EP1253208B1 - Verfahren zur Herstellung eines gehärteten Blechprofils - Google Patents

Verfahren zur Herstellung eines gehärteten Blechprofils Download PDF

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Publication number
EP1253208B1
EP1253208B1 EP02008690A EP02008690A EP1253208B1 EP 1253208 B1 EP1253208 B1 EP 1253208B1 EP 02008690 A EP02008690 A EP 02008690A EP 02008690 A EP02008690 A EP 02008690A EP 1253208 B1 EP1253208 B1 EP 1253208B1
Authority
EP
European Patent Office
Prior art keywords
metal profile
sheet metal
sheet
press tool
collars
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
EP02008690A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1253208A1 (de
Inventor
Ludger Gehringhoff
Hans-Jürgen Knaup
Udo Dr. Klasfauseweh
Werner Böhmer
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
Publication of EP1253208A1 publication Critical patent/EP1253208A1/de
Application granted granted Critical
Publication of EP1253208B1 publication Critical patent/EP1253208B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B21D19/088—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
    • 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
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals

Definitions

  • the invention relates to a method for producing a hardened sheet metal profile from a circuit board or semi-finished product in accordance with the measures in The preamble of claim 1.
  • the openings in the Sheet metal profile should serve as feedthrough holes for fastening screws. It is conceivable such holes also for the orientation of the sheet metal profile in subsequent manufacturing operations.
  • Unfavorable is the prefabrication of the holes in the output board. This is associated with additional manufacturing and logistics effort. Also is the Dimensional accuracy of the manufactured sheet profile in the dependence of the pre-perforation posed. If the given tolerances are left, that is Sheet metal profile unusable. Especially with metal profiles with komliziertren Geometries must be calculated with a larger scrap in the blank of the boards become.
  • the hot forming and curing in the press tool has due to the through the combination of forming and tempering process in one tool rational operation generally benefits. It can, however, despite the restraint the sheet metal profile in the tool due to thermal stress come to not exactly predeterminable delay on the component. This can be detrimental to downstream manufacturing operations. Remedy here can create reference points on the sheet metal profile, the position orientation the sheet metal profile in subsequent manufacturing operations be used.
  • the invention is therefore based on the known in the art Process the task based, this more rational and efficient to design and improve the production process of sheet metal profiles.
  • the starting material is a board made of hardenable steel sheet Commitment. This can already experience a shape-preparing profile section to have. Also preformed sheet metal parts as semi-finished products can according to the invention be further processed.
  • the collars produced in the press tool in or on the sheet profile can as reference points for positional orientation of the sheet metal profile in subsequent Manufacturing operations or for stiffening the sheet metal profile or as mounting holes serve.
  • a board or a semi-finished product made of a steel is used, in terms of weight percent consists of carbon (C) 0.19 to 0.25, silicon (Si) 0.15 to 0.50, manganese (Mn) 1.10 to 1.40, titanium (Ti) 0.020 to 0.050, boron (B) 0.002 to 0.005, aluminum (AI) 0.02 to 0.06, and Phosphate (P) in a proportion up to max. 0.025, sulfur (S) max. 0,015, Chrome (Cr) max. 0.35 and molybdenum (Mo) max. 0.35, with the remainder iron (Fe) is including contaminants due to melting.
  • the plate or the semifinished product made of sheet steel is heated to the curing temperature, that is to a temperature above Ac 3 , where the steel is in an austenitic state. As a rule, this temperature is between 775 ° C and 1000 ° C.
  • the forming process takes place in the press tool, whereupon hardening begins by cooling.
  • a fine-grained martensitic or bainitic material structure arises.
  • the sheet profile is clamped during the curing process in the press tool.
  • the case made cooling can be carried out directly or indirectly. In direct cooling, the sheet metal profile is brought directly into contact with a coolant. In indirect cooling, the press tool or parts thereof is cooled.
