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US20100199737A1 - Method for producing elongated, peripherally contoured shaped blanks from a metal strip - Google Patents

Method for producing elongated, peripherally contoured shaped blanks from a metal strip Download PDF

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Publication number
US20100199737A1
US20100199737A1 US12/699,527 US69952710A US2010199737A1 US 20100199737 A1 US20100199737 A1 US 20100199737A1 US 69952710 A US69952710 A US 69952710A US 2010199737 A1 US2010199737 A1 US 2010199737A1
Authority
US
United States
Prior art keywords
blanks
starting
metal strip
shaped
rolling mill
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
US12/699,527
Other languages
English (en)
Inventor
Markus Pellmann
Stefan Adelbert
Otto Buschsieweke
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
Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Assigned to BENTELER AUTOMOBILTECHNIK GMBH reassignment BENTELER AUTOMOBILTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ADELBERT, STEFAN, BUSCHSIEWEKE, OTTO, PELLMANN, MARKUS
Publication of US20100199737A1 publication Critical patent/US20100199737A1/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/06—Making more than one part out of the same blank; Scrapless working
    • 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
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • 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

Definitions

  • the invention relates to a method for producing elongated, peripherally contoured shaped blanks from a metal strip according to the features of the preamble of claim 1 .
  • chassis parts Peripherally contoured, elongated shaped blanks as a starting material for chassis parts of automobiles are known. Such chassis parts are used to produce, for example, A, B or C columns. Such components are subject to different stress in different longitudinal sections. For this reason, the wall thickness is changed in certain regions to optimally adapt to stress present at different heights while also minimizing material consumption.
  • interleaved starting blanks with a constant thickness are initially stamped from a metal strip.
  • the position of the initial blanks is then selected depending on their desired peripheral contours so as to optimize utilization of the metal strip.
  • waste can be reduced between 10% and 30% by suitable interleaving. The economy of the process and the yield are significantly improved.
  • the starting blanks are stamped and subsequently guided separately through a rolling mill in their longitudinal direction and rolled into shaped blanks with regions of thickness that vary over the length of the shaped blanks.
  • the fact that the material is elongated when the starting blanks are rolled into the shaped blanks has to be taken into account when planning the interleaved positions of the starting blanks on the metal strip.
  • the invention has proven to be particularly advantageous when the shaped blanks have a substantially T-shaped periphery.
  • starting blanks with a periphery having a substantially T-shaped contour are arranged with interleaved transverse or longitudinal positions in relation to the longitudinal direction of the metal strip and stamped out.
  • the stamped-out starting blanks are then separately rolled into shaped blanks, before they are shaped in an additional contouring step into shaped bodies, such as for example A, B or C columns of an automobile chassis.
  • the starting blanks are according to claim 3 guided through the rolling mill with an effective pretension along their longitudinal direction. This can be accomplished with suitable devices.
  • the thickness of the stamped starting blanks is measured according to claim 4 before insertion into a rolling mill.
  • the starting blanks are then rolled in the rolling mill into shaped blanks by taking into account the measured thickness tolerances.
  • starting blanks can be stamped from individual metal strips, such as sheet metal, or the stamping process can be integrated into a continuous production sequence.
  • the features of claim 5 provide that the starting blanks are stamped from a steel tape unwound from a coil. The starting blanks are then guided through a rolling mill separately and along their longitudinal orientation, where they are rolled into shaped blanks having different thickness regions.
  • FIG. 1 shows in a top view a longitudinal section of a steel tape
  • FIG. 2 shows in a top view a starting blank stamped from the steel tape
  • FIG. 3 shows schematically in a side view a starting blank before, during and after passage to a rolling mill
  • FIG. 4 shows a top view on the illustration of FIG. 3 ;
  • FIG. 5 shows in a top view a shaped blanks rolled from the starting blank.
  • the reference symbol 1 indicates a metal strip as component of a steel tape 2 of unspecified length and constant thickness D over its entire length.
  • the steel tape 2 can be drawn from an unillustrated coil.
  • the steel tape 2 is moved through an unillustrated stamping tool, where contoured starting blanks 3 having an essentially T-shaped periphery are stamped from the steel tape 2 , as illustrated in FIG. 2 .
  • the stamping operation is performed in that the starting blanks 3 are stamped out from the steel tape 2 , wherein the starting blanks 3 are arranged on the steel tape 2 in an interleaved pattern oriented transverse to the longitudinal direction of the steel tape 2 .
  • the amount of residual material 4 left behind, i.e. waste material is significantly reduced compared to a stamping operation in which the starting blanks are cut out parallel to the longitudinal direction of the steel tape 2 .
  • the planned interleaved position of the starting blanks 3 before stamping is indicated in FIG. 1 by hatching.
  • the starting blanks 3 can also be arranged on the steel tape 2 so as to be interleaved in the longitudinal direction of the steel tape 2 , whereafter they are stamped out.
  • the starting blanks 3 are stamped out, they are guided through the roiling mill 5 with a longitudinal orientation, as shown in FIGS. 3 and 4 , where they are rolled into shaped blanks 6 commensurate with the respective predefined dimensions with regions A, B, C of different thickness that vary over the length L (see also FIG. 5 ).
  • the starting blanks 3 When the starting blanks 3 are rolled, they are guided through the rolling mill 5 with an effective pretension that varies in the longitudinal direction of the starting blanks 3 . This is done using conventional equipment which are not illustrated in detail in the Figures.
  • the thickness D 1 of the starting blanks 3 is measured before their insertion in the rolling mill 5 , whereafter they are rolled in the rolling mill 5 into shaped blanks 6 , taking into consideration the measured thickness tolerances, as indicated in FIGS. 3 to 5 .
  • the shaped blank 6 of FIGS. 3 to 5 is different from a starting blank according to FIGS. 2 to 4 in that the starting blank 3 has a length L that is shorter than the length L 1 of the shaped blank 6 , because the starting blank 3 is elongated as a result of the rolling operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Metal Rolling (AREA)
  • Punching Or Piercing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US12/699,527 2009-02-06 2010-02-03 Method for producing elongated, peripherally contoured shaped blanks from a metal strip Abandoned US20100199737A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009007926.2 2009-02-06
DE102009007926A DE102009007926A1 (de) 2009-02-06 2009-02-06 Verfahren zur Herstellung von umfangsseitig konturierten länglichen Formplatinen aus einem Metallstreifen

