DE102008039264A1 - Method for tempering with intermediate cooling - Google Patents
Method for tempering with intermediate cooling Download PDFInfo
- Publication number
- DE102008039264A1 DE102008039264A1 DE200810039264 DE102008039264A DE102008039264A1 DE 102008039264 A1 DE102008039264 A1 DE 102008039264A1 DE 200810039264 DE200810039264 DE 200810039264 DE 102008039264 A DE102008039264 A DE 102008039264A DE 102008039264 A1 DE102008039264 A1 DE 102008039264A1
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- Germany
- Prior art keywords
- board
- cooling
- outlets
- intermediate cooling
- turbulent flow
- 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.)
- Ceased
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000005496 tempering Methods 0.000 title description 2
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 230000037303 wrinkles Effects 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000004941 influx Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- 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
-
- 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
- C21D1/667—Quenching devices for spray quenching
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Warmumformverfahren zum Formhärten von metallischen Werkstücken, bei dem dem eigentlichen Formhärtevorgang eine Zwischenkühlung vorgeschaltet wird.Hot forming process for the form hardening of metallic workpieces, in which the actual mold hardening process is preceded by an intermediate cooling.
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Warmumformung, bei dem ein härtbares Stahlblech nach einer austenitisierenden Erwärmung und vor einer Abkühlung in einem Werkzeug eine Zwischenkühlung erfährt.The The present invention relates to a method of hot forming, in which a hardenable steel sheet after austenitizing Heating and before cooling in a tool undergoes an intercooling.
Stand der TechnikState of the art
Bauteile aus hochfesten Blechen werden zunehmend im Automobilbau verwendet. Sie erhöhen die Festigkeit, verbessern das Crashverhalten und reduzieren das Fahrzeuggewicht deutlich. Das so genannte Formhärten oder auch Presshärten dieser hochfesten Blechwerkstoffe ermöglicht den Bau leichterer und dennoch extrem steifer Karosseriebauteile durch die Kombination von Wärmebehandlung und Formgebung mit gleichzeitiger kontrollierter Abkühlung. Bei dem Verfahren des Formhärtens wird nicht nur ein deutlicher Festigkeitszuwachs des Materials nutzbar, darüber hinaus ist auch die Verformbarkeit bei hoher Temperatur über des 20-fache höher als die Verformbarkeit von Stahlblechen mit vergleichbarer Endfestigkeit, die kalt verformt werden. Daher ist bei diesem Verfahren oftmals der Verformungsprozess in einem Schritt möglich, während bei kalter Verformung mehrere Pressenhübe erforderlich sind.components made of high-strength sheets are increasingly being used in the automotive industry. They increase the strength, improve the crash behavior and reduce the vehicle weight significantly. The so-called form hardening or press hardening of these high-strength sheet materials makes the construction lighter and yet extremely stiffer Bodywork components through the combination of heat treatment and Shaping with simultaneous controlled cooling. The method of form-hardening not only becomes clearer Strength increase of the material usable, beyond is also the deformability at high temperature above the 20 times higher than the ductility of steel sheets with comparable ultimate strength, which are cold worked. Therefore is in this process often the deformation process in one Step possible while with cold deformation several press strokes are required.
Beim Formhärten unterscheidet man prinzipiell zwei Verfahren, das direkte und das indirekte Verfahren. Beim direktem Formhärten wird ein in der Regel borlegierter Stahl bei ca. 900°C bis 950°C austenitisiert und direkt aus dem Ofen möglichst schnell in ein Umformwerkzeug eingebracht und mit hoher Arbeitsgeschwindigkeit umgeformt. Zum Umformen werden üblicherweise hydraulische Pressen und spezielle gekühlte Werkzeuge eingesetzt, mit denen eine für die Martensitbildung ausreichende Abkühlgeschwindigkeit realisiert werden kann. Das Abkühlen des Werkstückes bestimmt die endgültige Härte und Festigkeit. Das nach der Umformung und Kühlung harte Werkstück wird dann hart beschnitten und weiterbearbeitet.At the Form hardening is distinguished in principle from two methods, the direct and the indirect method. When direct molding is a boron-alloyed steel at about 900 ° C. Austenitized to 950 ° C and directly from the oven as possible quickly introduced into a forming tool and with high operating speed reshaped. For forming usually hydraulic Presses and special refrigerated tools used with those sufficient for martensite cooling rate can be realized. The cooling of the workpiece determines the final hardness and strength. The hard workpiece after forming and cooling is then cut hard and processed further.
