US20120060982A1 - Method of producing press-hardened structural parts - Google Patents

Method of producing press-hardened structural parts Download PDF

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Publication number
US20120060982A1
US20120060982A1 US13/046,251 US201113046251A US2012060982A1 US 20120060982 A1 US20120060982 A1 US 20120060982A1 US 201113046251 A US201113046251 A US 201113046251A US 2012060982 A1 US2012060982 A1 US 2012060982A1
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United States
Prior art keywords
structural part
linear zone
press
holding device
heat treatment
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Abandoned
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US13/046,251
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English (en)
Inventor
Friedrich Bohner
Otto Buschsieweke
Ulrich Huschen
Paul Kaupmann
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.)
Benteler Automobiltechnik GmbH
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Benteler Automobiltechnik GmbH
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Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Assigned to BENTELER AUTOMOBILTECHNIK GMBH reassignment BENTELER AUTOMOBILTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOHNER, FRIEDRICH, BUSCHSIEWEKE, OTTO, HUSCHEN, ULRICH, KAUPMANN, PAUL
Publication of US20120060982A1 publication Critical patent/US20120060982A1/en
Abandoned legal-status Critical Current

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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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/018—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of a noble metal or a noble metal alloy
    • 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
    • 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
    • C21D2261/00—Machining or cutting being involved