Publications (1)

Publication Number Publication Date
US20100199737A1 true US20100199737A1 (en) 2010-08-12

Family

ID=42212169

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/699,527 Abandoned US20100199737A1 (en) 2009-02-06 2010-02-03 Method for producing elongated, peripherally contoured shaped blanks from a metal strip

Country Status (5)

Country Link
US (1) US20100199737A1 (de)
EP (1) EP2216109B1 (de)
JP (1) JP5235919B2 (de)
AT (1) ATE510638T1 (de)
DE (1) DE102009007926A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130283881A1 (en) * 2011-06-27 2013-10-31 Muhr Und Bender Kg Process of and Device For Producing Metal Blanks With Different Thicknesses
US20150336617A1 (en) * 2013-09-30 2015-11-26 Hyundai Motor Company Outer panel for pillar of vehicle, and method and rolling apparatus for manufacturing the same
US9234369B2 (en) 2012-03-21 2016-01-12 Carrier Corporation Furnace door latch assembly
US9340233B2 (en) 2010-10-15 2016-05-17 Benteler Automobiltechnik Gmbh Method for producing a hot-formed and press-hardened metal component
US9616488B2 (en) 2011-09-16 2017-04-11 Benteler Automobiltechnik Gmbh Method for producing structural components and chassis components by hot forming, and heating station
US9694408B2 (en) 2012-11-07 2017-07-04 Benteler Automobiltechnik Gmbh Hot forming line and method for producing a hot formed and press hardened motor vehicle part
US20170225208A1 (en) * 2016-02-04 2017-08-10 C.R.F. Societa Consortile Per Azioni Method for rolling metal sheets with variable thickness

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011001320A1 (de) * 2011-03-16 2012-10-04 Muhr Und Bender Kg Verfahren zur Herstellung von Blechplatinen aus Bandmaterial
RU2483860C2 (ru) * 2011-06-10 2013-06-10 Артем Борисович Петров Способ закругления кромок
DE102016200520B4 (de) 2015-03-19 2019-10-31 Ford Global Technologies, Llc Verfahren zur Herstellung eines Strukturbauteils sowie Walzeinrichtung
EP3213834A1 (de) * 2016-03-04 2017-09-06 Benteler Automobiltechnik GmbH Platinenausschneidevorrichtung zum ausschneiden eines platinenstücks aus einem metallband

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US213621A (en) * 1879-03-25 Improvement in the manufacture of scissors
US306849A (en) * 1884-10-21 Manufacture of razor-blades
US1576304A (en) * 1921-01-10 1926-03-09 American Fork & Hoe Co Method of and apparatus for making implement sockets
US2186602A (en) * 1936-11-13 1940-01-09 Bosbach Peter Process for the production of rolled and stamped table and kitchen articles
US3282017A (en) * 1963-05-14 1966-11-01 Frank C Rothermel Method of providing increased strength to composite beam construction
US3776012A (en) * 1971-05-11 1973-12-04 Schmitz Walzmasch Method of rolling cutlery pieces
US4320647A (en) * 1979-02-22 1982-03-23 Volvo Car B.V. Method of and apparatus for making elements with profiled cross-section from sheet metal
US4379395A (en) * 1980-02-20 1983-04-12 Hitachi, Ltd. Interstand tension control system and method for tandem rolling mill
US4656854A (en) * 1985-09-06 1987-04-14 Aluminum Company Of America Rolling mill eccentricity compensation using measurement of sheet tension
US5499523A (en) * 1993-10-19 1996-03-19 Danieli United, Inc. Method for producing metal strips having different thicknesses from a single slab
US5699693A (en) * 1994-09-14 1997-12-23 Hitachi, Ltd. Widthwise compressing machine and method using vibrations to reduce material width
US5720196A (en) * 1995-04-18 1998-02-24 Kawasaki Steel Corporation Hot-rolling method of steel piece joint during continuous hot-rolling
US20070144229A1 (en) * 2005-12-01 2007-06-28 Sapa Heat Transfer Ab Method for reducing shearing and crop losses at rolling of assembled slabs
US7546755B2 (en) * 2002-10-02 2009-06-16 Benteler Automobiltechnik Gmbh Structural component