Beim indirekten Formhärten werden die Bleche zunächst kalt vorgeformt, danach erwärmt und in einer gekühlten Form gehärtet. Damit lassen sich komplexere Umformungen realisieren als beim direkten Formhärten.At the Indirect tempering, the sheets are first cold pre-formed, then heated and cooled Form hardened. This allows more complex transformations realize as in direct form hardening.
In
der
Die
Aufgabe und Vorteile der ErfindungPurpose and advantages of the invention
Der Erfindung liegt die Aufgabe zugrunde, ausgehend vom Stand der Technik ein Formhärteverfahren zu entwickeln, welches eine deutliche Verkürzung der Verfahrenszykluszeit darstellt und welches als Endprodukt ein umgeformtes Blech mit definierten oder vorwählbaren Festigkeitswerten hat.Of the Invention is based on the object, starting from the prior art to develop a mold hardening process which produces a distinct Shortening of the process cycle time represents and which as End product a formed sheet metal with defined or preselectable Strength values has.
Eine weitere Aufgabe der Erfindung ist die gezielte Einflussnahme auf das Fließverhalten des Werkstoffes zur Verhinderung von Falten und Reissern im umgeformten Werkstück.A Another object of the invention is the targeted influence on the flow behavior of the material to prevent Wrinkles and tears in the formed workpiece.
Die Aufgabe wird ausgehend von einem Verfahren nach dem Oberbegriff des Anspruch 1 durch die kennzeichnenden Merkmale des Anspruch 1 gelöst. In den Unteransprüchen sind vorteilhafte und zweckmäßige Weiterbildungen des erfindungsgemäßen Verfahrens angegeben.The Task is based on a method according to the preamble of claim 1 by the characterizing features of claim 1 solved. In the subclaims are advantageous and expedient developments of the invention Specified method.
Der Erfindung liegt der Gedanke zugrunde, zwischen dem Erwärmen und dem damit verbundenen Austenitisieren der Platinen bzw. vorgeformten Werkstücke und dem Abkühlen im Umformwerkzeug einen weiteren Prozessschritt einzuführen, um die Zeit zur Werkstückkühlung im Umformwerkzeug gegenüber bekannten Verfahren deutlich zu verkürzen. Hierbei werden die Platinen bzw. vorgeformten Werkstücke nach der Erwärmung zwischengekühlt bevor die vollständige Abkühlung in einem Umformwerkzeug erfolgt. Kennzeichnend für das erfindungsgemäße Warmumformverfahren ist, dass sowohl die Zwischenkühlung, als auch die Kühlung des umgeformten Werkstückes im Umformwerkzeug zeitlich so gesteuert werden, dass als Endprodukt ein umgeformtes Blech mit einem definierten Mischgefüge oder einem rein martensitischem Gefüge entsteht. Beide Abkühlungen müssen zeitlich genau definiert erfolgen, damit die gewünschten Gefügeumwandlungen entstehen.The invention is based on the idea between the heating and the associated austenitizing of the blanks or preformed workpieces and the cooling in the forming tool to introduce a further process step to significantly shorten the time for workpiece cooling in the forming tool compared to known methods. Here, the boards or preformed workpieces are cooled after the heating before the complete cooling takes place in a forming tool. Characteristic of the hot forming process according to the invention is that both the intermediate cooling, as well as the cooling of the formed workpiece in the forming tool are controlled in time so that the end product is a formed sheet with a defined mixed structure or a purely martensitic structure. Both coolings have to be precisely defined in terms of time, so that the desired microstructural transformations arise.
Da sich das Fließverhalten von Blechwerkstoffen temperaturabhängig ändert, ist es möglich durch eine gezielte Vorkühlung der gesamten Platine oder definierter Bereiche das Fließverhalten so zu beeinflussen, dass der Materialfluß des Werkstücks während der Umformung für die Bauteilherstellbarkeit optimiert wird. So können Reisser, Falten oder auch andere Defekte vermieden werden.There the flow behavior of sheet materials changes depending on the temperature, It is possible through a targeted pre-cooling the entire board or defined areas the flow behavior to influence so that the material flow of the workpiece during the forming optimized for component manufacturability becomes. So can Reisser, wrinkles or other defects be avoided.