Definitions

  • the present invention relates to a method of producing press-hardened structural parts, in particular for a body or components of motor vehicles.
  • New Steel Body concept To decrease the total weight and to reduce fuel consumption of motor vehicles, the so called New Steel Body concept has been developed in recent years, involving lightweight high-strength steel construction that allows designers to save weight by reducing the sheet metal thickness and thus the total weight of the vehicle.
  • Such vehicle components of high strength steel normally undergo heat treatment and press-hardening.
  • U.S. Pat. No. 5,972,134 discloses a process for the manufacture of a metallic molded structural part for motor vehicle components such as door impact girders or bumpers with areas with a higher ductility in relation to the rest of the structural component part.
  • partial areas of a plate are initially heated to a temperature of 900° C. within a period of less than 30 seconds.
  • the thermal-treated plate is shaped in a pressing tool to form the molded structural part and is heat-treated in the pressing tool.
  • This conventional process suffers shortcomings in particular, when narrow and especially linear areas are subjected to heat treatment. Temperatures reaching up to 900° C.
  • Materials used during heat treatment and press-hardening and the resultant structural part have high strengths of 700 MPa and more during shaping. At such strengths, the risk of a delayed cracking and the possibility of unpredictable failure of the structural parts rises in view of the presence of hydrogen which can be absorbed during production (metallurgical hydrogen) or as a result of surface treatment or when the material corrodes.
  • a delayed cracking may also be encountered after undergoing a plastic deformation during which the surface is activated.
  • (Hard) cut edges of high or super high strength structures that are exposed to a corrosive environment in the presence of atomic hydrogen tend to brittle in the area of the cut edges as a result of inherent stress and thus tend to encounter a delayed cracking.
  • heat treated and press-hardened motor vehicle components such as B pillars for example are involved, such a hydrogen embrittlement of trimmed edges may lead to reduced energy absorption in the event of a crash.
  • a method includes the steps of subjecting a blank of unhardened steel sheet in a press tool to a hot forming and press-hardening process to produce a structural part, heat treating at least one linear zone of the structural part, and subjecting the structural part after the heat treating step to a bending or cutting operation along the linear zone.
  • the mechanical properties of a press-hardened structural part is optimized in a narrow linear zone through heat treatment in order to permit subsequent bending or cutting operations to be executed simpler and more cost-efficient.
  • the structural part that has been completely through hardened is hereby heat treated along a linear zone commensurate with a later bending line or trimming line after being hot formed.
  • strength is reduced in the linear zone and ductility is increased.
  • the hot formed and press-hardened structural part can then in an optimum manner undergo a bending or cutting operation along the linear zone.
  • the processing steps are thus efficient, cost saving, and used processing machines are subject to less wear.
  • the method according to the present invention results in a resistance to a delayed cracking of the structural parts.
  • Critical parameters that promote delayed cracking include i.a. local accumulation of hydrogen atoms and the presence of residual or internal stress.
  • the present invention proposes to reduce the strength of edges of the structural part, especially the cut edges, and to increase ductility.
  • the heat treatment e.g. inductive heat treatment
  • mechanical properties of the fully through hardened structural part are locally optimized along the cut edges and/or in the regions adjacent to the cut edges so that the tendency to embrittlement and cracking are minimized or even eliminated.
  • the structural part After hot forming and press-hardening, the structural part has a tensile strength of at least 700 MPa. Currently preferred is a tensile strength of 1,000 MPa to 1,500 MPa.
  • the ductility in the linear zone can be increased by at least 5% in relation to a region of the structural part that is adjacent to the linear zone and does not undergo a heat treatment.
  • the hot formed and press-hardened structural part is suitably clamped and fixed in position during heat treatment in a holding device.
  • the heat treatment can hereby be carried out within the holding device in accordance with a temperature-time diagram that is specific for the structural part at hand.
  • the linear zone of the structural part can be subjected to heat treatment at a temperature between 100° C. and 700° C. over a time period of less than or equal to ( ⁇ )30 seconds. As a result, ductility is locally increased in the linear zone and the strength reduced.
  • the heat treating step can be executed inductively.
  • the heat treating step may also be executed through infrared radiation.
  • Inductive heat treatment is applicable for very narrow linear zones of the structural part. A very small and fine transition zone can hereby be created between regions of high strength and high hardness and regions of less strength and less hardness.
  • the structural part can be clamped in the holding device until the structural part has cooled down to a temperature level that does not cause distortion.
  • the structural part does not encounter or encounters only insignificant distortion which is within permissible dimensional tolerances after the heat treatment.
  • the holding device with integrated heating unit for example integrated inductor, thus forms an important aspect of the present invention.
  • At least some areas of the structural part can be maintained in the holding device under elastic tension while the linear zone undergoes heat treatment.
  • the structural part can be further shaped with a desired geometry. In this way, by superimposing forced bending, tensile and pressure forces and heat stress, the properties of the structural part can be tailored in the region undergoing heat treatment.
  • the structural part can be secured in the holding device in such a way that geometrical changes of the structural part are compensated during the heat treating step so that the structural part has a desired geometry after undergoing heat treatment and/or removal from the holding device. There is thus no need to necessarily correspond the contour of the holding device to the desired end geometry of the structural part. Geometric changes of the structural part are taken into account during heat treatment and utilized during configuration of the structural part and production of the linear zone that has changed material microstructure.
  • the hardened structural part is heated in the holding device for a time period of 30 seconds to a temperature between 100° C. and 700° C.
  • the heat treatment is executed over a time period of less than 10 seconds.
  • a time period of 2 seconds is a time period of 2 seconds.
  • the structural part may be provided with a surface coating.
  • the surface coating may be applied onto the blank before undergoing heat treatment and press-hardening or after subjecting the linear zone to heat treatment.
  • a pre-coated blank as starting material include hot dip aluminized blank, a blank coated with an aluminum-silicon alloy, or a blank coated with a zinc or aluminum-zinc alloy.