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0220697A (ja) * 1988-07-06 1990-01-24 Suehiro Uchiyama プレス機及びその類似機における補助装置
DE19704300B4 (de) * 1997-02-06 2008-07-10 Benteler Ag Verfahren zur Herstellung von Platinen mit unterschiedlichen Dicken
JP4603180B2 (ja) * 2001-02-21 2010-12-22 本田技研工業株式会社 圧延方法
DE10113610C2 (de) * 2001-03-20 2003-04-17 Reiner Kopp Verfahren und Walzvorrichtung zur Ausbildung von dickenprofiliertem einstückigem Walzgut
JP4668454B2 (ja) * 2001-04-27 2011-04-13 本田技研工業株式会社 車体パネルの成形方法
JP2008264850A (ja) * 2007-04-24 2008-11-06 Honda Motor Co Ltd 差厚板の圧延装置

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US213621A (en) * 1879-03-25 Improvement in the manufacture of scissors
US306849A (en) * 1884-10-21 Manufacture of razor-blades
US1576304A (en) * 1921-01-10 1926-03-09 American Fork & Hoe Co Method of and apparatus for making implement sockets
US2186602A (en) * 1936-11-13 1940-01-09 Bosbach Peter Process for the production of rolled and stamped table and kitchen articles
US3282017A (en) * 1963-05-14 1966-11-01 Frank C Rothermel Method of providing increased strength to composite beam construction
US3776012A (en) * 1971-05-11 1973-12-04 Schmitz Walzmasch Method of rolling cutlery pieces
US4320647A (en) * 1979-02-22 1982-03-23 Volvo Car B.V. Method of and apparatus for making elements with profiled cross-section from sheet metal
US4379395A (en) * 1980-02-20 1983-04-12 Hitachi, Ltd. Interstand tension control system and method for tandem rolling mill
US4656854A (en) * 1985-09-06 1987-04-14 Aluminum Company Of America Rolling mill eccentricity compensation using measurement of sheet tension
US5499523A (en) * 1993-10-19 1996-03-19 Danieli United, Inc. Method for producing metal strips having different thicknesses from a single slab
US5699693A (en) * 1994-09-14 1997-12-23 Hitachi, Ltd. Widthwise compressing machine and method using vibrations to reduce material width
US5720196A (en) * 1995-04-18 1998-02-24 Kawasaki Steel Corporation Hot-rolling method of steel piece joint during continuous hot-rolling
US7546755B2 (en) * 2002-10-02 2009-06-16 Benteler Automobiltechnik Gmbh Structural component
US20070144229A1 (en) * 2005-12-01 2007-06-28 Sapa Heat Transfer Ab Method for reducing shearing and crop losses at rolling of assembled slabs
US8096160B2 (en) * 2005-12-01 2012-01-17 Sapa Heat Transfer Ab Method for reducing shearing and crop losses at rolling of assembled slabs

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9340233B2 (en) 2010-10-15 2016-05-17 Benteler Automobiltechnik Gmbh Method for producing a hot-formed and press-hardened metal component
US20130283881A1 (en) * 2011-06-27 2013-10-31 Muhr Und Bender Kg Process of and Device For Producing Metal Blanks With Different Thicknesses
US9616488B2 (en) 2011-09-16 2017-04-11 Benteler Automobiltechnik Gmbh Method for producing structural components and chassis components by hot forming, and heating station
US9234369B2 (en) 2012-03-21 2016-01-12 Carrier Corporation Furnace door latch assembly
US9694408B2 (en) 2012-11-07 2017-07-04 Benteler Automobiltechnik Gmbh Hot forming line and method for producing a hot formed and press hardened motor vehicle part
US20150336617A1 (en) * 2013-09-30 2015-11-26 Hyundai Motor Company Outer panel for pillar of vehicle, and method and rolling apparatus for manufacturing the same
US20170225208A1 (en) * 2016-02-04 2017-08-10 C.R.F. Societa Consortile Per Azioni Method for rolling metal sheets with variable thickness
US10758956B2 (en) * 2016-02-04 2020-09-01 C.R.F. Società Consortile Per Azioni Method for rolling metal sheets with variable thickness

Also Published As

Publication number Publication date
JP2010179368A (ja) 2010-08-19
EP2216109A1 (de) 2010-08-11
EP2216109B1 (de) 2011-05-25
ATE510638T1 (de) 2011-06-15
JP5235919B2 (ja) 2013-07-10
DE102009007926A1 (de) 2010-08-19

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BENTELER AUTOMOBILTECHNIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PELLMANN, MARKUS;ADELBERT, STEFAN;BUSCHSIEWEKE, OTTO;REEL/FRAME:024274/0230

Effective date: 20100222

STCB Information on status: application discontinuation

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