Prinzipiell sieht die Erfindung zwei Arten von Zwischenkühlungen vor, durch Kontakt und durch Konvektion. Bei der Zwischenkühlung durch Kontaktkühlung werden im Durchlauf die Platinen an Kühlelementen vorbeigeführt, die beispielsweise als Kühlrollen und/oder plattenförmig ausgeführt sein können. Die Form der Kühlelemente sowie die Andruckkräfte der Platinen an die Kühlelemente bestimmen die Intensität der Kühlung. Die Erfindung umfasst Verfahren und Anlagen mit denen die Platinen gleichmäßig gekühlt werden sowie solche, bei denen eine partiell unterschiedliche Kühlung erfolgt.in principle the invention provides two types of intermediate cooling, through contact and convection. In the intermediate cooling by contact cooling in the run the boards Passed cooling elements, for example designed as cooling rollers and / or plate-shaped could be. The shape of the cooling elements and the Pressure forces of the boards to the cooling elements determine the intensity of cooling. The invention includes procedures and equipment with which the boards evenly be cooled as well as those in which a partially different Cooling takes place.
Das erfindungsgemäße Verfahren beinhaltet darüber hinaus die Möglichkeit die Zwischenkühlung unter Schutzgasatmosphäre durchzuführen um eine Verzunderung zu verhindern.The inventive method includes about In addition, the possibility of intercooling below Protective gas atmosphere to perform a scaling to prevent.
Mögliche Bauformen dieser Anlagen können Ähnlichkeiten zu bekannten Richtmaschinen aufweisen, wobei bei der erfindungsgemäßen Zwischenkühlung im Gegensatz zum Richten nicht die plastische Verformung der Platinen das Ziel ist, sondern deren Kühlung.Possible Designs of these systems may have similarities have to known straightening machines, wherein in the inventive Intermediate cooling in contrast to judging not the plastic one Deformation of the boards is the goal, but their cooling.
Bei der Zwischenkühlung durch Konvektionskühlung werden die Werkstücke durch Anblasen mit Luft, speziellen Gasen, Sprühnebel oder Anstrahlen mit Flüssigkeiten gekühlt. Es sind Verfahren und Anlagen möglich, bei denen die Werkstücke im Durchlauf gekühlt werden und solche bei denen die Kühlung im Stillstand erfolgt. Wie bei der Kontaktkühlung ist es auch bei der Konvektionskühlung denkbar, dass die Werkstücke bzw. Platinen sowohl gleichmäßig als auch partiell unterschiedlich gekühlt werden.at the intermediate cooling by convection cooling the workpieces by blowing air, special gases, Spray or spray with liquids cooled. There are methods and systems possible, in which the workpieces be cooled in the run and those where the cooling takes place at a standstill. As with the contact cooling it is even with convection cooling conceivable that the workpieces or sinkers both uniformly and partially be cooled differently.
Das erfindungsgemäße Verfahren beinhaltet auch die Verwendung und Bearbeitung von gefügten Platinen oder von Platinen mit partiell unterschiedlichen Dicken.The inventive method also includes the Use and processing of joined boards or of Boards with partially different thicknesses.
Bei der Konvektionskühlung ist es vorteilhaft, wenn sich an der Oberfläche der angeströmten Platinen turbulente Strömungen bilden. Dadurch wird die Kühlwirkung verbessert.at The convection cooling, it is advantageous when at the surface of the flown boards turbulent Make currents. This will reduce the cooling effect improved.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den, anhand der Zeichnungen dargestellten Ausführungsbeispielen.Further Details and advantages of the invention will become apparent from, based the drawings illustrated embodiments.
Es zeigen:It demonstrate:
Beschreibung der AusführungsbeispieleDescription of the embodiments
Nachdem
die Platine
In
In
Die Erfindung ist nicht auf dargestellte oder beschriebene Ausführungsbeispiele beschränkt. Sie umfasst vielmehr auch Weiterbildungen der Erfindung im Rahmen der Schutzrechtsansprüche.The The invention is not limited to illustrated or described embodiments limited. Rather, it also includes further developments of Invention within the scope of the protective rights claims.