  • a steel blank used as starting material is thus provided with a protection against corrosion already before hot forming and press-hardening. The protection against corrosion may be based on a light metal alloy.
  • FIG. 1 is a perspective illustration of an inductor for use in the production of a structural part in accordance with to the present invention
  • FIG. 2 is a perspective illustration of a holding device with integrated inductor for use in the production of a structural part in accordance with to the present invention
  • FIG. 3 is an enlarged detailed view of an area encircled in FIG. 2 and marked “A”;
  • FIG. 4 is a perspective illustration of a detail of the holding device, depicting the disposition of the inductor.
  • FIG. 5 a is a schematic illustration of a detail of a structural part
  • FIG. 5 b is a schematic illustration of a side area of the structural part with bent longitudinal edge.
  • FIG. 5 c is a schematic illustration of the side area of the structural part with trimmed longitudinal edge.
  • FIG. 1 there is shown a perspective illustration of an inductor, generally designated by reference numeral 1 , for use in the production of a structural part 5 ( FIGS. 5 a , 5 b ) in accordance with the present invention.
  • an inductor is described here by way of example, it is of course also conceivable to use infrared radiation for example as an alternative.
  • the inductor 1 includes a narrow square copper tube 2 which has three sides facing away from the surface of the structural part being treated and surrounded by concentrator sheets 3 , 4 , respectively.
  • the copper tube 2 may have a width of 4 millimeters and a height of 8 millimeters.
  • the concentrator sheets 3 , 4 extend over the entire length of the copper tube 2 and have a thickness of 4 millimeters.
  • the inductor 1 has a longitudinal dimension which is a multiple of the width thereof, and may be configured with several curves in the course of its longitudinal dimension. The geometric contour and curved profile is suited to the heat treatment being carried out on the structural part 5 , as will be described in greater detail hereinafter,
  • FIGS. 2 and 3 show the inductor 1 integrated in a holding device 6 .
  • the holding device 6 essentially includes a top tool 7 and a bottom tool 8 .
  • Both, top and bottom tools 7 , 8 are made of light metal, such as aluminum or aluminum alloy. Aluminum or aluminum alloy have the benefit that the material is heat conducting.
  • Production of a structural part 5 of complex configuration, for use in a body or as component of a motor vehicle, is carried out as follows.
  • a blank of non-hardened and hot formable steel sheet is heated to a temperature above the austenitizing temperature and hot formed in a press tool into the structural part 5 which is clamped in the press tool and undergoes press-hardening.
  • the structural part 5 has a tensile strength of at least 700 MPa.
  • the thus press-hardened structural part 5 is removed from the press tool and a targeted narrow linear zone B of the structural part 5 is then subjected to a heat treatment.
  • linear zone B Although the disclosure relates to the presence of one linear zone B, it will be understood by persons skilled in the art that this is done by way of example only, as the structural part may, of course, have several linear zones that are subjected locally to heat treatment in order to reduce strength and increase ductility.
  • the linear zone B corresponds hereby to the course of a later bending line or trimming line of the structural part 5 , as will be described hereinafter with reference to FIGS. 5 a and 5 b.
  • the heat treatment takes place in the holding device 6 in which the hot formed and press-hardened structural part 5 is either received and clamped entirely in a form-fitting manner or by linear support surfaces 9 , 10 , shown in FIG. 3 .
  • the support surfaces 9 , 10 extend along the structural part contour on both sides in correspondence to the course of the linear zone B and inductor 1 , i.e. the bending or trimming line.
  • the inductor 1 is integrated in an oblong hole 11 of the holding device 6 , as shown in FIG. 4 .
  • the inductor 1 is suitably integrated in the upper tool 7 , although it is, of course, conceivable to integrate the inductor in the lower tool 8 .
  • the inductor 1 with its square copper tube 2 and the surrounding concentrator sheets 3 , 4 is arranged in the holding device 6 such as to have a same distance to the surface of the structural part 5 over the entire length. Currently preferred is a distance of 2 millimeters.
  • the linear zone B is subjected to a heat treatment.
  • the heat treatment is performed inductively by means of the inductor 1 .
  • the linear zone B of the hardened structural part 5 is hereby heated to a temperature between 100° C. and 700° C. for a time period of less than or equal to 30 seconds. Currently preferred is a time period of 2 seconds.
  • the heat treatment of the linear zone B increases its ductility and reduces its strength.
  • the holding device 6 retains the shape of the inductively heated structural part 5 , normally maximal 30 seconds, until the temperature is lowered to a level that does not cause warping or distortion of the structural part 5 .
  • the heat treatment and the resultant change in material properties can be carried out in a very precise manner and tailored to a very small or narrow but relative long linear region (zone B) with fine transitions.
  • the tailored heat treatment prevents the drawbacks of hydrogen embrittlement, in particular hydrogen-induced cracking. A localized accumulation of hydrogen atoms and the presence of residual or internal tensions are reduced by the heat treatment to uncritical levels.
  • FIGS. 5 a , 5 b , 5 c show schematically a hot formed and press-hardened structural part 5 .
  • FIG. 5 a shows the three-dimensional structural part 5 after the linear zone B underwent heat treatment to alter its material property.
  • the targeted heat treatment at a temperature between 100° C. and 700° C. for a time period of 30 seconds increases ductility and reduces strength.
  • FIG. 5 b shows a right-hand side area 12 of the structural part 5 with bent longitudinal edge 13 .
  • the ductile strength-reducing linear zone B extends at the outer free end 14 of the bent side area 12 along the curved region of the longitudinal edge over the length of the structural part 5 .
  • FIG. 5 c shows the side area 12 of the structural part 5 with trimmed edge 15 .
  • the ductile strength-reducing linear zone B extends at the outer trimmed edge 15 over the length of the structural part 5 .
  • the cutting operation has been executed within the linear zone B.
  • the side area 12 is further bent in the linear zone B.
  • the structural part 5 can be provided with a surface coating.
  • Application of the surface coating may be carried out after heat treatment and following bending or trimming operations or also prior thereto.
  • the structural part 5 is hereby fixed in the holding device 6 in a way as to take into account geometrical changes of the structural part 5 as a result of the heat treatment so that the structural part 5 has the desired geometry after heat treatment and/or removal from the holding device 6 .
US13/046,251 2010-03-12 2011-03-11 Method of producing press-hardened structural parts Abandoned US20120060982A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102010011368.9A DE102010011368B4 (de) 2010-03-12 2010-03-12 Verfahren zur Herstellung von pressgehärteten Formbauteilen
DE102010011368.9-14 2010-03-12
EP10008035.7 2010-08-02
EP10008035.7A EP2366805B1 (de) 2010-03-12 2010-08-02 Verfahren zur Herstellung von pressgehärteten Formbauteilen

