EP3998359A4 - Low-strength steel sheet for hot stamping, hot-stamped component, and method for manufacturing hot-stamped component - Google Patents

Low-strength steel sheet for hot stamping, hot-stamped component, and method for manufacturing hot-stamped component Download PDF

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Publication number
EP3998359A4
EP3998359A4 EP20856767.7A EP20856767A EP3998359A4 EP 3998359 A4 EP3998359 A4 EP 3998359A4 EP 20856767 A EP20856767 A EP 20856767A EP 3998359 A4 EP3998359 A4 EP 3998359A4
Authority
EP
European Patent Office
Prior art keywords
hot
stamped component
steel sheet
low
strength steel
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.)
Pending
Application number
EP20856767.7A
Other languages
German (de)
French (fr)
Other versions
EP3998359A1 (en
Inventor
Sae Hamamoto
Tatsuya Asai
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP3998359A1 publication Critical patent/EP3998359A1/en
Publication of EP3998359A4 publication Critical patent/EP3998359A4/en
Pending 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0242—Flattening; Dressing; Flexing
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2251/00—Treating composite or clad material
    • C21D2251/02—Clad material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP20856767.7A 2019-08-27 2020-08-18 Low-strength steel sheet for hot stamping, hot-stamped component, and method for manufacturing hot-stamped component Pending EP3998359A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019154727A JP7235621B2 (en) 2019-08-27 2019-08-27 Steel plate for low-strength hot stamping, hot stamped parts, and method for manufacturing hot stamped parts
PCT/JP2020/031118 WO2021039499A1 (en) 2019-08-27 2020-08-18 Low-strength steel sheet for hot stamping, hot-stamped component, and method for manufacturing hot-stamped component

Publications (2)

Publication Number Publication Date
EP3998359A1 EP3998359A1 (en) 2022-05-18
EP3998359A4 true EP3998359A4 (en) 2023-04-19

Family

ID=74678773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20856767.7A Pending EP3998359A4 (en) 2019-08-27 2020-08-18 Low-strength steel sheet for hot stamping, hot-stamped component, and method for manufacturing hot-stamped component

Country Status (9)

Country Link
US (1) US20220298592A1 (en)
EP (1) EP3998359A4 (en)
JP (1) JP7235621B2 (en)
KR (1) KR20220035961A (en)
CN (1) CN114258434B (en)
BR (1) BR112022003304A2 (en)
CA (1) CA3150774A1 (en)
MX (1) MX2022002260A (en)
WO (1) WO2021039499A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0969112A1 (en) * 1997-03-17 2000-01-05 Nippon Steel Corporation Dual-phase high-strength steel sheet having excellent dynamic deformation properties and process for preparing the same
US20070037006A1 (en) * 2003-09-24 2007-02-15 Tatsuo Yokoi Hot rolled steel sheet for processing and method for manufacturing the same
US20090050244A1 (en) * 2006-05-16 2009-02-26 Jfe Steel Corporation Hot-Rolled High Strength Steel Sheet Having Excellent Ductility, Stretch-Flangeability, and Tensile Fatigue Properties and Method for Producing the Same
US20140332123A1 (en) * 2011-12-19 2014-11-13 Jfe Steelcorporation High-strength steel sheet and method for producing the same
US20140332119A1 (en) * 2011-12-12 2014-11-13 Jfe Steel Corporation High strength cold rolled steel sheet with high yield ratio and method for producing the same
US20150010775A1 (en) * 2012-01-13 2015-01-08 Nippon Steel & Sumitomo Metal Corporation Hot stamped steel and method for producing hot stamped steel
WO2015034021A1 (en) * 2013-09-05 2015-03-12 株式会社神戸製鋼所 High-strength steel sheet having a high yield ratio and moldability, and method for producing same
US20160060722A1 (en) * 2013-04-02 2016-03-03 Nippon Steel & Sumitomo Metal Corporation Hot-stamped steel, cold-rolled steel sheet and method for producing hot-stamped steel

