DE10312028A1 - Component production method for producing metallic shaped structural member, involves performing heat treatment process to curve areas of pipe, before pipe undergoes interior high pressure forming process - Google Patents
Component production method for producing metallic shaped structural member, involves performing heat treatment process to curve areas of pipe, before pipe undergoes interior high pressure forming process Download PDFInfo
- Publication number
- DE10312028A1 DE10312028A1 DE10312028A DE10312028A DE10312028A1 DE 10312028 A1 DE10312028 A1 DE 10312028A1 DE 10312028 A DE10312028 A DE 10312028A DE 10312028 A DE10312028 A DE 10312028A DE 10312028 A1 DE10312028 A1 DE 10312028A1
- Authority
- DE
- Germany
- Prior art keywords
- heat treatment
- component
- areas
- pipe
- hydroforming
- 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
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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- 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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- 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
- C21D2221/00—Treating localised areas of an article
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zu Herstellung von Bauteilen nach dem Oberbegriff des ersten Patentanspruchs, wobei ein Profilbauteil in mehreren Umformstufen hergestellt wird und die abschließende Umformstufe ein Innenhochdruckumformen ist.The invention relates to a method for the production of components according to the preamble of the first claim, whereby a profile component is manufactured in several forming stages and the final one Forming stage is hydroforming.
Bekannt ist nach
Bekannt ist auch das Innenhochdruckumformverfahren
zur Herstellung von Profilbauteilen, wobei ein Ausgangswerkstück in Form
eines Hohlprofils in ein Umformwerkzeug eingelegt und in diesem
durch die Zuführung
eines Druckmittels umgeformt wird. In
Es bestand daher die Aufgabe, ein effektives kostengünstiges Verfahren zur Herstellung von Bauteilen mit abschließendem Innenhochdruckumformen unter Einbeziehen einer Wärmebehandlung zu entwickeln, welches den Verzug der Bauteile reduziert, wobei definierte Bereiche des Bauteiles, die beim Vorformen eine Verfestigung erfahren haben, diese Verfestigung auch nach der Wärmebehandlung aufweisen.It was therefore the task of a effective inexpensive Process for the production of components with final hydroforming involving a heat treatment to develop, which reduces the distortion of the components, whereby Defined areas of the component that harden during preforming have experienced this solidification even after the heat treatment.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des ersten Patentanspruchs gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.This object is achieved with the Features of the first claim solved. Advantageous configurations result from the subclaims.
Bei dem Verfahren wird bekannterweise ein Bauteil unter Verwendung eines Formgebungswerkzeuges mittels Innenhochdruck in die durch das Formgebungswerkzeug bestimmte Form umgeformt, wobei das Bauteil in ein oder mehreren Umformstufen (U1...Un) vorgeformt wird und die letzte Umformstufe das Innenhochdruckumformen (IHU) ist. Erfindungsgemäß wird vor dem Innenhochdruckumformen das Bauteil in den Bereichen, in welchen durch die vorangegangenen Umformstufen eine starke, den Werkstofffluss beim Innenhochdruckumformen beeinträchtigende, Verfestigung zu verzeichnen ist, partiell einer, die Verfestigung des Werkstoffs des Bauteiles in diesen Bereichen abbauenden, Wärmebehandlung unterzogen. Vorrangig sind dies gebogene Bereiche, in welchen sich der Werkstoff des Bauteiles so stark verfestigt hat, dass es beim abschließenden Innenhochdruckumformen zu Rissbildung kommen kann bzw. der geforderte Werkstofffluss beeinträchtigt ist. Die partielle Wärmebehandlung erfolgt dabei mittels Konvektion, Wärmestrahlung oder anderem Wärmeeintrag. Bevorzugt wird die Wärmebehandlung induktiv und unter Schutzgas bei einem Druck gleich größer 1 bar durchgeführt.In the method, it is known that a component is shaped using a high-pressure die using a shaping tool into the shape determined by the shaping tool, the component being preformed in one or more shaping steps (U 1 ... U n ) and the last shaping step being the high-pressure shaping step (IHU). is. According to the invention, before the internal high-pressure forming, the component is partially subjected to a heat treatment that degrades the solidification of the material of the component in these areas, in the areas in which the previous forming steps result in a strong consolidation that impairs the material flow during internal high-pressure forming. These are primarily curved areas in which the material of the component has solidified to such an extent that cracking can occur during the final hydroforming process or the required material flow is impaired. The partial heat treatment takes place by means of convection, heat radiation or other heat input. The heat treatment is preferably carried out inductively and under protective gas at a pressure equal to or greater than 1 bar.
Dabei können die entsprechenden Bereiche eines Bauteiles nacheinander oder gleichzeitig einer partiellen Wärmebehandlung unterzogen werden. Weiterhin ist es möglich, die verfestigten Bereichen mehrerer Bauteile gleichzeitig einer partielle Wärmebehandlung zu unterziehen.The corresponding areas of a Component one after the other or at the same time a partial heat treatment be subjected. It is also possible to consolidate several areas To subject components to partial heat treatment at the same time.
Dabei sind bevorzugt
- – die
Umformstufen (U1...Un)
zum Vorformen des Bauteils
1 , - – die partielle Wärmebehandlung (W) und
- – das Innenhochdruckumformen (IHU)
- - The forming stages (U 1 ... U n ) for preforming the component
1 . - - the partial heat treatment (W) and
- - hydroforming (IHU)
Die Einrichtung zur partiellen induktiven Erwärmung kann somit relativ einfach am Standort des Umformprozesses vor dem Innenhochdruckumformen eingebunden werden. Größere Transportwege des Bauteiles vom Vorformen zur Wärmebehandlung und zum Innenhochdruckumformen werden dadurch vermieden.The device for partial inductive warming can be relatively easy at the location of the forming process before High pressure forming can be integrated. Larger transport routes of the component from preforming to heat treatment and for internal high pressure forming are avoided.
Von wesentlichem Vorteil ist dabei, dass nur die Bereiche einer Wärmebehandlung unterzogen werden, die durch die dem Innenhochdruckumformen vorangehenden Umformstufen so stark verfestigt sind, dass der Innenhochdruckumformvorgang beeinträchtigt würde. Alle anderen Bereiche des Bauteiles, die von der Wärmebehandlung nicht erfasst werden, behalten vorteilhafterweise ihre durch die Vorformung erlangte Verfestigung.The main advantage is that only the areas of heat treatment are subjected to those preceding the hydroforming Forming stages are so strongly consolidated that the hydroforming process would be impaired. All other areas of the component that are not covered by the heat treatment will advantageously retain their preforming Consolidation.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel und zugehörigen Zeichnungen näher erläutert.The invention will follow an embodiment and associated Drawings closer explained.
Es zeigen:Show it:
In
Abschließend erfolgt nun gem.
Durch die Verwendung eines induktiven Verfahrens für die partielle Wärmebehandlung ist es möglich, gezielt nur definierte Bereiche des Bauteiles dieser Wärmebehandlung zu unterziehen.By using an inductive Procedure for the partial heat treatment Is it possible, targeted only defined areas of the component of this heat treatment to undergo.
Bevorzugt wird die partielle Wärmebehandlung induktiv und unter Schutzgas bei einem Druck gleich größer 1 bar durchgeführt.Partial heat treatment is preferred inductive and under protective gas at a pressure equal to or greater than 1 bar carried out.
Die Einrichtung zur Wärmebehandlung
kann dabei direkt am Standort des Innenhochdruckumformwerkzeuges
bzw. zwischen den Umformstationen U2 und IHU positioniert werden.
Selbstverständlich
ist es auch möglich,
die partielle Wärmebehandlung
zwischen zwei vor dem IHU liegenden Umformstufen U1 bis Un durchzuführen. Weiterhin
ist es möglich,
mehrere der Verfahrensläufe
gem.
Für das erfindungsgemäße Verfahren mit partieller Erwärmung sind insbesondere metallische Werkstoffe wie Stahl, Aluminium, Magnesium, Kupfer und deren Legierungen geeignet, aus welchen größere, sich vorrangig längs erstreckende Bauteile in Form von Rahmenstrukturteilen hergestellt werden, wie beispielsweise Längsträger, Tischbeine, Motorträger, Karosserieteile von Kraftfahrzeugen usw.For the inventive method with partial warming are in particular metallic materials such as steel, aluminum, magnesium, Copper and their alloys are suitable, from which larger ones primarily lengthways extending components made in the form of frame structure parts such as side members, table legs, Motor carrier, Body parts of motor vehicles, etc.
Mit dem erfindungsgemäßen Verfahren wird eine elegante und kostengünstige Lösung für die Herstellung dieser Werkstücke zur Verfügung gestellt, die gleichzeitig die Bauteileigenschaften verbessert, durch
- – die Verringerung bzw. Vermeidung von Verzug,
- – spezifischem Abbau von Verfestigungen in definierten Bereichen, in welchen dies für das nachfolgende IHU erforderlich ist und
- – durch die Aufrechterhaltung von Verfestigungen in anderen Bereichen des Bauteiles.
- - the reduction or avoidance of delay,
- - specific breakdown of solidifications in defined areas in which this is necessary for the subsequent IHU and
- - by maintaining solidifications in other areas of the component.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10312028A DE10312028B4 (en) | 2003-03-18 | 2003-03-18 | Process for the production of components |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10312028A DE10312028B4 (en) | 2003-03-18 | 2003-03-18 | Process for the production of components |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10312028A1 true DE10312028A1 (en) | 2004-10-07 |
DE10312028B4 DE10312028B4 (en) | 2005-07-28 |
Family
ID=32945969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10312028A Withdrawn - After Issue DE10312028B4 (en) | 2003-03-18 | 2003-03-18 | Process for the production of components |
Country Status (1)
Country | Link |
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DE (1) | DE10312028B4 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006049869A1 (en) * | 2006-10-23 | 2008-04-24 | Bdw Technologies Gmbh & Co. Kg | Production of aluminum alloy die castings comprises heat treating them after maximum of fifteen minutes from demolding |
WO2008095705A1 (en) * | 2007-02-08 | 2008-08-14 | Daimler Ag | Method for producing a chassis part and/or body part |
DE102007018281A1 (en) | 2007-04-18 | 2008-10-23 | Volkswagen Ag | Tool for hydroforming, comprises tool base body with suitable deformation chamber for hydroforming, and heating unit is provided for heating of deformation chamber |
CN105033015A (en) * | 2014-04-30 | 2015-11-11 | 福特全球技术公司 | Induction annealing as a method for expanded hydroformed tube formability |
US9248490B2 (en) | 2011-07-20 | 2016-02-02 | Benteler Automobiltechnik Gmbh | Method of manufacturing a tubular structural part, and tubular structural part |
CN106794503A (en) * | 2014-04-30 | 2017-05-31 | 福特全球技术公司 | Monetary value flow process for forming vehicle rail by extrusion aluminum pipe |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007037835B3 (en) * | 2007-08-10 | 2009-02-12 | Deutsches Elektronen-Synchrotron Desy | Method and device for producing weld-free high-frequency resonators |
DE102016013989B4 (en) | 2016-11-23 | 2019-08-01 | Wvl-Werkzeug- Und Vorrichtungsbau Lichtenstein Gmbh | Method and tool for forming prefabricated pipe parts with expanded Maßvergrößerten pipe sections |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10042465A1 (en) * | 2000-08-29 | 2002-03-28 | Vaw Ver Aluminium Werke Ag | Process for deforming tubular hollow bodies made of metal |
DE19708905C2 (en) * | 1997-03-05 | 2002-06-27 | Daimler Chrysler Ag | Process for the production of body panels |
DE10120063A1 (en) * | 2001-04-24 | 2002-11-14 | Benteler Automobiltechnik Gmbh | Production of metallic profile components for motor vehicles comprises inductively heating partial regions of a cold-formed profile to a temperature required for hardening followed by quenching in a cooling unit before cutting |
-
2003
- 2003-03-18 DE DE10312028A patent/DE10312028B4/en not_active Withdrawn - After Issue
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19708905C2 (en) * | 1997-03-05 | 2002-06-27 | Daimler Chrysler Ag | Process for the production of body panels |
DE10042465A1 (en) * | 2000-08-29 | 2002-03-28 | Vaw Ver Aluminium Werke Ag | Process for deforming tubular hollow bodies made of metal |
DE10120063A1 (en) * | 2001-04-24 | 2002-11-14 | Benteler Automobiltechnik Gmbh | Production of metallic profile components for motor vehicles comprises inductively heating partial regions of a cold-formed profile to a temperature required for hardening followed by quenching in a cooling unit before cutting |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006049869A1 (en) * | 2006-10-23 | 2008-04-24 | Bdw Technologies Gmbh & Co. Kg | Production of aluminum alloy die castings comprises heat treating them after maximum of fifteen minutes from demolding |
WO2008095705A1 (en) * | 2007-02-08 | 2008-08-14 | Daimler Ag | Method for producing a chassis part and/or body part |
DE102007018281A1 (en) | 2007-04-18 | 2008-10-23 | Volkswagen Ag | Tool for hydroforming, comprises tool base body with suitable deformation chamber for hydroforming, and heating unit is provided for heating of deformation chamber |
US9248490B2 (en) | 2011-07-20 | 2016-02-02 | Benteler Automobiltechnik Gmbh | Method of manufacturing a tubular structural part, and tubular structural part |
CN105033015A (en) * | 2014-04-30 | 2015-11-11 | 福特全球技术公司 | Induction annealing as a method for expanded hydroformed tube formability |
CN106794503A (en) * | 2014-04-30 | 2017-05-31 | 福特全球技术公司 | Monetary value flow process for forming vehicle rail by extrusion aluminum pipe |
US10086422B2 (en) | 2014-04-30 | 2018-10-02 | Ford Global Technologies, Llc | Value stream process for forming vehicle rails from extruded aluminum tubes |
GB2540306B (en) * | 2014-04-30 | 2020-07-15 | Ford Global Tech Llc | Value stream process for forming vehicle rails from extruded aluminum tubes |
DE112014006624B4 (en) | 2014-04-30 | 2022-02-10 | Ford Global Technologies, Llc | PROCESS FOR FORMING AN ALUMINUM VEHICLE SIDE MEMBER |
Also Published As
Publication number | Publication date |
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DE10312028B4 (en) | 2005-07-28 |
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