EP1300476B1 - Verfahren zur Herstellung eines gehärteten Blechprofils - Google Patents
Verfahren zur Herstellung eines gehärteten Blechprofils Download PDFInfo
- Publication number
- EP1300476B1 EP1300476B1 EP02019505A EP02019505A EP1300476B1 EP 1300476 B1 EP1300476 B1 EP 1300476B1 EP 02019505 A EP02019505 A EP 02019505A EP 02019505 A EP02019505 A EP 02019505A EP 1300476 B1 EP1300476 B1 EP 1300476B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal profile
- sheet metal
- press tool
- board
- tool
- 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 - Fee Related
Links
Images
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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- 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
-
- 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 an optionally preformed board.
- the term board is subsequently uniform for both a flat sheet steel plate as also used for an already preformed semi-finished product.
- the hot forming and curing in the press tool is due to the combination of forming and tempering process in a tool rational way of working.
- the invention is based on the prior art, the task underlying, a method for producing hardened sheet metal profiles economical and to make it more efficient.
- the shaping of a draft occurs on the board outside the tempering process. As already mentioned, it can be with the board as well to act a preform or a semi-finished product. After the passage created with its protruding collar, the board is heated and in a press tool hot formed into a sheet metal profile. This takes place a final shaping calibration of the draft. Subsequently, the Sheet metal profile still hardened in the press tool.
- the board is provided with one or more passages. These can be of various shape, for example, round or oval.
- the focus is on the measure, in the compensation process only one Calibrate the draft to final dimension. This measure Make sure that the draft with the required accuracy as a reference point for downstream manufacturing operations on the sheet profile can. This can also reduce the tool wear and the Production costs are lowered.
- the procedure is procedural simple, inexpensive and efficient.
- the passages can serve as reference points for the orientation of the sheet metal profile in subsequent manufacturing operations or to stiffen the Sheet metal profiles or serve as mounting holes.
- 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 (Al) 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 pass-through board is heated in the heat treatment plant to cure temperature, that is to a temperature above Ac 3 , where the steel is in 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 passages can with a circumferential collar (claim 2) or a broken collar (claim 3) are produced.
- Figure 1 shows a circuit board 1 made of sheet steel, the pre-punched and with a recess 2 is provided. The edges 3 of the recess 2 are in one next forming process to collar 4 reshaped, so that on the board. 1 a passage 5 is formed, as shown in FIG.
- the one shown here Passage 5 has a circumferential collar 4. Depending on the practical Requirements can also be made a broken collar. In principle, it is also possible for the circuit board 1 in one production step punch and form the passage 5.
- the circuit board 1 provided with the passage 5 is then heated to the curing temperature, that is, to a temperature above Ac 3 .
- the temperature can be set between approx. 700 ° C and approx. 1,100 ° C.
- the steel is then in an austenitic state.
- the board 1 is then inserted into a press tool 6 ( Figure 3) and formed into a sheet metal profile 7. Still clamped in the press tool 6, the sheet metal profile 7 is cured.
- FIG. 3 schematically shows the detail of a press tool 6.
- the steel plate provided with the passage 5 1 is located between an upper tool 8 and a lower tool 9.
- a receptacle 10 is present, the Thread 5 positioned.
- the upper tool 8 has a configurative on the lower tool 9 and the recording 10 matched stamp 11.
- the board 1 is formed into a sheet metal profile 7 and simultaneously the passage 5 is calibrated to its exact gauge. Still in the press tool 6, the sheet metal profile 7 is then clamped by rapid cooling hardened.
- FIG. 4 shows the sheet-metal profile 7 after calibration of the passage 5.
- the diameter d of the passage 5 is around 3 mm, whereas the inner radius r is applied to the collar 4 is reduced by 2 mm.
- the draft 5 thus generated can serve as a reference point for positional orientation serve the sheet metal profile 7 in downstream manufacturing operation. Also to Stiffening a sheet metal profile 7 can passages 5 at appropriate locations be provided. Furthermore, the passages 5 can also be used as mounting holes act.
Description
- Figur 1
- in der Seitenansicht einen Ausschnitt aus einer vorgelochten Stahlblechplatine;
- Figur 2
- die Platine gemäß Figur 1 mit ausgeformtem Durchzug;
- Figur 3
- im Schema ein Pressenwerkzeug mit einer darin angeordneten Platine gemäß Figur 2 und
- Figur 4
- die Platine nach der endformgebenden Kalibrierung des Durchzugs.