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11104750A (en) * 1997-09-30 1999-04-20 Nissan Motor Co Ltd Press forming method for abutt welding board
JP4520549B2 (en) * 1999-06-23 2010-08-04 新日本製鐵株式会社 Press forming method of different material tailored blanks with excellent formability
JP4316842B2 (en) * 2002-07-26 2009-08-19 アイシン高丘株式会社 Method for manufacturing tailored blank press molded products
JP2004270029A (en) * 2003-02-18 2004-09-30 Nippon Steel Corp Galvanized steel sheet excellent in zinc volatility resistance
JP4452157B2 (en) 2004-02-06 2010-04-21 新日本製鐵株式会社 600-1200 MPa class high-strength member for automobiles with excellent strength uniformity in the member and method for producing the same
JP4427462B2 (en) 2005-01-21 2010-03-10 新日本製鐵株式会社 Steel member for vehicle and method for manufacturing the same
JP4757022B2 (en) * 2005-12-28 2011-08-24 住友軽金属工業株式会社 High strength and toughness aluminum alloy extruded material and forged material excellent in corrosion resistance, and method for producing the extruded material and forged material
WO2008110670A1 (en) 2007-03-14 2008-09-18 Arcelormittal France Steel for hot working or quenching with a tool having an improved ductility
JP5476452B2 (en) * 2012-11-27 2014-04-23 トヨタ自動車株式会社 High strength, high toughness aluminum alloy forging material with excellent corrosion resistance, its manufacturing method, and suspension parts
CN107208211B (en) * 2015-03-30 2018-12-04 新日铁住金株式会社 Cold forging age-hardening steel
KR20190042067A (en) * 2016-10-31 2019-04-23 닛폰세이테츠 가부시키가이샤 METHOD OF MANUFACTURING RUBBER PARTS
TWI683002B (en) * 2017-10-02 2020-01-21 日商日本製鐵股份有限公司 Hot stamped steel, steel sheet for hot stamping, and manufacturing methods thereof
JP7007953B2 (en) 2018-03-12 2022-01-25 株式会社三共 Slot machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0969112A1 (en) * 1997-03-17 2000-01-05 Nippon Steel Corporation Dual-phase high-strength steel sheet having excellent dynamic deformation properties and process for preparing the same
US20070037006A1 (en) * 2003-09-24 2007-02-15 Tatsuo Yokoi Hot rolled steel sheet for processing and method for manufacturing the same
US20090050244A1 (en) * 2006-05-16 2009-02-26 Jfe Steel Corporation Hot-Rolled High Strength Steel Sheet Having Excellent Ductility, Stretch-Flangeability, and Tensile Fatigue Properties and Method for Producing the Same
US20140332119A1 (en) * 2011-12-12 2014-11-13 Jfe Steel Corporation High strength cold rolled steel sheet with high yield ratio and method for producing the same
US20140332123A1 (en) * 2011-12-19 2014-11-13 Jfe Steelcorporation High-strength steel sheet and method for producing the same
US20150010775A1 (en) * 2012-01-13 2015-01-08 Nippon Steel & Sumitomo Metal Corporation Hot stamped steel and method for producing hot stamped steel
US20160060722A1 (en) * 2013-04-02 2016-03-03 Nippon Steel & Sumitomo Metal Corporation Hot-stamped steel, cold-rolled steel sheet and method for producing hot-stamped steel
WO2015034021A1 (en) * 2013-09-05 2015-03-12 株式会社神戸製鋼所 High-strength steel sheet having a high yield ratio and moldability, and method for producing same

Also Published As

Publication number Publication date
JP2021031745A (en) 2021-03-01
WO2021039499A1 (en) 2021-03-04
MX2022002260A (en) 2022-03-22
CN114258434A (en) 2022-03-29
KR20220035961A (en) 2022-03-22
EP3998359A1 (en) 2022-05-18
US20220298592A1 (en) 2022-09-22
CN114258434B (en) 2022-12-23
BR112022003304A2 (en) 2022-05-24
CA3150774A1 (en) 2021-03-04
JP7235621B2 (en) 2023-03-08

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Owner name: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ASAI, TATSUYA

Inventor name: HAMAMOTO, SAE