  • the collar in shape produced by marginal stampings on the sheet metal profile. This is a collar at the edge of the component during the pressing process before hardening without cutting produced.
  • the collars serve as reference points for the position orientation of the Sheet metal profiles in subsequent manufacturing operations. Based on the reference points The sheet profile is recorded or aligned. This is from particular advantage, because it as a result of the hot forming process at the formed Sheet metal profile can not come to exact predeterminable delay. However, a positional orientation can be ensured via the reference points which the subsequent manufacturing operations are based on. This will ensure a consistent quality and reproducibility as well ensured in a high volume production.
  • the collars can also contribute to the stiffening of the sheet metal profile.
  • a pot-like shape can first be formed be formed on the sheet metal profile, the bottom then is separated out, as this claim 4 provides.
  • FIG. 1 shows a sheet-metal profile 1 or a section thereof with an edge-side Collar in the form of an embossed image on the image plane 2.
  • the sheet metal profile 1 is made from an initially flat board 3 Made of sheet steel.
  • the board 3 is in the figure 1 by the dashed Indicated line.
  • the board 3 in thermoformed a press tool, and at a curing temperature between 700 ° C and 1100 ° C. Still clamped in the press tool If the sheet metal profile 1 has then been hardened by rapid cooling.
  • the embossment 2 is produced on the sheet metal profile 1 Service.
  • Such embossment 2 at the edge of the sheet metal profile 1 serves as Reference point for positional orientation of the sheet metal profile 1 in subsequent Manufacturing operations. It can be seen that the embossment 2 is out of the plane the sheet metal profile 1 and the original board 3 protrudes.
  • FIG. 2 shows a press tool 4 with a lower die 5, an upper punch 6 and a hold-down 7, the component (board) fixed in the press tool 4.
  • the stamp 6 is bem forming process lowered from its upper starting position. At the decline of the stamp 6 is first a pot-like shape of the board or from this thermoformed sheet metal profile 8 produced. Upon reaching the cutting edge 9 on the die 5 is through the punch 6, the sheet metal blank at the bottom 10 of Forming cut out.
  • the created setting 11 in the sheet metal profile 8 serves according to the invention as a reference point for alignment and Orientation of the sheet metal section 8 for stiffening the sheet metal profile or as Mounting hole for carrying a screw or the like. As before also described the sheet metal profile 8 is clamped in the press tool 4 hardened.
  • a circuit board is produced 13 held in a lower die 14 by a hold-15.
  • the left half shows the initial position of the board 13 in the press tool 12 before the forming process.
  • the board 13 through the upper Downholder 15 and a lower punch 16 clamped.
  • the lower Stamp 16 is located centrally in the free-form space 17 of the die 14.
  • In the hold 15 is a cutting tool in the form of a hole and setting sleeve 18 guided displaced arranged. This separates when with the hub of the press tool 12 conforming cutting operation in the downward movement an opening 19 in the board 13 and the generated therefrom Metal profile 20.
  • the edge-side regions 21 of the opening 19 changed over like a collar and so creates a passage 22 in the sheet metal profile 20.
  • the section shown in Figure 3 of a sheet metal profile 8 and 20 shows an adjustment 12, 22, as they are in a procedure according to the Figures 2 and 4 described, has been generated.
  • the reference points become the recording and orientation of a sheet metal profile 8, 20 in cutting operations, such as laser cutting, joining operations etc. used.
  • Also for coordinate acquisition and Adjustment of the sheet metal profile 8, 20 in numerically controlled systems can the reference points are used.
  • the throws 12 and 22 but also for stiffening or serve as mounting holes in the sheet metal profile 8, 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP02008690A 2001-04-27 2002-04-18 Verfahren zur Herstellung eines gehärteten Blechprofils Expired - Lifetime EP1253208B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10120919A DE10120919A1 (de) 2001-04-27 2001-04-27 Verfahren zur Herstellung eines gehärteten Blechprofils
DE10120919 2001-04-27

