EP1646459A1 - Composant trempe sous pression et procede de production d'un composant trempe sous pression - Google Patents

Composant trempe sous pression et procede de production d'un composant trempe sous pression

Info

Publication number
EP1646459A1
EP1646459A1 EP04741163A EP04741163A EP1646459A1 EP 1646459 A1 EP1646459 A1 EP 1646459A1 EP 04741163 A EP04741163 A EP 04741163A EP 04741163 A EP04741163 A EP 04741163A EP 1646459 A1 EP1646459 A1 EP 1646459A1
Authority
EP
European Patent Office
Prior art keywords
component
press
hardened
blank
layer
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
Application number
EP04741163A
Other languages
German (de)
English (en)
Other versions
EP1646459B2 (fr
EP1646459B1 (fr
Inventor
Michael Bayer
Martin Brodt
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.)
THERMISSION AG
Original Assignee
DaimlerChrysler AG
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
Family has litigation
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Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1646459A1 publication Critical patent/EP1646459A1/fr
Application granted granted Critical
Publication of EP1646459B1 publication Critical patent/EP1646459B1/fr
Publication of EP1646459B2 publication Critical patent/EP1646459B2/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/60—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49616—Structural member making
    • Y10T29/49622—Vehicular structural member making
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49885—Assembling or joining with coating before or during assembling
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49888—Subsequently coating
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/8305—Miscellaneous [e.g., treated surfaces, etc.]

Definitions

  • the invention relates to a press-hardened component and a method for producing a press-hardened component according to the preambles of the independent claims.
  • a solution to meet the contradicting requirements is provided by high-strength and ultra-high-strength steel materials, which enable the production of components with very high strengths and a low material thickness.
  • the strength and toughness values of a component can be set in a targeted manner by means of a suitable choice of process parameters during hot forming, which is customary for these materials.
  • Such a material is, for example, the pre-coated boron steel sold by Usinor under the trade name Usibor 1500.
  • the steel is provided with an AlSi coating, which, among other things, shows advantageous corrosion-inhibiting properties during subsequent heat treatment.
  • a blank is first cut out of a coil, which is then heated above the structural transformation temperature of the steel material, above which the material structure is in the austenitic state, inserted in a heated tool in the heated state and in the desired component shape is formed and cooled with mechanical fixation of the desired forming state, the component being tempered or hardened.
  • the component is often subjected to a preforming step or a trimming step before the actual hot forming. This is described, for example, in DE 101 49 221 Cl.
  • a preforming step or a trimming step before the actual hot forming.
  • This is described, for example, in DE 101 49 221 Cl.
  • Such a process can result in corrosion problems because a commonly applied strip coating is damaged during preforming.
  • the usual preforming and trimming of the components, especially with pre-coated high-strength steels such as Usibor 1500 PC, which has an AlSi coating, is therefore not carried out.
  • the object of the invention is to provide a press-hardened component and a manufacturing method for press-hardened components, which enables reliable corrosion protection for pre-coated, hot-formable steels.
  • a first embodiment of the method according to the invention for producing press-hardened components comprises the following method steps: a blank is formed from the pre-coated semi-finished product using a cold forming method, in particular a drawing method; the component Blank is trimmed on the edge to an edge contour approximately corresponding to the component to be produced; the trimmed component blank is heated and press-hardened in a hot-forming tool; the press-hardened component blank is coated with a layer that protects against corrosion in a coating step.
  • This embodiment of the invention makes it possible, on the one hand, to design the component manufacturing process in such a way that the technically complex and costly final trimming of the hardened component can be dispensed with.
  • the edge areas are therefore cut off in the uncured state of the component and not after the heating and hardening process - as is customarily the case with hot forming.
  • By trimming the workpiece while it is still soft significantly lower cutting forces are required than for cold cutting of hardened materials, which leads to reduced tool wear and a reduction in the maintenance costs of the cutting tools.
  • the high-strength material is trimmed in the uncured state, the risk of rapid crack formation is considerably reduced due to the high sensitivity to notching of these materials.
