815509A US 2009266135 A1 US2009266135 A1 US 2009266135A1
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United States
Prior art keywords
sheet metal
thickness
metal blank
blank
producing
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.)
Abandoned
Application number
US12/428,155
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English (en)
Inventor
Hans-Jurgen Knaup
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik GmbH
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
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Assigned to BENTELER AUTOMOBILTECHNIK GMBH reassignment BENTELER AUTOMOBILTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KNAUP, HANS-JURGEN
Publication of US20090266135A1 publication Critical patent/US20090266135A1/en
Abandoned 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/13—Surface milling of plates, sheets or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/006—Vehicles

Definitions

  • the present disclosure relates to a method of producing flat sheet metal blanks having a varying thickness.
  • the method relates particularly to manufacturing components for motor vehicles.
  • German Patent Document DE 199 62 754 A1 For manufacturing sheet metal blanks, it is known from German Patent Document DE 199 62 754 A1 to flexibly roll metal strips so that areas of a different thickness are created over the length of the metal strip (i.e., tailor-rolled blanks—TRB).
  • the sheet metal blanks produced by a TRB method are then further formed into the final shape of the structural components in a hot-forming process in the direction of the length.
  • the blanks are hardened by means of the last forming operation in the tool.
  • the blanks produced in this manner also have disadvantages.
  • strips can be rolled only on their full width in the longitudinal direction for forming sections with different thicknesses.
  • the sudden rises in thickness always extend at a right angle to the rolling direction.
  • this has the disadvantage that blanks of a very different width can usually not be nested in the strip in a material-saving manner as a result of the above-described type of gradations of the thickness.
  • the demand for the starting material which, because of the rolling operation, is already very expensive, often increases to such an extent that the use of this process will no longer be economical.
  • the blank and the patch have to be cut separately. They have to be formed jointly and subsequently also often still have to be welded to one another.
  • the patches are not connected with the basic material over the whole surface. For this reason, very high expenditures are required for avoiding the crevice corrosion between the two metal sheets disposed on one another. This may even have the result that the metal sheets are first welded, or tacked, to one another, are then jointly formed, are separated again, are provided with corrosion protection and are subsequently finally welded to one another.
  • the patchwork never reaches the strength of a massive construction consisting of one piece.
  • German Patent Document DE 101 45 241 C2 suggests the producing of a blank by cutting by means of a geometrically defined blade, particularly by milling, and subsequently subjecting the blank to a cold or hot forming.
  • the present disclosure relates to a simplified method of producing essentially plane sheet metal blanks which each vary in their thickness at least in sections in two dimensional directions.
  • the present disclosure thus relates to a method of producing sheet metal blanks which vary in their thickness, the flat sheet metal blanks being produced, for example, for manufacturing components for motor vehicles.
  • the sheet metal blank has a variable thickness and is prefabricated as a starting workpiece.
  • the prefabricated sheet metal blank is then partially reworked, for example, by being restamped, such that the variable thickness of the prefabricated sheet metal blank is locally, or selectively, changed.
  • the prefabricated sheet metal blank having a thickness that is variable only in a first direction is preferably taken out of a metal strip which was produced by a method for flexibly rolling, i.e., tailor-rolled blanks.
  • the thickness as a rule, varies only in the rolling direction.
  • the prefabricated sheet metal blank having the variable thickness is taken from a metal strip that was soldered or welded from several metal sheets, i.e., tailor-welded blanks.
  • the sheet metal blank produced by the tailor-rolled blank method or the tailor-welded blank method may be taken, or cut, from a strip and reworked only locally. This minimizes the loss of material for the reworking,such as when a cutting process is used.
  • the cutting reworking, as well as the restamping, can additionally be carried out in a rapid and cost-effective manner.
  • the transitions between the areas having a different thickness can be optimized in a circumferential manner. That is, it can be further developed to be particularly soft and optimized with respect to strength.
  • FIGS. 1 a and 1 b are two views of a sheet metal blank, according to the present disclosure, the two views being 90° perpendicular to one another.
  • FIGS. 2 a and 2 b are two views of the sheet metal blank of FIG. 1 after a further machining, according to the present disclosure, the two views being 90° perpendicular to one another.
  • FIG. 3 is a schematic view of the sheet metal blank from FIG. 1 showing a reworking by a milling tool.
  • FIG. 4 is a schematic view of the sheet metal blank from FIG. 1 showing a reworking by a stamping tool.
  • FIGS. 1 a and b illustrate two views of a sheet metal blank 1 which are 90° perpendicular to one another.
  • Sheet metal blank 1 is cut from a metal strip and has a variable thickness along its length.
  • Metal strips of this type can be cost-effectively produced by either a tailor-rolled blank method or a tailor-welded blank method.
  • the metal strips may be provided in a wound condition or as a strip product for further processing. Then, the contour of FIG. 1 is cut out.
  • the sheet metal blank 1 from FIG. 1 extends in a flat manner in the X-Y plane.
  • the sheet metal blank 1 for example, has a variable thickness Z, such as areas 2 , 3 , 4 with a different thickness at first only in the X-direction.
  • the thickness Z of the sheet metal blank 1 is constant in the Y-direction extending perpendicular to the X-direction.
  • the thickness Z of the prefabricated sheet metal blank 1 is changed by a partial local reworking in at least one or more areas, such as areas 5 , 6 .
  • the thickness is changed such that, as a result of the reworking, the sheet metal blank 1 has a variable thickness Z not only in the longitudinal direction X of the metal strip from which it was cut but also perpendicularly thereto in the Y-direction.
  • the method provides for especially low losses in the strip of material from which the metal blanks are cut.
  • the resulting sheet metal blank 1 as shown in FIG. 2 , is particularly suitable for the further processing into a vehicle body part.
  • the partial thickness change for the production of the sheet metal blank 1 may preferably take place by a cutting process and, may also take place, by a local milling.
  • the local milling may be performed by milling tool 7 , as shown in FIG. 3 .
  • the partial thickness change can also take place by cold or hot stamping.
  • cold or hot stamping may be performed using die parts 8 , 9 , as shown in FIG. 4 .
  • the reworking of the tailor-rolled or tailor-welded sheet metal blanks provided with a variable thickness in one direction milling have the advantage that the loss of material and the machining expenditures for the variation of the thickness in two mutually perpendicular directions can be kept relatively low.
  • the stamping can be carried out rapidly and easily.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Metal Rolling (AREA)
US12/428,155 2008-04-23 2009-04-22 Method of producing sheet metal blanks having a varing thickness Abandoned US20090266135A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008020473.0 2008-04-23
DE102008020473A DE102008020473A1 (de) 2008-04-23 2008-04-23 Verfahren zur Herstellung von in der Dicke variierenden Blechplatinen