- 1 -
- Platine
- 2 -
- Ausnehmung
- 3 -
- Rand v. 2
- 4 -
- Kragen
- 5 -
- Durchzug
- 6 -
- Pressenwerkzeug
- 7 -
- Blechprofil
- 8 -
- Oberwerkzeug
- 9 -
- Unterwerkzeug
- 10 -
- Aufnahme
- 11 -
- Stempel
- d -
- Durchmesser
- r -
- Radius
Claims (3)
- Verfahren zur Herstellung eines gehärteten Blechprofils aus einer gegebenenfalls vorgeformten Platine (1), wobei zunächst an der Platine (1) zumindest ein Durchzug (5) mit einem vorstehenden Kragen (4) ausgeformt wird, wonach die Platine (1) in einem Pressenwerkzeug (6) zum Blechprofil warm umgeformt und gehärtet wird, wobei im Pressenwerkzeug (6) eine endformgebende Kalibrierung des Durchzugs (5) erfolgt.
- Verfahren nach Anspruch 1, wobei ein umlaufender Kragen (4) am Durchzug (5) hergestellt wird.
- Verfahren nach Anspruch 1 wobei ein unterbrochener Kragen am Durchzug hergestellt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10149220 | 2001-10-05 | ||
DE10149220A DE10149220C1 (de) | 2001-10-05 | 2001-10-05 | Verfahren zur Herstellung eines gehärteten Blechprofils |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1300476A2 EP1300476A2 (de) | 2003-04-09 |
EP1300476A3 EP1300476A3 (de) | 2004-09-08 |
EP1300476B1 true EP1300476B1 (de) | 2005-11-02 |
Family
ID=7701545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02019505A Expired - Fee Related EP1300476B1 (de) | 2001-10-05 | 2002-08-31 | Verfahren zur Herstellung eines gehärteten Blechprofils |
Country Status (3)
Country | Link |
---|---|
US (1) | US20030066581A1 (de) |
EP (1) | EP1300476B1 (de) |
DE (1) | DE10149220C1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7998289B2 (en) | 2002-09-13 | 2011-08-16 | Daimler Ag | Press-hardened part and method for the production thereof |
DE10254695B3 (de) * | 2002-09-13 | 2004-04-15 | Daimlerchrysler Ag | Verfahren zur Herstellung eines metallischen Formbauteils |
DE10246164B4 (de) * | 2002-10-02 | 2014-03-20 | Benteler Automobiltechnik Gmbh | Verfahren zum Herstellen von Strukturbauteilen |
DE10322928B3 (de) | 2003-05-21 | 2004-10-21 | Thyssenkrupp Automotive Ag | Verfahren zum Herstellen von Formbauteilen |
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 |
SE525750C2 (sv) * | 2004-06-10 | 2005-04-19 | Scania Cv Abp | Komponent för ett splinesförband samt förfarande och anordning för framställning av en sådan komponent |
DE102005045466B4 (de) * | 2005-09-22 | 2015-10-29 | Volkswagen Ag | Verfahren zur Behandlung von Stahlband |
DE102007050907A1 (de) | 2007-10-23 | 2009-04-30 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines gehärteten Blechprofils |
JP5740099B2 (ja) * | 2010-04-23 | 2015-06-24 | 東プレ株式会社 | 熱間プレス製品の製造方法 |
DE102011054865B4 (de) * | 2011-10-27 | 2016-05-12 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugkarosseriebauteils sowie Kraftfahrzeugkarosseriebauteil |
JP6171601B2 (ja) | 2013-06-12 | 2017-08-02 | 株式会社豊田自動織機 | スクロール型圧縮機の自転防止機構 |
DE102014109773A1 (de) | 2014-07-11 | 2016-01-14 | Thyssenkrupp Ag | Verfahren zur Herstellung eines pressgehärteten Bauteils |
DE102014011973A1 (de) * | 2014-08-15 | 2016-02-18 | Kiekert Aktiengesellschaft | Verfahren zur Herstellung eines Kraftfahrzeugtürschlosses |
US10767756B2 (en) * | 2015-10-13 | 2020-09-08 | Magna Powertrain Inc. | Methods of forming components utilizing ultra-high strength steel and components formed thereby |
CN105598280A (zh) * | 2015-12-25 | 2016-05-25 | 佛山市成阳正大模具五金塑料有限公司 | 一种针对厚板用的高精度翻边模具及翻边工艺 |
JP6552468B2 (ja) * | 2016-10-13 | 2019-07-31 | 株式会社アーク | バーリング工具及びバーリング加工装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE435527B (sv) * | 1973-11-06 | 1984-10-01 | Plannja Ab | Forfarande for framstellning av en detalj av herdat stal |
SE510056C2 (sv) * | 1997-08-07 | 1999-04-12 | Ssab Hardtech Ab | Sätt att tillverka en härdad ståldetalj |
-
2001
- 2001-10-05 DE DE10149220A patent/DE10149220C1/de not_active Expired - Fee Related
-
2002
- 2002-08-31 EP EP02019505A patent/EP1300476B1/de not_active Expired - Fee Related
- 2002-09-30 US US10/262,586 patent/US20030066581A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1300476A3 (de) | 2004-09-08 |
EP1300476A2 (de) | 2003-04-09 |
DE10149220C1 (de) | 2002-08-08 |
US20030066581A1 (en) | 2003-04-10 |
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