  • the pre-coating provided on the semi-finished product avoids scaling of the trimmed component blank during the hardening process, and the requirements for an inert atmosphere during hardening can be reduced.
  • the pre-coating also prevents decarburization of the material during hardening.
  • a further layer protecting against corrosion is applied according to the invention, so that the component is completely coated, that is to say also on the edges.
  • the following method steps are carried out: the semi-finished product precoated with a first layer is heated and press-hardened in a hot-forming tool; the component blank produced in this way is trimmed on the edge to a boundary contour corresponding to the component to be produced; the press-hardened, trimmed component blank is coated in a coating step with a second layer that protects against corrosion.
  • the hardened component is preferably trimmed with the aid of a laser or water jet cutting method, by means of which high-quality trimming of the component edges can be achieved.
  • the subsequent application of the second corrosion protection layer ensures that the component is also protected against corrosion in the area of the trimmed edges.
  • a layer of zinc that protects against corrosion can be applied in a coating process that can be suitably integrated into a manufacturing process.
  • the layer is applied to the press-hardened component blank using a thermal diffusion process, an easily controllable process can be used, with which preferably a layer of zinc or a zinc alloy can be applied, which is also suitable for complex component geometries and for edge layering is.
  • the layer thickness can be set between a few ⁇ m and over 100 ⁇ m.
  • a thermal load on the component is low.
  • Components, regardless of their size, dimensions, Configuration, complexity and weight are coated.
  • Cleaning before the coating step with dry cleaning, in particular blasting the press-hardened component blank with glass particles or zinc particles can be dispensed with, since the pre-coating essentially prevents scaling of the component blank during hot forming. This saves one process step; In addition, it is avoided that a slight but potentially disturbing component distortion is caused by blasting the components with particles.
  • a pre-coating with an aluminum-containing layer, preferably made of AlSi, and a zinc-containing coating results in good adhesion between the two coatings.
  • the second layer which is applied to the first layer of the precoating, provides an edge coating and a coating of those areas in which the first layer of the precoating e.g. chipped off during pre-forming or cracked due to excessive friction.
  • the component blank is cleaned of residues after the coating step, for example with ultrasound, and passivated, a surface is formed which gives a good primer for coatings, in particular primers of lacquers or lacquers themselves.
  • the component blank is advantageously tempered after the coating step. It is particularly advantageous if the component blank is coated with a zinc-containing layer, since an oxide is formed on the surface which is suitable as a primer.
  • a press-hardened component according to the invention in particular a body component, from a semi-finished product made of unhardened, hot-formable steel sheet is produced according to at least one development of the method according to the invention. Such a component is particularly suitable for mass production in a corresponding series production and combines an advantageous weight reduction of the component with excellent corrosion protection.
  • step I shows a process diagram of the process according to the invention of a press-hardened component with la: cutting the board (step I); Ib: Cold Forming (Step II); 1c: trimming the edges (step III); Id: hot working (step IV); le: coating (step V); lf: alternative method for coating (step V);
  • FIG. 1 perspective views of selected intermediate stages in the production of a component with 2a: a precoated semifinished product; 2b: a component blank formed therefrom; 2c: a trimmed component blank; 2d: a coated component blank;
  • FIG. 3 shows an alternative process sequence for producing a press-hardened component with la: cutting the board (step I); Ib: hot forming (step II '); lc: trimming the edges (step III '); Id: coating (step IV).
  • Figures la to le schematically show a method according to the invention for producing a spatially shaped, press-hardened component 1 from a semifinished product 2.
  • a blank 3 is used as the semifinished product 2, which is cut out of a unwound coil 5.
  • a composite sheet can also be used as the semi-finished product 2, as is described, for example, in DE 100 49 660 AI and which consists of a base sheet and at least one reinforcing sheet.
  • a Taylored Blank can also be used as the semi-finished product 2, which consists of a plurality of sheets of different material thickness and / or different material properties welded together.