- 11
- Platinecircuit board
- 22
- Platinenstapelblank stack
- 33
- Ofenoven
- 44
- ZwischenkühlungsstationIntermediate cooling station
- 55
- Kühlstufencooling stages
- 66
- Umformpresseforming press
- 77
- Stößeltappet
- 88th
- Oberwerkzeugupper tool
- 99
- Tischtable
- 1010
- Unterwerkzeuglower tool
- 1111
- Kühlrollencooling rolls
- 1212
- Kühlrollencooling rolls
- 1313
- Kühlrollencooling rolls
- 1414
- Kühlrollencooling rolls
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 2452486 A1 [0005] - DE 2452486 A1 [0005]
- - DE 102005003551 A1 [0006] DE 102005003551 A1 [0006]
Claims (16)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810039264 DE102008039264A1 (en) | 2008-08-22 | 2008-08-22 | Method for tempering with intermediate cooling |
| PCT/DE2009/001108 WO2010020212A1 (en) | 2008-08-22 | 2009-08-07 | Method for mould annealing with intermediate cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810039264 DE102008039264A1 (en) | 2008-08-22 | 2008-08-22 | Method for tempering with intermediate cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008039264A1 true DE102008039264A1 (en) | 2010-03-04 |
Family
ID=41467121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200810039264 Ceased DE102008039264A1 (en) | 2008-08-22 | 2008-08-22 | Method for tempering with intermediate cooling |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102008039264A1 (en) |
| WO (1) | WO2010020212A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2665837A1 (en) | 2011-01-17 | 2013-11-27 | Tata Steel IJmuiden BV | Method to produce a hot formed part, and part thus formed |
| DE102013100682B3 (en) * | 2013-01-23 | 2014-06-05 | Voestalpine Metal Forming Gmbh | A method of producing cured components and a structural component made by the method |
| DE102014114740B3 (en) * | 2014-10-10 | 2015-07-23 | Schuler Pressen Gmbh | Process for producing hardened steel components |
| DE102014204639A1 (en) * | 2014-03-13 | 2015-09-17 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing at least one dimensionally hardened workpiece and manufacturing device for producing at least one dimensionally hardened workpiece |
| EP3067128A1 (en) * | 2015-03-09 | 2016-09-14 | Autotech Engineering, A.I.E. | Press system for die quenching and method |
| DE102017107549A1 (en) * | 2017-04-07 | 2018-10-11 | Schwartz Gmbh | Temperature control station for the partial heat treatment of a metallic component |
| DE102017213000A1 (en) * | 2017-07-27 | 2019-01-31 | Bayerische Motoren Werke Aktiengesellschaft | Forming process for a sheet metal component |
| US10618094B2 (en) | 2015-03-09 | 2020-04-14 | Autotech Engineering S.L. | Press systems and methods |
| DE102020116126A1 (en) | 2020-06-18 | 2021-12-23 | Bilstein Gmbh & Co. Kg | Process for press hardening of hot-formable blanks |
| DE102021122383A1 (en) | 2021-08-30 | 2023-03-02 | Audi Aktiengesellschaft | Process for the production of a hot-formed and press-hardened sheet steel component |
| EP3262202B1 (en) * | 2015-02-26 | 2024-05-01 | Bayerische Motoren Werke Aktiengesellschaft | System for the series production of press-hardened and anti-corrosion sheet metal moulded parts, comprising a cooling device for intermediate cooling of the sheet metal blanks |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE1000236A1 (en) * | 2010-03-16 | 2011-02-22 | Gestamp Hardtech Ab | Pressure curing plant and means of pressure curing |
| DE102011114764B4 (en) | 2011-10-01 | 2016-04-21 | Volkswagen Aktiengesellschaft | Process for the production of form-hardened components and continuous furnace for heating a board provided for molding |
| DE102014101159B4 (en) | 2014-01-30 | 2016-12-01 | Thyssenkrupp Steel Europe Ag | Process for the surface treatment of workpieces |
| CN107321832A (en) * | 2017-07-10 | 2017-11-07 | 山东钢铁集团日照有限公司 | A kind of process of steady decrease thermoforming temperatures |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2452486A1 (en) | 1973-11-06 | 1975-05-07 | Norrbottens Jaernverk Ab | PROCESS FOR MANUFACTURING A WORKPIECE FROM HARDENED STEEL |