Publications (2)

Publication Number Publication Date
EP1253208A1 EP1253208A1 (de) 2002-10-30
EP1253208B1 true EP1253208B1 (de) 2004-07-07

Family

ID=7683093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008690A Expired - Lifetime EP1253208B1 (de) 2001-04-27 2002-04-18 Verfahren zur Herstellung eines gehärteten Blechprofils

Country Status (5)

Country Link
EP (1) EP1253208B1 (cs)
AT (1) ATE270713T1 (cs)
CZ (1) CZ298312B6 (cs)
DE (2) DE10120919A1 (cs)
ES (1) ES2223991T3 (cs)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054866A1 (de) 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugkarosseriebauteils sowie Kraftfahrzeugkarosseriebauteil
DE102011117066A1 (de) 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Vorrichtung zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugkarosseriebauteils sowie Verfahren zur Herstellung
DE102014004165A1 (de) 2014-03-22 2015-09-24 Audi Ag Blechbauteil mit Prägekontur

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE478971T1 (de) * 2003-07-29 2010-09-15 Voestalpine Stahl Gmbh Verfahren zum herstellen von geharteten bauteilen aus stahlblech
DE10341867B4 (de) * 2003-09-09 2012-03-08 Volkswagen Ag Verfahren und Vorrichtung zur Herstellung eines gehärteten Blechprofils
DE102004019693B4 (de) * 2004-04-20 2017-10-26 Volkswagen Ag Verfahren zum Herstellen eines gehärteten Blechprofils
DE102004038626B3 (de) * 2004-08-09 2006-02-02 Voestalpine Motion Gmbh Verfahren zum Herstellen von gehärteten Bauteilen aus Stahlblech
DE102004062777B4 (de) * 2004-12-21 2006-11-09 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines gehärteten Karosseriebauteils
DE102005041741B4 (de) * 2005-09-02 2010-03-18 Daimler Ag Verfahren zum Herstellen eines pressgehärteten Bauteils
DE102006015666B4 (de) 2006-04-04 2024-02-29 Magna International Inc. Verfahren zur Herstellung eines metallischen Formbauteils durch Warmumformen mit simultaner Beschneideoperation
DE102006026805A1 (de) * 2006-06-07 2008-01-03 Automotive Group Ise Innomotive Systems Europe Gmbh Vorrichtung und Verfahren zum Warmumformen eines Halbzeugs
DE102006035951B4 (de) * 2006-07-31 2019-09-05 Mahle International Gmbh Wärmetauscher in Plattenbauweise, insbesondere Verdampfer und Vorrichtung zur Montage eines Sammlers in Plattenbauweise
DE102007002678A1 (de) * 2007-01-18 2008-07-24 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen eines warmumgeformten Blechbauteils
DE102007050907A1 (de) * 2007-10-23 2009-04-30 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines gehärteten Blechprofils
DE102008053878B4 (de) * 2008-10-30 2011-04-21 Benteler Automobiltechnik Gmbh Warmformbauteil und Verfahren zur Herstellung eines Warmformbauteils
DE102008056971B3 (de) * 2008-11-13 2009-12-31 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines Bauteils, insbesondere eines aus mehreren miteinander verbundenen Bauteilen bestehenden Bauteilverbunds
DE102009038607A1 (de) * 2009-08-26 2011-03-31 Tox Pressotechnik Gmbh & Co. Kg Vorrichtung, Verfahren und Werkzeug zur Herstellung eines Kragendurchzuges in einem Bauteil
FR2996473A1 (fr) * 2012-10-10 2014-04-11 Renault Sa Emboutissage et formation d’un collet au moins partiellement simultanes
DE102013105489B3 (de) 2013-05-28 2014-07-31 Thyssenkrupp Steel Europe Ag Verfahren zum Warmumformen von dünnen Halbzeugen
EP3060687B1 (en) * 2013-10-21 2021-04-21 Magna International Inc. Method for trimming a hot formed part
DE102014109773A1 (de) * 2014-07-11 2016-01-14 Thyssenkrupp Ag Verfahren zur Herstellung eines pressgehärteten Bauteils
DE102015101377A1 (de) * 2015-01-30 2016-08-04 Thyssenkrupp Ag Verfahren und Vorrichtung zur Herstellung eines Kragens an einem Werkstück
DE202017104885U1 (de) 2017-08-14 2017-10-05 Kirchhoff Automotive Deutschland Gmbh Pressumgeformte Metallplatine sowie Pressumformwerkzeug zum Herstellen einer solchen Metallplatine
DE102017118495A1 (de) 2017-08-14 2019-02-14 Kirchhoff Automotive Deutschland Gmbh Pressumgeformte Metallplatine sowie Pressumformwerkzeug zum Herstellen einer solchen Metallplatine

Family Cites Families (5)

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SE435527B (sv) * 1973-11-06 1984-10-01 Plannja Ab Forfarande for framstellning av en detalj av herdat stal
SE380606B (sv) * 1973-11-30 1975-11-10 Gebelius Sven Runo Vilhelm Sett att astadkomma anslutning av en rorformad hylsa till en platvegg jemte en anordning for verkstellande av settet
AT390744B (de) * 1988-08-05 1990-06-25 Vaillant Gmbh Verfahren zur herstellung einer oeffnung in einem blech sowie stanzwerkzeug zur durchfuehrung dieses verfahrens
US5606888A (en) * 1995-07-14 1997-03-04 The Whitaker Corp. Method of forming relatively hard materials
SE510056C2 (sv) * 1997-08-07 1999-04-12 Ssab Hardtech Ab Sätt att tillverka en härdad ståldetalj

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054866A1 (de) 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugkarosseriebauteils sowie Kraftfahrzeugkarosseriebauteil
DE102011117066A1 (de) 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Vorrichtung zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugkarosseriebauteils sowie Verfahren zur Herstellung
DE102014004165A1 (de) 2014-03-22 2015-09-24 Audi Ag Blechbauteil mit Prägekontur

Also Published As

Publication number Publication date
CZ298312B6 (cs) 2007-08-22
ATE270713T1 (de) 2004-07-15
DE10120919A1 (de) 2002-10-31
EP1253208A1 (de) 2002-10-30
ES2223991T3 (es) 2005-03-01
DE50200587D1 (de) 2004-08-12

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