  • the semifinished product 2 can be a three-dimensionally shaped sheet metal part produced by any shaping method, which is to undergo further shaping and an increase in strength and / or rigidity with the aid of the method according to the invention.
  • the semi-finished product 2 consists of an uncured, hot-formable steel sheet.
  • a particularly preferred material is a tempered steel containing boron, e.g. Usibor 1500, Usibor 1500 P or Usibor 1500 PC, which are sold by Usinor under these trade names.
  • the blank 3 (FIG. 1 a) is cut out of a unwound and straightened section of a coil 5 from a pre-coated, hot-formable sheet.
  • the coating is preferably a coating made of aluminum or an aluminum alloy, in particular a silicon-containing aluminum alloy AlSi.
  • the hot-formable material is in an unhardened state, so that board 3 can be easily cut using conventional mechanical cutting means 4, for example a pair of lifting scissors, can be cut out.
  • the blank 3 is advantageously cut using a blank press 6, which ensures automated feeding of the coil 5 and automatic punching out and removal of the blank 3.
  • the circuit board 3 cut out in this way is shown in FIG. 2a in a schematic perspective view.
  • a component blank 10 is formed from the blank 3 with the aid of the cold forming tool 8, for example a two-stage deep-drawing tool 9.
  • the blank 3 has edge regions 11 which protrude beyond an outer contour 12 of the component 1 to be molded.
  • the component blank 10 is shaped close to the final contour.
  • Near-net shape is to be understood to mean that those parts of the geometry of the finished component 1 which are associated with a macroscopic material flow are completely molded into the component blank 10 after the cold forming process has been completed. After the cold forming process has been completed, the three-dimensional parts are thus produced
  • the shape of the component 1 requires only slight shape adjustments, which require a minimal (local) material flow; the component blank 10 is shown in FIG. 2b.
  • the near-net-shape shaping can take place in a single deep-drawing step, or it can take place in several stages (FIG. 1b).
  • the component blank 10 is turned into a Cutting device 15 inserted and trimmed there (process step III, Fig. 1c).
  • the material is still in the uncured state at this point in time, so trimming can be carried out using conventional mechanical cutting means 14, such as cutting knives, folding and / or punching tools.
  • a separate cutting device 15 can be provided for the trimming.
  • the cutting means 14 can be integrated in the last stage 9 'of the deep-drawing tool 9, so that in the last deep-drawing stage 9', in addition to the final shaping of the sheet metal part blank 10, the edge-side trimming also takes place.
  • a blank 3 17 is cut from the blank 3, which is trimmed close to the final contour and has only a little of the desired shape of the component, both in terms of its three-dimensional shape and in terms of its edge contour 12 ' 1 deviates.
  • the cut off edge regions 11 are removed in the cutting device 15; the component blank 17 (FIG. 2c) is removed from the cutting device 15 with the aid of a manipulator 19 and fed to the next process step IV.
  • process steps II and III are integrated in a single processing station, in which the forming and cutting is carried out fully automatically.
  • the component blank 17 can be removed from the processing station in an automated manner or the component blanks 17 can be removed and stacked manually.
  • the trimmed component blank 17 is subjected to hot-working in a hot-forming area 26, in the course of which it is shaped and hardened to a final shape of the component 1.
  • the trimmed component blank 17 is inserted by a manipulator 20 into a continuous furnace 21, where it is heated to a temperature which is above the structural transformation temperature in the austenitic state; Depending on the type of steel, this corresponds to heating to a temperature between 700 ° C and 1100 ° C.
  • a favorable range is between 900 ° C and 1000 ° C.
  • the atmosphere of the continuous furnace can be rendered inert by adding a protective gas, but the pre-coating of the blanks 3 already prevents at least a full scale scaling of the blank surface.
  • the uncoated interfaces of the edge contour 12 'of the trimmed component blanks 17 represent only a very small proportion of the area of the component blank 17, so that the adhesion of a later applied layer is practically unaffected.