Publications (1)

Publication Number Publication Date
US20090266135A1 true US20090266135A1 (en) 2009-10-29

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US12/428,155 Abandoned US20090266135A1 (en) 2008-04-23 2009-04-22 Method of producing sheet metal blanks having a varing thickness

Country Status (3)

Country Link
US (1) US20090266135A1 (de)
EP (1) EP2111937A1 (de)
DE (1) DE102008020473A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102847785A (zh) * 2011-06-29 2013-01-02 英业达股份有限公司 一次性冲压成型的工艺方法以及cpu背板的制造方法
JP2013046920A (ja) * 2011-08-29 2013-03-07 Honda Motor Co Ltd テーラードブランク材の成形方法、装置およびパネル
US20150308278A1 (en) * 2014-04-24 2015-10-29 Techspace Aero S.A. Integral Bent Housing for an Axial Turbomachine Compressor
US20160271663A1 (en) * 2015-03-19 2016-09-22 Ford Global Technologies, Llc Method for producing a structural element
US10226809B2 (en) 2015-03-13 2019-03-12 Benteler Automobiltechnik Gmbh Method for producing a shaped sheet metal part having wall thicknesses differing from each other by region, and axle subframe
JP2020131281A (ja) * 2019-02-26 2020-08-31 トヨタ自動車株式会社 テーラードブランク材の製造方法
US10930943B2 (en) 2018-01-08 2021-02-23 Bloom Energy Corporation Fuel cell system including inductive heating element and method of using same
CN113579015A (zh) * 2020-04-30 2021-11-02 中国商用飞机有限责任公司 一种变厚度薄壁构件加工方法
US11623729B2 (en) * 2018-06-29 2023-04-11 Airbus Operations Gmbh Method for producing a crossmember for a vehicle and a crossmember for a vehicle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010055148B4 (de) 2010-12-18 2016-10-27 Tu Bergakademie Freiberg Verfahren zur Herstellung formgehärteter Bauteile
DE102011007937B4 (de) * 2011-01-03 2015-09-10 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen eines Strukturbauteils einer Kraftfahrzeugkarosserie
DE102011001320A1 (de) * 2011-03-16 2012-10-04 Muhr Und Bender Kg Verfahren zur Herstellung von Blechplatinen aus Bandmaterial
DE102011051345A1 (de) * 2011-06-27 2012-12-27 Muhr Und Bender Kg Verfahren und Vorrichtung zum Herstellen von Platinen mit unterschiedlichen Dicken
DE102011117265A1 (de) * 2011-10-28 2013-05-02 GEDIA Gebrüder Dingerkus GmbH Verfahren zur Herstellung eines Formteiles aus hochfestem oder höchstfestem Stahl
DE102014201611A1 (de) 2014-01-30 2015-07-30 Volkswagen Aktiengesellschaft Bidirektionale Tailored Rolled Platine
DE102014114365A1 (de) * 2014-10-02 2016-04-07 Thyssenkrupp Steel Europe Ag Mehrschichtiges Stahlflachprodukt und daraus hergestelltes Bauteil
ITUB20160442A1 (it) * 2016-02-04 2017-08-04 Fiat Ricerche Procedimento per la laminazione di lamiere metalliche con spessore variabile
CN111112704A (zh) * 2019-12-30 2020-05-08 中国航发湖南南方宇航工业有限公司 一种侧面带有拐角的板类零件的侧面加工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1760560A (en) * 1929-01-31 1930-05-27 Cleveland Welding Co Method of making hub shells and like tubular metal articles
US20030046814A1 (en) * 2001-09-13 2003-03-13 Benteler Automobiltechnik Gmbh & Co. Kg Method of making a sheet metal article with zones of different thickness
US20040107757A1 (en) * 2002-10-02 2004-06-10 Benteler Automobiltechnik Gmbh Method of making structural components
US20060131927A1 (en) * 2004-12-17 2006-06-22 Blust Jason A Vehicle door beam with reinforced tab and method for making the same
US20070107203A1 (en) * 2005-10-25 2007-05-17 Benteler Automobiltechnik Gmbh Method of making a shaped sheet-metal part