| DE102005003551A1 (en) | 2005-01-26 | 2006-07-27 | Volkswagen Ag | Steel sheet forming and hardening, comprises austenitic heating above the Ac3 point, followed by forming and cooling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10208216C1 (en) * | 2002-02-26 | 2003-03-27 | Benteler Automobiltechnik Gmbh | Production of a hardened metallic component used as vehicle component comprises heating a plate or a pre-molded component to an austenitizing temperature, and feeding via a transport path while quenching parts of plate or component |
| DE102007009937A1 (en) * | 2007-03-01 | 2008-09-04 | Schuler Smg Gmbh & Co. Kg | Metal plate shaping heats the plate to a given temperature, which is then clamped between two cooling elements before pressing |
-
2008
- 2008-08-22 DE DE200810039264 patent/DE102008039264A1/en not_active Ceased
-
2009
- 2009-08-07 WO PCT/DE2009/001108 patent/WO2010020212A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2452486A1 (en) | 1973-11-06 | 1975-05-07 | Norrbottens Jaernverk Ab | PROCESS FOR MANUFACTURING A WORKPIECE FROM HARDENED STEEL |
| DE102005003551A1 (en) | 2005-01-26 | 2006-07-27 | Volkswagen Ag | Steel sheet forming and hardening, comprises austenitic heating above the Ac3 point, followed by forming and cooling |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2665837A1 (en) | 2011-01-17 | 2013-11-27 | Tata Steel IJmuiden BV | Method to produce a hot formed part, and part thus formed |
| DE102013100682B3 (en) * | 2013-01-23 | 2014-06-05 | Voestalpine Metal Forming Gmbh | A method of producing cured components and a structural component made by the method |
| DE102014204639A1 (en) * | 2014-03-13 | 2015-09-17 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing at least one dimensionally hardened workpiece and manufacturing device for producing at least one dimensionally hardened workpiece |
| DE102014114740B3 (en) * | 2014-10-10 | 2015-07-23 | Schuler Pressen Gmbh | Process for producing hardened steel components |
| EP3262202B1 (en) * | 2015-02-26 | 2024-05-01 | Bayerische Motoren Werke Aktiengesellschaft | System for the series production of press-hardened and anti-corrosion sheet metal moulded parts, comprising a cooling device for intermediate cooling of the sheet metal blanks |
| US10618094B2 (en) | 2015-03-09 | 2020-04-14 | Autotech Engineering S.L. | Press systems and methods |
| EP3067128B1 (en) | 2015-03-09 | 2017-09-13 | Autotech Engineering, A.I.E. | Press system for die quenching and method |
| EP3266531A1 (en) * | 2015-03-09 | 2018-01-10 | Autotech Engineering, A.I.E. | Press systems and methods |
| EP3266531B1 (en) | 2015-03-09 | 2019-02-27 | Autotech Engineering, A.I.E. | Press systems and methods |
| EP3505265A1 (en) * | 2015-03-09 | 2019-07-03 | Autotech Engineering S.L. | Press systems and methods |
| US9492859B2 (en) | 2015-03-09 | 2016-11-15 | Autotech Engineering A.I.E. | Press systems and methods |
| EP3067128A1 (en) * | 2015-03-09 | 2016-09-14 | Autotech Engineering, A.I.E. | Press system for die quenching and method |
| DE102017107549A1 (en) * | 2017-04-07 | 2018-10-11 | Schwartz Gmbh | Temperature control station for the partial heat treatment of a metallic component |
| US11313003B2 (en) | 2017-04-07 | 2022-04-26 | Schwartz Gmbh | Temperature control station for partially thermally treating a metal component |
| DE102017213000A1 (en) * | 2017-07-27 | 2019-01-31 | Bayerische Motoren Werke Aktiengesellschaft | Forming process for a sheet metal component |
| DE102020116126A1 (en) | 2020-06-18 | 2021-12-23 | Bilstein Gmbh & Co. Kg | Process for press hardening of hot-formable blanks |
| DE102021122383A1 (en) | 2021-08-30 | 2023-03-02 | Audi Aktiengesellschaft | Process for the production of a hot-formed and press-hardened sheet steel component |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010020212A1 (en) | 2010-02-25 |
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