  • a suitable protective gas for inerting is e.g. Carbon dioxide or nitrogen.
  • the heated trimmed component blank 17 is then inserted with the aid of a manipulator 22 into a hot-forming tool 23 in which the three-dimensional shape and the edge contour 12 'of the trimmed component blank 17 are brought to their desired dimensions. Since the trimmed component blank 17 already has dimensions close to the final contour, only a slight shape adjustment is necessary during hot forming.
  • the hot-forming tool 23 the trimmed component blank 17 is finished and quickly cooled, which results in a fine-grained martensitic or bainitic material structure. is set. This step corresponds to a hardening of the component blank 18 and enables a targeted adjustment of the material strength. Details of such a hardening process are described, for example, in DE 100 49 660 AI.
  • Both the entire component blank 17 can be hardened and hardening can only be carried out locally at selected points on the component blank 17.
  • the hardened component blank 18 is removed from the hot-forming tool 23 with a manipulator and, if necessary, stacked until further processing. Because of the near-net-shape trimming of the component blank 10 prior to the hot-forming process and the shape adaptation of the edge contour 12 'in the hot-forming tool 23, the component 18 already has the desired outer contour 24 of the finished component 1 after the hot-forming process has been completed, so that after hot forming no time-consuming trimming of the component edge is necessary.
  • the component blank 18 can be quenched in a cooled hot-forming tool 23. Since the surface is not scaled by the layer 33 of the precoating, subsequent cleaning can be omitted.
  • the cycle times in the production process are advantageously short.
  • the cooling of the component blank 18 is now a possible bottleneck.
  • air-hardening or water-hardening materials can be used for the components 1.
  • the component blank 18 then only needs to be cooled down until it has sufficient heat resistance, rigidity and associated therewith Dimensional accuracy of the component blank 18 is reached.
  • the component blank 18 can then be removed from the tool 23, so that the further heat treatment process takes place in air or in water outside the tool 23, which is then very quickly available for receiving further component blanks 17 after a few seconds.
  • the press-hardened component blank 18 is coated in a coating process with a layer 34 that prevents corrosion of the component 1.
  • drums 31 are charged with the press-hardened component blanks 18 and with a zinc-containing powder, preferably a zinc alloy or a zinc-containing mixture, closed and introduced into a coating system 30.
  • the component blanks 18 are slowly heated to about 300 ° C. at about 5-10 K / min with slow rotation of the drums 31.
  • the zinc or the zinc alloy is distributed essentially homogeneously over the entire surface of the component blanks 18 and connects to the surface.
  • a uniform layer thickness is established on the component blanks 18, which can be set as desired between a few ⁇ m and over 100 ⁇ m, preferably between 5 ⁇ m and 120 ⁇ m.
  • the layer 34 is weldable and gives a tensile strength which can be more than 1300 MPa for a component 1 made of BTR 165. With the thermal diffusion ons practically no residues or emissions occur in the environment.
  • the coating process is concluded with a passivation process in an adjacent passivation station 35, in which the drums 31 are removed from the coating system 30, cooled in a cooling station 36, ultrasonically cleaned of residues of the coating powder in a cleaning station 37 and in a tempering station 38 are annealed at a temperature of about 200 ° C for about 1 h, wherein the layer 34 is passivated. If necessary, suitable passivation additives can also be added. The finished corrosion-protected components 1 can then be removed from the drum 31.
  • the zinc-containing layer 34 is applied to the press-hardened component blank 18 in a coating area 40 using a hot-dip galvanizing process.
  • Component blanks 18 are suspended in an immersion housing 41, which transports the component blanks 18 through several stations of the coating area 40.
  • a flux station 42 the component blanks 18 are hung in a suitably tempered flux bath, preferably with zinc chloride at approximately 360 ° C., then dried in a drying station 43, preferably at 80 ° C. and subsequently in a galvanizing bath 44 at approximately 400 ° C. 450 ° C immersed and galvanized.
  • the finished components 1 can then be removed from the immersion housing 31.
  • FIGS. 3a to 3d schematically show an alternative process sequence for producing a spatially shaped, press-hardened component 1 from a semifinished product 2, in particular from a precoated circuit board 3.
  • the board 3 is cut out of a pre-coated, hot-formable sheet in the board press 6.
  • the coated blank 3 is then subjected to a hot-forming step (FIG. 3b).
  • the circuit board 3 is inserted by a manipulator 20 'into a continuous furnace 21', in which the circuit board 3 is heated to a temperature which is above the transition temperature in the austenitic microstructure.
  • the heated blank 3 is then placed in a hot-forming tool 23 ', in which a component blank 10' of the desired three-dimensional shape is formed from the blank 3; the component blank 10 'is cooled so quickly that it undergoes (component-wide or local) hardening.
  • the continuous furnace 21 'and the hot-forming tool 23' can be in a protective gas atmosphere 26 ', but the pre-coating of the blanks 3 avoids scaling of the blanks 3 over the entire surface.
  • the hardened component blank 10 ' is then transferred to a cutting device 15' (FIG. 3c), in which the component blank 10 'is trimmed on the edge side in order to produce a blank 18' with an edge contour 12.
  • the trimming is preferably done with a laser 14 '.
  • the cut off edge regions 11 ' are disposed of.
  • the press-hardened and trimmed blank 18 ' is coated in a coating system 30, in a manner analogous to process stage V or V in FIGS.
  • the press-hardened, coated component 1 is particularly suitable as a body component in vehicle construction, which are produced in large quantities.
  • the method according to the invention enables advantageous process control with short cycle times; all process steps have industrialization potential.
  • conventional pre-forming is possible.
  • the subsequent application of an additional corrosion protection means that conventional forming and trimming is also possible with high-strength materials, so that - when using the production method according to FIG. 1 - the laser cutting, which is expensive in large quantities, can be replaced inexpensively.
  • sheet metal components can be secured during their development by conventional forming simulation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'invention concerne un procédé de production de composants, en particulier de carrosserie, trempés sous pression à partir d'un produit semi-fini (2) constitué d'une tôle d'acier non trempée pouvant être formée à chaud, ainsi qu'un composant trempé sous pression produit par ce procédé. Ce procédé comprend les étapes suivantes : une ébauche de composant (10) est formée par un procédé de formage à froid, en particulier un procédé d'emboutissage, à partir du produit semi-fini (2) prérevêtu d'une première couche (33) ; les bords de ladite ébauche de composant (10) sont découpés de façon à obtenir un contour (12') correspondant sensiblement à celui du composant à produire (1) ; l'ébauche de composant découpée (17) est chauffée et trempée sous pression dans un outil de formage à chaud (23), puis l'ébauche de composant trempée sous pression (18) est recouverte d'une seconde couche (34) anticorrosion lors d'une étape de revêtement.
EP04741163.2A 2003-07-22 2004-07-20 Procede de production d'un composant trempe sous pression Expired - Fee Related EP1646459B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003133166 DE10333166A1 (de) 2003-07-22 2003-07-22 Pressgehärtetes Bauteil und Verfahren zur Herstellung eines pressgehärteten Bauteils
PCT/EP2004/008087 WO2005009642A1 (fr) 2003-07-22 2004-07-20 Composant trempe sous pression et procede de production d'un composant trempe sous pression

Publications (3)

Publication Number Publication Date
EP1646459A1 true EP1646459A1 (fr) 2006-04-19
EP1646459B1 EP1646459B1 (fr) 2010-05-05
EP1646459B2 EP1646459B2 (fr) 2019-01-02

Family

ID=34042013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04741163.2A Expired - Fee Related EP1646459B2 (fr) 2003-07-22 2004-07-20 Procede de production d'un composant trempe sous pression

Country Status (6)

Country Link
US (1) US8127449B2 (fr)
EP (1) EP1646459B2 (fr)
JP (1) JP2006529002A (fr)
DE (2) DE10333166A1 (fr)
WO (1) WO2005009642A1 (fr)
ZA (1) ZA200600594B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017201674B3 (de) 2017-02-02 2018-03-29 Ford Global Technologies, Llc Verfahren zur Herstellung eines pressgehärteten Bauteils sowie Pressform

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333165A1 (de) * 2003-07-22 2005-02-24 Daimlerchrysler Ag Pressgehärtetes Bauteil und Verfahren zur Herstellung eines pressgehärteten Bauteils
DE102005033773A1 (de) * 2005-07-15 2007-01-18 Thyssenkrupp Steel Ag Verfahren zur Herstellung von korrosionsgeschütztem Stahlblech
MX2009004453A (es) 2006-10-30 2009-05-11 Arcelormittal France Bandas de acero recubiertas, metodos para su fabricacion y uso, piezas en bruto estampadas y productos estampados preparados de las mismas y articulos de manufactura que contienen tal producto estampado.
EP2014777B1 (fr) * 2007-07-11 2013-01-09 Neue Materialien Bayreuth GmbH Procédé et dispositif pour le traitement thermique d'une tôle métallique
ATE535631T1 (de) * 2007-10-02 2011-12-15 Thyssenkrupp Steel Europe Ag Verfahren zum herstellen eines stahlbauteils durch warmformen und durch warmformen hergestelltes stahlbauteil
DE102007057855B3 (de) 2007-11-29 2008-10-30 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Formbauteils mit mindestens zwei Gefügebereichen unterschiedlicher Duktilität
JP5155646B2 (ja) * 2007-12-13 2013-03-06 アイシン高丘株式会社 熱間プレス成形装置及び熱間プレス成形方法
WO2010024530A2 (fr) * 2008-08-28 2010-03-04 현대제철 주식회사 Procédé et appareil de durcissement par pressage continu
EP2287342B1 (fr) * 2008-08-28 2012-09-19 Hyundai Steel Company Four de chauffage pour procédé de durcissement par pressage
DE102008043401B4 (de) * 2008-11-03 2017-09-21 Volkswagen Ag Verfahren und Vorrichtung zur Herstellung von Blechbauteilen mittels Warmumformung sowie dadurch hergestellte Blechbauteile
KR101281740B1 (ko) * 2009-01-23 2013-07-17 가부시키가이샤 후카이 세이사쿠쇼 엠보스가 형성된 강판의 가압성형방법
DE102009007909A1 (de) 2009-02-06 2010-08-12 Thyssenkrupp Steel Europe Ag Verfahren zum Herstellen eines Stahlbauteils durch Warmformen und durch Warmformen hergestelltes Stahlbauteil
DE102009016027A1 (de) * 2009-04-02 2010-10-07 Volkswagen Ag Verfahren zur Herstellung eines Bauteils, insbesondere eines Karosserieteiles, sowie Fertigungsstraße zur Durchführung des Verfahrens
DE102009019496A1 (de) * 2009-05-04 2010-11-18 Braun, Elisabeth Vorrichtung und Verfahren zur Erwärmung warm umzuformender Werkstücke
DE102009026251A1 (de) * 2009-07-24 2011-02-03 Thyssenkrupp Steel Europe Ag Verfahren und Vorrichtung zum energieeffizienten Warmumformen
EP2289770A1 (fr) * 2009-08-28 2011-03-02 ThyssenKrupp Steel Europe AG Tôle à flans mince soudés traitée anti-corrosion pour un véhicule automobile et son procédé de fabrication
DE102009050533A1 (de) * 2009-10-23 2011-04-28 Thyssenkrupp Sofedit S.A.S Verfahren und Warmumformanlage zur Herstellung eines gehärteten, warm umgeformten Werkstücks
CN102985571B (zh) * 2010-03-24 2014-07-30 杰富意钢铁株式会社 超高强度部件的制造方法及使用方法
US20110283851A1 (en) * 2010-05-21 2011-11-24 Thyssenkrupp Sofedit S.A.S. Method and hot forming system for producing press-hardened formed components of sheet steel
JP5431251B2 (ja) * 2010-06-10 2014-03-05 株式会社神戸製鋼所 曲げ加工用金型、これを用いた自動車用サスペンションアームの製造装置およびその製造方法
DE102010030465B4 (de) * 2010-06-24 2023-12-07 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Herstellen eines Blechformteils aus einem höherfesten Stahlblechmaterial mit einer elektrolytisch aufgebrachten Zink-Nickel-Beschichtung
KR101033361B1 (ko) * 2010-06-30 2011-05-09 현대하이스코 주식회사 생산성을 향상시킨 열간 프레스 성형체 제조방법
KR101033767B1 (ko) * 2010-11-03 2011-05-09 현대하이스코 주식회사 열처리 경화 강판을 이용한 국부적으로 이종강도를 가지는 자동차 부품 제조방법
US9238847B2 (en) 2011-08-05 2016-01-19 Honda Motor Co., Ltd. Tailored hardening of boron steel
DE102011119562A1 (de) * 2011-11-26 2013-05-29 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Äußere Wandstruktur für die Karosserie eines Kraftfahrzeuges sowie Fahrzeugkarosserie
KR101402019B1 (ko) * 2012-05-16 2014-06-02 주식회사 성우하이텍 핫 스탬핑용 금형
CN102756251B (zh) * 2012-05-18 2014-05-21 山东大王金泰集团有限公司 高强度钢板热冲压成形生产线及其生产工艺
DE102013204449A1 (de) * 2013-03-14 2014-09-18 Zf Friedrichshafen Ag Verfahren zur Herstellung eines korrosionsgeschützten Blechteils
CA2910703C (fr) 2013-05-17 2018-07-03 Ak Steel Properties, Inc. Acier recouvert de zinc pour application de durcissement par presse et procede de production associe
CN106460083A (zh) * 2014-03-25 2017-02-22 麦格纳动力系有限公司 使用热辅助校准过程形成动力传递部件的方法及使用该方法制造的动力传递部件
CN103934381B (zh) * 2014-04-15 2016-05-11 宁波沃特汽车部件有限公司 汽车高强度板底盘部件成型工艺
DE102014006683A1 (de) * 2014-05-08 2015-11-12 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Fertigungsstraße für die Bearbeitung mindestens eines Flächenbauteils und Verfahren zur Bearbeitung des mindestens einen Flächenbauteils in der Fertigungsstraße
DE102014109315C5 (de) 2014-07-03 2022-02-24 Thyssenkrupp Ag Verfahren zum Herstellen von Profilen aus Metall
KR101523177B1 (ko) * 2014-12-11 2015-05-27 현대하이스코 주식회사 금형의 도금소착 방지를 위한 핫스탬핑 장치 및 방법
CN104841780B (zh) * 2015-05-06 2016-10-26 翟述基 高强钢板冲压件热成型生产自动线
WO2017029773A1 (fr) * 2015-08-19 2017-02-23 Ｊｆｅスチール株式会社 Procédé pour la fabrication de pièce pressée à chaud et pièce pressée à chaud
US10767756B2 (en) 2015-10-13 2020-09-08 Magna Powertrain Inc. Methods of forming components utilizing ultra-high strength steel and components formed thereby
KR101758478B1 (ko) * 2015-12-14 2017-07-17 주식회사 포스코 소재 가공 장치
DE102015016532A1 (de) 2015-12-18 2017-06-22 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Werkzeuganordnung zur Integration in einer Fertigungslinie zur Fertigung eines Warmumformbauteils aus einer Platine, Fertigungslinie mit der Werkzeuganordnung und Verfahren zur Fertigung des Warmumformbauteils aus der Platine mit der Fertigungslinie
CN105834268A (zh) * 2016-03-28 2016-08-10 昆山传适达汽车传动***有限公司 铝合金板材热冲压成型生产线
DE102017214561B4 (de) * 2016-08-29 2019-05-16 Magna Powertrain Inc. Verfahren zum Bilden einer Keilverzahnung in einer Komponente unter Verwendung von ultrahochfestem Stahl
US10837072B2 (en) 2016-08-29 2020-11-17 Magna Powertrain Inc. Splined power transmission components made using heat-assisted calibration process and method of forming such splined power transmission components
CH713079A1 (de) 2016-10-26 2018-04-30 Thermission Ag Verfahren für die Aufbringung einer Schichtstruktur durch Thermodiffusion auf eine metallische oder intermetallische Oberfläche.
KR101881893B1 (ko) * 2016-12-09 2018-07-26 주식회사 엠에스 오토텍 열간 성형부품 제조방법
GB201714831D0 (en) * 2017-09-14 2017-11-01 Imp Innovations Ltd Method for preparing and forming sheet material
DE102018207488A1 (de) 2018-05-15 2019-11-21 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines Blechbauteils
CN111434405B (zh) * 2019-06-12 2021-10-15 苏州普热斯勒先进成型技术有限公司 一种热冲压件的制备方法及装置
SE545199C2 (en) * 2021-08-30 2023-05-16 Stilride AB Processing of a two dimensional sheet material
CN114653825A (zh) * 2022-03-25 2022-06-24 天津恒兴机械设备有限公司 一种钣金件间接热成型加工工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828045C1 (en) † 1988-08-18 1989-12-07 Hoesch Stahl Ag, 4600 Dortmund, De Method and apparatus for applying an anti-corrosive layer to the cut edges of a metal sheet
DE4307563C2 (de) * 1992-03-12 1994-09-22 Bayerische Motoren Werke Ag Verfahren zum Fertigen eines Blechstrukturteils, das partiell eine Mehrfachblechstruktur aufweist, sowie nach dem Verfahren hergestelltes Blechstrukturteil
DE19807823A1 (de) * 1998-02-26 1999-09-09 Fraunhofer Ges Forschung Verfahren zur Herstellung einer korrosionsschützenden Beschichtung und Schichtsystem für Substrate aus Leichtmetall
EP0964078A1 (fr) * 1998-06-12 1999-12-15 Enamels and Ceramic Coatings International C.V. Emaillage d'un acier prérevêtu d'une couche de zinc ou d'un alliage de zinc
FR2807447B1 (fr) † 2000-04-07 2002-10-11 Usinor Procede de realisation d'une piece a tres hautes caracteristiques mecaniques, mise en forme par emboutissage, a partir d'une bande de tole d'acier laminee et notamment laminee a chaud et revetue
DE10049660B4 (de) 2000-10-07 2005-02-24 Daimlerchrysler Ag Verfahren zum Herstellen lokal verstärkter Blechumformteile
US6896970B2 (en) * 2001-01-31 2005-05-24 Areway, Inc. Corrosion resistant coating giving polished effect
DE10135647C1 (de) * 2001-07-21 2002-07-25 Daimler Chrysler Ag Verfahren zur Herstellung eines Blechumformteils mit Korrosionsschutz und nach dem Verfahren hergestelltes Blechumformteil
DE10149221C1 (de) 2001-10-05 2002-08-08 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines gehärteten Blechprofils
EP1536898B1 (fr) 2002-09-13 2006-05-31 DaimlerChrysler AG Procede de production d'un piece trempee a la presse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005009642A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017201674B3 (de) 2017-02-02 2018-03-29 Ford Global Technologies, Llc Verfahren zur Herstellung eines pressgehärteten Bauteils sowie Pressform

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US20070175040A1 (en) 2007-08-02
EP1646459B2 (fr) 2019-01-02
DE502004011133D1 (de) 2010-06-17
DE10333166A1 (de) 2005-02-10
JP2006529002A (ja) 2006-12-28
EP1646459B1 (fr) 2010-05-05
US8127449B2 (en) 2012-03-06
WO2005009642A1 (fr) 2005-02-03

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