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10180470A (ja) * 1996-12-19 1998-07-07 Nissan Motor Co Ltd 差厚テーラードブランク材の形成方法および差厚テーラードブランク材
DE19962754A1 (de) 1999-08-06 2001-02-15 Muhr & Bender Kg Verfahren zum flexiblen Walzen eines Metallbandes
DE10113610C2 (de) * 2001-03-20 2003-04-17 Reiner Kopp Verfahren und Walzvorrichtung zur Ausbildung von dickenprofiliertem einstückigem Walzgut
US7416105B2 (en) * 2005-05-06 2008-08-26 The Boeing Company Superplastically forming of friction welded structural assemblies

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1760560A (en) * 1929-01-31 1930-05-27 Cleveland Welding Co Method of making hub shells and like tubular metal articles
US20030046814A1 (en) * 2001-09-13 2003-03-13 Benteler Automobiltechnik Gmbh & Co. Kg Method of making a sheet metal article with zones of different thickness
US20040107757A1 (en) * 2002-10-02 2004-06-10 Benteler Automobiltechnik Gmbh Method of making structural components
US20070119525A1 (en) * 2002-10-02 2007-05-31 Wilhelm Arns Structural component
US20060131927A1 (en) * 2004-12-17 2006-06-22 Blust Jason A Vehicle door beam with reinforced tab and method for making the same
US20070107203A1 (en) * 2005-10-25 2007-05-17 Benteler Automobiltechnik Gmbh Method of making a shaped sheet-metal part

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102847785A (zh) * 2011-06-29 2013-01-02 英业达股份有限公司 一次性冲压成型的工艺方法以及cpu背板的制造方法
JP2013046920A (ja) * 2011-08-29 2013-03-07 Honda Motor Co Ltd テーラードブランク材の成形方法、装置およびパネル
US20150308278A1 (en) * 2014-04-24 2015-10-29 Techspace Aero S.A. Integral Bent Housing for an Axial Turbomachine Compressor
US10196909B2 (en) * 2014-04-24 2019-02-05 Safran Aero Boosters Sa Method for producing an integral bent housing for an axial turbomachine compressor
US10226809B2 (en) 2015-03-13 2019-03-12 Benteler Automobiltechnik Gmbh Method for producing a shaped sheet metal part having wall thicknesses differing from each other by region, and axle subframe
US20160271663A1 (en) * 2015-03-19 2016-09-22 Ford Global Technologies, Llc Method for producing a structural element
US10518306B2 (en) * 2015-03-19 2019-12-31 Ford Global Technologies, Llc Method for producing a structural element
US10930943B2 (en) 2018-01-08 2021-02-23 Bloom Energy Corporation Fuel cell system including inductive heating element and method of using same
US11623729B2 (en) * 2018-06-29 2023-04-11 Airbus Operations Gmbh Method for producing a crossmember for a vehicle and a crossmember for a vehicle
JP2020131281A (ja) * 2019-02-26 2020-08-31 トヨタ自動車株式会社 テーラードブランク材の製造方法
JP7081531B2 (ja) 2019-02-26 2022-06-07 トヨタ自動車株式会社 テーラードブランク材の製造方法
CN113579015A (zh) * 2020-04-30 2021-11-02 中国商用飞机有限责任公司 一种变厚度薄壁构件加工方法

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Publication number Publication date
DE102008020473A1 (de) 2009-10-29
EP2111937A1 (de) 2009-10-28

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AS Assignment

Owner name: BENTELER AUTOMOBILTECHNIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KNAUP, HANS-JURGEN;REEL/FRAME:022772/0136

Effective date: 20090408

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION