EP1300476A2 - Verfahren zur Herstellung eines gehärteten Blechprofils - Google Patents
Verfahren zur Herstellung eines gehärteten Blechprofils Download PDFInfo
- Publication number
- EP1300476A2 EP1300476A2 EP02019505A EP02019505A EP1300476A2 EP 1300476 A2 EP1300476 A2 EP 1300476A2 EP 02019505 A EP02019505 A EP 02019505A EP 02019505 A EP02019505 A EP 02019505A EP 1300476 A2 EP1300476 A2 EP 1300476A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet metal
- passage
- metal profile
- board
- press 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.)
- Granted
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 a possibly preformed board.
- the term circuit board is subsequently uniform for both a flat steel plate and also used for a preformed semi-finished product.
- DE 24 52 486 A1 counts a method for producing a hardened one Sheet metal profile from a board in a press hardening process for State of the art.
- a hardenable steel Board heated to hardening temperature, then warm in a press tool formed and then hardened while the sheet profile in Press tool remains. Because the sheet profile during the course of the hardening process cooling is clamped in the press tool you get a product with good dimensional accuracy.
- the hot forming and hardening in the press tool is due to the combination of forming and tempering processes in one tool rational way of working.
- WO 99/07492 provides for the above-described press hardening process to modify and the edge areas in the press tool bend from prefabricated holes so that collars are formed.
- the holes are bent in the press tool before hardening.
- the openings in the sheet metal profile are intended as through holes for fastening screws serve. It is also common in the prior art to use such Openings referred to in technical terms as passages as reference holes or recordings for the precise alignment of the sheet profile to be used in subsequent processes. They also serve as assembly clearances or as a stiffening measure.
- the object of the invention is based on the prior art based on a process for the production of hardened sheet metal profiles more economically and make it more rational.
- this object is achieved by a method according to the patent claim 1 solved.
- a swipe is shaped on the board outside of the tempering process.
- the board can also be act as a preform or semi-finished product. After the draft is created with its protruding collar, the board is heated and in a press tool to form a sheet metal profile. This is done a final shaping calibration of the draft. Then that will Sheet profile hardened in the press tool.
- the board is provided with one or more passages. These can be of various types, for example round or oval.
- the key point is the measure, only a part of the remuneration process Calibrate the draft to the final dimension. This measure ensures that the swipe with the required accuracy as a reference point act on downstream sheet metal profile manufacturing operations can. This can also reduce tool wear and the Manufacturing costs can be reduced.
- the procedure is procedural simple, inexpensive and efficient.
- the passages can be used as reference points for the orientation of the sheet metal profile in subsequent manufacturing operations or to stiffen the Serve sheet metal profile or as mounting holes.
- a blank or semi-finished product made of steel is preferably used, which is expressed in percent by weight of carbon (C) 0.19 up 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 as well 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 rest iron (Fe) is inclusive of melting-related impurities.
- the board provided with passages is heated in the heat treatment system to the hardening temperature, that is, to a temperature above Ac 3 , where the steel is in the austenitic state. As a rule, this temperature is between 775 ° C and 1000 ° C. Then the forming process takes place in the press tool, whereupon the hardening begins by cooling. This creates a fine-grained martensitic or bainitic material structure.
- the sheet profile is clamped in the press tool during the hardening process.
- the cooling performed here can be carried out directly or indirectly. With direct cooling, the sheet profile is brought into direct contact with a coolant. With indirect cooling, the press tool or parts thereof are cooled.
- the passages can with a circumferential collar (claim 2) or an interrupted collar (claim 3).
- Figure 1 shows a circuit board 1 made of sheet steel, pre-punched and with a recess 2 is provided.
- the edges 3 of the recess 2 are in one next forming process to form collar 4, so that on the circuit board 1 a passage 5 is formed, as shown in FIG. 2.
- the one shown here Passage 5 has a circumferential collar 4.
- a broken collar can also be made to meet requirements.
- the board 1 provided with the passage 5 is then heated to the curing temperature, that is to say 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 circuit board 1 is then placed in a press tool 6 (FIG. 3) and formed into a sheet metal profile 7.
- the sheet metal profile 7 is still clamped in the press tool 6.
- FIG. 3 shows a schematic section a press tool 6.
- the sheet 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, which the Thread 5 positioned.
- the upper tool 8 has a configuration the lower tool 9 or the receptacle 10 matched stamp 11.
- the board 1 is formed into the sheet profile 7 and at the same time the passage 5 calibrated to its exact gauge. Still in the press tool 6 the sheet profile 7 is then clamped by rapid cooling hardened.
- FIG. 4 shows the sheet metal profile 7 after the passage 5 has been calibrated
- the diameter d of the passage is 5 ⁇ m 3 mm
- the inner radius r on the collar 4 is reduced by 2 mm.
- the passage 5 thus generated can be used as a reference point for orientation the sheet profile 7 serve in downstream manufacturing operation. Also for Stiffening of a sheet metal profile 7 can passages 5 at suitable points be provided. Furthermore, the passages 5 can also be used as mounting holes act.
Abstract
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 |
---|---|---|---|
DE10149220A DE10149220C1 (de) | 2001-10-05 | 2001-10-05 | Verfahren zur Herstellung eines gehärteten Blechprofils |
DE10149220 | 2001-10-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1300476A2 true EP1300476A2 (de) | 2003-04-09 |
EP1300476A3 EP1300476A3 (de) | 2004-09-08 |
EP1300476B1 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) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10322928B3 (de) * | 2003-05-21 | 2004-10-21 | Thyssenkrupp Automotive Ag | Verfahren zum Herstellen von Formbauteilen |
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 |
Families Citing this family (15)
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 |
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 |
SE0401473L (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 |
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 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2452486A1 (de) * | 1973-11-06 | 1975-05-07 | Norrbottens Jaernverk Ab | Verfahren zur herstellung eines werkstueckes aus gehaertetem stahl |
WO1999007492A1 (en) * | 1997-08-07 | 1999-02-18 | Ssab Hardtech Ab | A method of producing a hardened sheet steel product |
-
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
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2452486A1 (de) * | 1973-11-06 | 1975-05-07 | Norrbottens Jaernverk Ab | Verfahren zur herstellung eines werkstueckes aus gehaertetem stahl |
GB1490535A (en) * | 1973-11-06 | 1977-11-02 | Norrbottens Jaernverk Ab | Manufacturing a hardened steel article |
WO1999007492A1 (en) * | 1997-08-07 | 1999-02-18 | Ssab Hardtech Ab | A method of producing a hardened sheet steel product |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10322928B3 (de) * | 2003-05-21 | 2004-10-21 | Thyssenkrupp Automotive Ag | Verfahren zum Herstellen von Formbauteilen |
US7544258B2 (en) | 2003-05-21 | 2009-06-09 | Thyssenkrupp Automotive Ag | Method of fabricating pressed components |
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 |
Also Published As
Publication number | Publication date |
---|---|
US20030066581A1 (en) | 2003-04-10 |
EP1300476B1 (de) | 2005-11-02 |
DE10149220C1 (de) | 2002-08-08 |
EP1300476A3 (de) | 2004-09-08 |
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