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EP (1) EP2366805B1 (de)
DE (1) DE102010011368B4 (de)
ES (1) ES2552377T3 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110233968A1 (en) * 2010-03-25 2011-09-29 Benteler Automobiltechnik Gmbh Transmission tunnel
US20110232808A1 (en) * 2010-03-25 2011-09-29 Benteler Automobiltechnik Gmbh Method for producing a motor vehicle component, and a body component
US20120137502A1 (en) * 2003-07-22 2012-06-07 Z.A.T. Zinc Anticorosion Technologies Sa Press-hardened component and associated production method
WO2016088665A1 (ja) * 2014-12-03 2016-06-09 本田技研工業株式会社 ホットスタンプ成形品の製造方法
JP2018089649A (ja) * 2016-12-02 2018-06-14 株式会社ワイテック プレス加工装置
US10486215B2 (en) 2017-06-16 2019-11-26 Ford Motor Company Apparatus and method for piercing and trimming hot stamped parts
WO2020230796A1 (ja) * 2019-05-16 2020-11-19 Ｊｆｅスチール株式会社 高強度部材、高強度部材の製造方法及び高強度部材用鋼板の製造方法
US11027325B2 (en) * 2016-12-22 2021-06-08 Benteler Automobiltechnik Gmbh Hot-formed metal sheet and method of producing an opening in such a metal sheet
US11161164B2 (en) * 2018-10-10 2021-11-02 Unipres Corporation Method for manufacturing a press-molded article, a retainer, and a manufacturing system for a press-molded article
DE102020115345A1 (de) 2020-06-09 2021-12-09 Frank Walz- und Schmiedetechnik GmbH Verfahren zur Herstellung eines Bauteils sowie Bauteil
US11447838B2 (en) * 2016-01-25 2022-09-20 Schwartz Gmbh Method and device for heat treating a metal component
WO2024086500A1 (en) * 2022-10-18 2024-04-25 Martinrea International US Inc. Process for heat treating portions of a steel article and assembly for forming a steelsheet article
WO2024091920A1 (en) * 2022-10-24 2024-05-02 Martinrea International US Inc. Process for heat treating portions of a steel article and assembly for forming a steelsheet article

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010011368B4 (de) 2010-03-12 2014-03-20 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von pressgehärteten Formbauteilen
DE102014215676B4 (de) * 2014-06-23 2022-12-29 Keiper Seating Mechanisms Co., Ltd. Verfahren zur Herstellung eines Bauteils, insbesondere einer Profilschiene
DE102014014458A1 (de) 2014-09-26 2015-04-02 Daimler Ag Verfahren und Vorrichtung zum Bearbeiten eines pressgehärteten Bauteils
EP3072980B1 (de) * 2015-03-26 2018-02-14 weba Werkzeugbau Betriebs GmbH Verfahren und vorrichtung zur herstellung eines partiell gehärteten formteils
DE102016103668B9 (de) * 2016-03-01 2017-05-18 Benteler Automobiltechnik Gmbh Weich und hart geschnittenes Kraftfahrzeugbauteil sowie Verfahren zu dessen Herstellung
DE102017128742A1 (de) 2017-12-04 2019-06-06 Benteler Automobiltechnik Gmbh Verfahren und Pressenwerkzeug zur Herstellung eines metallischen Formbauteils

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5972134A (en) * 1997-10-02 1999-10-26 Benteler Ag Manufacture of a metallic molded structural part
US6463779B1 (en) * 1999-06-01 2002-10-15 Mehmet Terziakin Instant heating process with electric current application to the workpiece for high strength metal forming
US6908141B2 (en) * 2001-02-26 2005-06-21 Nippon Steel Corporation Structural member for car and car body fabricated using the member
KR20050104990A (ko) * 2004-04-30 2005-11-03 현대자동차주식회사 자동차용 도어 임팩트 빔 및 그 장착구조
US20060130940A1 (en) * 2004-12-20 2006-06-22 Benteler Automotive Corporation Method for making structural automotive components and the like
US20060271161A1 (en) * 2005-05-26 2006-11-30 Boston Scientific Scimed, Inc. Selective treatment of stent side branch petals
US20080110535A1 (en) * 2005-05-30 2008-05-15 Kenji Oi High Tensile Strength Steel Material Having Excellent Delayed Fracture Resistance Property, and Method of Manufacturing the Same
US20090000708A1 (en) * 2007-06-29 2009-01-01 Gm Global Technology Operations, Inc. Method for manufacture of complex heat treated tubular structure

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE435527B (sv) 1973-11-06 1984-10-01 Plannja Ab Forfarande for framstellning av en detalj av herdat stal
SE9602257L (sv) 1996-06-07 1997-12-08 Plannja Hardtech Ab Sätt att framställa ståldetalj
DE19743802C2 (de) 1996-10-07 2000-09-14 Benteler Werke Ag Verfahren zur Herstellung eines metallischen Formbauteils
SE510056C2 (sv) 1997-08-07 1999-04-12 Ssab Hardtech Ab Sätt att tillverka en härdad ståldetalj
SE516374C2 (en) 2000-02-22 2002-01-08 Workpiece controlled shaping of metal, preferably in the form of plates or bands, comprises heating the workpiece across notches or zones to reduce locally the tensile strength
JP2005133194A (ja) 2003-10-06 2005-05-26 Kikuchi Co Ltd 被熱処理物品用クランプ装置
DE102004023579B4 (de) 2004-05-13 2014-04-03 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verfahren zur Wärmebehandlung eines Fügeteils aus hochfestem Stahl
DE102005018240B4 (de) 2005-04-19 2010-11-18 Benteler Automobiltechnik Gmbh Vorrichtung zum Umformen von Metallblechen
FR2889466B1 (fr) * 2005-08-05 2008-12-19 Thyssenkrupp Sofedit Fabrication d'une piece metallique par emboutissage a chaud et piece obtenue
WO2009123538A1 (en) 2008-04-03 2009-10-08 Gestam Hardtech Ab Method of manufacturing a press-formed sheet-metal product
DE102008021492B3 (de) * 2008-04-29 2009-07-23 Benteler Automobiltechnik Gmbh Verfahren zum Nacherwärmen von gehärteten Bauteilen
DE102008044523B4 (de) 2008-09-15 2011-06-16 Thyssenkrupp Steel Europe Ag Warmumformprofile
EP2175041A1 (de) * 2008-10-09 2010-04-14 C.R.F. Società Consortile per Azioni Verfahren zum Warmumformen von metallischen Platten
WO2010076247A1 (de) 2008-12-19 2010-07-08 Voestalpine Automotive Gmbh Verfahren zum herstellen partiell gehärteter bauteile aus stahlblech
DE102009016027A1 (de) 2009-04-02 2010-10-07 Volkswagen Ag Verfahren zur Herstellung eines Bauteils, insbesondere eines Karosserieteiles, sowie Fertigungsstraße zur Durchführung des Verfahrens
DE102010011368B4 (de) 2010-03-12 2014-03-20 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von pressgehärteten Formbauteilen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5972134A (en) * 1997-10-02 1999-10-26 Benteler Ag Manufacture of a metallic molded structural part
US6463779B1 (en) * 1999-06-01 2002-10-15 Mehmet Terziakin Instant heating process with electric current application to the workpiece for high strength metal forming
US6908141B2 (en) * 2001-02-26 2005-06-21 Nippon Steel Corporation Structural member for car and car body fabricated using the member
KR20050104990A (ko) * 2004-04-30 2005-11-03 현대자동차주식회사 자동차용 도어 임팩트 빔 및 그 장착구조
US20060130940A1 (en) * 2004-12-20 2006-06-22 Benteler Automotive Corporation Method for making structural automotive components and the like
US20060271161A1 (en) * 2005-05-26 2006-11-30 Boston Scientific Scimed, Inc. Selective treatment of stent side branch petals
US20080110535A1 (en) * 2005-05-30 2008-05-15 Kenji Oi High Tensile Strength Steel Material Having Excellent Delayed Fracture Resistance Property, and Method of Manufacturing the Same
US20090000708A1 (en) * 2007-06-29 2009-01-01 Gm Global Technology Operations, Inc. Method for manufacture of complex heat treated tubular structure

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120137502A1 (en) * 2003-07-22 2012-06-07 Z.A.T. Zinc Anticorosion Technologies Sa Press-hardened component and associated production method
US20110232808A1 (en) * 2010-03-25 2011-09-29 Benteler Automobiltechnik Gmbh Method for producing a motor vehicle component, and a body component
US9057114B2 (en) * 2010-03-25 2015-06-16 Benteler Automobiltechnik Gmbh Method for producing a motor vehicle component, and a body component
US10151009B2 (en) 2010-03-25 2018-12-11 Benteler Automobiltechnik Gmbh Method for producing a motor vehicle component, and a body component
US20110233968A1 (en) * 2010-03-25 2011-09-29 Benteler Automobiltechnik Gmbh Transmission tunnel
WO2016088665A1 (ja) * 2014-12-03 2016-06-09 本田技研工業株式会社 ホットスタンプ成形品の製造方法
JPWO2016088665A1 (ja) * 2014-12-03 2017-09-14 本田技研工業株式会社 ホットスタンプ成形品の製造方法
US11447838B2 (en) * 2016-01-25 2022-09-20 Schwartz Gmbh Method and device for heat treating a metal component
JP2018089649A (ja) * 2016-12-02 2018-06-14 株式会社ワイテック プレス加工装置
US11027325B2 (en) * 2016-12-22 2021-06-08 Benteler Automobiltechnik Gmbh Hot-formed metal sheet and method of producing an opening in such a metal sheet
US10486215B2 (en) 2017-06-16 2019-11-26 Ford Motor Company Apparatus and method for piercing and trimming hot stamped parts
US11161164B2 (en) * 2018-10-10 2021-11-02 Unipres Corporation Method for manufacturing a press-molded article, a retainer, and a manufacturing system for a press-molded article
JPWO2020230796A1 (ja) * 2019-05-16 2021-05-20 Ｊｆｅスチール株式会社 高強度部材、高強度部材の製造方法及び高強度部材用鋼板の製造方法
WO2020230796A1 (ja) * 2019-05-16 2020-11-19 Ｊｆｅスチール株式会社 高強度部材、高強度部材の製造方法及び高強度部材用鋼板の製造方法
DE102020115345A1 (de) 2020-06-09 2021-12-09 Frank Walz- und Schmiedetechnik GmbH Verfahren zur Herstellung eines Bauteils sowie Bauteil
WO2024086500A1 (en) * 2022-10-18 2024-04-25 Martinrea International US Inc. Process for heat treating portions of a steel article and assembly for forming a steelsheet article
WO2024091920A1 (en) * 2022-10-24 2024-05-02 Martinrea International US Inc. Process for heat treating portions of a steel article and assembly for forming a steelsheet article

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DE102010011368A1 (de) 2011-09-15
ES2552377T3 (es) 2015-11-27

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