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MX2019009880A - Hot stamp moulded body. - Google Patents

Hot stamp moulded body.

Info

Publication number
MX2019009880A
MX2019009880A MX2019009880A MX2019009880A MX2019009880A MX 2019009880 A MX2019009880 A MX 2019009880A MX 2019009880 A MX2019009880 A MX 2019009880A MX 2019009880 A MX2019009880 A MX 2019009880A MX 2019009880 A MX2019009880 A MX 2019009880A
Authority
MX
Mexico
Prior art keywords
crystal grains
plate thickness
hot stamp
moulded body
central portion
Prior art date
Application number
MX2019009880A
Other languages
Spanish (es)
Inventor
Maeda Daisuke
Toda Yuri
Hikida Kazuo
Abukawa Genki
FUJINAKA Shingo
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of MX2019009880A publication Critical patent/MX2019009880A/en

Links

Classifications

    • 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
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • 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
    • C22C38/04—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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • 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

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)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

The present invention provides a hot stamp moulded body which takes into consideration problems to be solved in the prior art, achieves high bendability, high ductility, and hydrogen embrittlement resistance characteristics in order to achieve impact resistance characteristics, and suppresses variation in hardness. A hot stamp moulded body according to the present invention is characterized by being provided with a plate thickness central portion, and a softened layer provided to one or both sides of the plate thickness central portion. The hot stamp moulded body is further characterized in that: the plate thickness central portion has a hardness in the range of 500-800 Hv inclusive; and, in the metal structure from a depth of 20 µm below the surface of the softened layer to a depth of ½ of the thickness of the softened layer, when areas surrounded by grain boundaries having a misorientation of 15˚ or higher, in a cross section parallel to the plate thickness direction, are defined as crystal grains, the total area ratio of crystal grains having a maximum crystal misorientation of 1˚ or lower inside the crystal grains defined above, and crystal grains having a maximum crystal misorientation in the range of 8-15˚ inclusive inside the crystal grains defined above is at least 50 %, but less than 85%.
MX2019009880A 2017-02-20 2018-02-20 Hot stamp moulded body. MX2019009880A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017029318 2017-02-20
PCT/JP2018/006086 WO2018151332A1 (en) 2017-02-20 2018-02-20 Hot stamp moulded body

Publications (1)

Publication Number Publication Date
MX2019009880A true MX2019009880A (en) 2019-10-04

Family

ID=63170320

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2019009880A MX2019009880A (en) 2017-02-20 2018-02-20 Hot stamp moulded body.

Country Status (11)

Country Link
US (1) US20200230681A1 (en)
EP (1) EP3584345A1 (en)
JP (2) JP6617835B2 (en)
KR (1) KR20190108128A (en)
CN (1) CN110225990A (en)
BR (1) BR112019017074A2 (en)
CA (1) CA3053659A1 (en)
MX (1) MX2019009880A (en)
RU (1) RU2019126029A (en)
TW (1) TWI666331B (en)
WO (1) WO2018151332A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200230681A1 (en) * 2017-02-20 2020-07-23 Nippon Steel Corporation Hot stamped body
WO2020203979A1 (en) 2019-03-29 2020-10-08 日本製鉄株式会社 Coated steel member, coated steel sheet, and methods for producing same
WO2020204027A1 (en) * 2019-04-01 2020-10-08 日本製鉄株式会社 Hot-stamping molded article and method for manufacturing same
US12134808B2 (en) 2019-05-31 2024-11-05 Nippon Steel Corporation Hot-stamping formed body
JP7231022B2 (en) * 2019-05-31 2023-03-01 日本製鉄株式会社 hot stamped body
EP4105343A4 (en) * 2020-02-13 2023-03-15 Nippon Steel Corporation HOT STAMPED MOLDED ARTICLE
EP4273281A4 (en) 2021-02-10 2024-06-05 Nippon Steel Corporation Hot-stamped molded body

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006104546A (en) 2004-10-08 2006-04-20 Nippon Steel Corp High strength automobile member and hot press method
US10072324B2 (en) * 2012-08-06 2018-09-11 Nippon Steel & Sumitomo Metal Corporation Cold-rolled steel sheet and method for manufacturing same, and hot-stamp formed body
JP5994748B2 (en) 2013-08-05 2016-09-21 Ｊｆｅスチール株式会社 High-strength press parts and manufacturing method thereof
KR101568549B1 (en) * 2013-12-25 2015-11-11 주식회사 포스코 Steel sheet for hot press formed product having high bendability and ultra high strength, hot press formed product using the same and method for manufacturing the same
JPWO2015097882A1 (en) 2013-12-27 2017-03-23 新日鐵住金株式会社 Hot pressed steel plate member, manufacturing method thereof, and hot pressed steel plate
JP2016003389A (en) * 2014-06-20 2016-01-12 株式会社神戸製鋼所 Steel sheet for hot pressing, hot press-formed product using the steel sheet, and manufacturing method thereof
EP3260565B1 (en) * 2015-02-20 2019-07-31 Nippon Steel Corporation Hot-rolled steel sheet
ES2769224T3 (en) * 2015-02-25 2020-06-25 Nippon Steel Corp Hot rolled steel sheet
US20200230681A1 (en) * 2017-02-20 2020-07-23 Nippon Steel Corporation Hot stamped body

Also Published As

Publication number Publication date
BR112019017074A2 (en) 2020-04-07
CN110225990A (en) 2019-09-10
RU2019126029A3 (en) 2021-03-22
JPWO2018151332A1 (en) 2019-02-21
JP6617835B2 (en) 2019-12-11
US20200230681A1 (en) 2020-07-23
RU2019126029A (en) 2021-03-22
CA3053659A1 (en) 2018-08-23
JP2020045562A (en) 2020-03-26
TW201835354A (en) 2018-10-01
TWI666331B (en) 2019-07-21
WO2018151332A1 (en) 2018-08-23
KR20190108128A (en) 2019-09-23
EP3584345A1 (en) 2019-12-25

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