EP4209610A4 - Hot stamping material and production method therefor - Google Patents

Hot stamping material and production method therefor Download PDF

Info

Publication number
EP4209610A4
EP4209610A4 EP21806609.0A EP21806609A EP4209610A4 EP 4209610 A4 EP4209610 A4 EP 4209610A4 EP 21806609 A EP21806609 A EP 21806609A EP 4209610 A4 EP4209610 A4 EP 4209610A4
Authority
EP
European Patent Office
Prior art keywords
production method
method therefor
hot stamping
stamping material
hot
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
EP21806609.0A
Other languages
German (de)
French (fr)
Other versions
EP4209610A1 (en
Inventor
Nu Ri Shin
Hun Chul Kang
Ji Hee Son
Byoung Hoon Kim
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.)
Hyundai Steel Co
Original Assignee
Hyundai Steel Co
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
Priority claimed from KR1020210042812A external-priority patent/KR20220029319A/en
Application filed by Hyundai Steel Co filed Critical Hyundai Steel Co
Publication of EP4209610A1 publication Critical patent/EP4209610A1/en
Publication of EP4209610A4 publication Critical patent/EP4209610A4/en
Pending legal-status Critical Current

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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • 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
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation
    • 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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • 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
    • C21D8/0242—Flattening; Dressing; Flexing
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing

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)
EP21806609.0A 2020-09-01 2021-06-08 Hot stamping material and production method therefor Pending EP4209610A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020200111293 2020-09-01
KR1020210042812A KR20220029319A (en) 2020-09-01 2021-04-01 Material for hot stamping and manufacturing the same
PCT/KR2021/007161 WO2022050536A1 (en) 2020-09-01 2021-06-08 Hot stamping material and production method therefor

Publications (2)

Publication Number Publication Date
EP4209610A1 EP4209610A1 (en) 2023-07-12
EP4209610A4 true EP4209610A4 (en) 2024-01-17

Family

ID=80491289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21806609.0A Pending EP4209610A4 (en) 2020-09-01 2021-06-08 Hot stamping material and production method therefor

Country Status (8)

Country Link
US (1) US20230265538A1 (en)
EP (1) EP4209610A4 (en)
JP (1) JP2023540210A (en)
CN (1) CN114466947B (en)
BR (1) BR112023003717A2 (en)
CA (1) CA3190916A1 (en)
MX (1) MX2023002518A (en)
WO (1) WO2022050536A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2631307A1 (en) * 2010-10-22 2013-08-28 Nippon Steel & Sumitomo Metal Corporation Steel sheet and steel sheet production process
EP2684972A1 (en) * 2011-03-09 2014-01-15 Nippon Steel & Sumitomo Metal Corporation Steel sheets for hot stamping, method for manufacturing same, and method for manufacturing high-strength parts
US20180147614A1 (en) * 2016-11-28 2018-05-31 Ak Steel Properties, Inc. Press hardened steel with increased toughness and method for production
WO2018096387A1 (en) * 2016-11-24 2018-05-31 Arcelormittal Hot-rolled and coated steel sheet for hot-stamping, hot-stamped coated steel part and methods for manufacturing the same
KR20190001226A (en) * 2017-06-27 2019-01-04 현대제철 주식회사 Steel for hot stamping and manufacturing method thoereof
KR102021200B1 (en) * 2017-06-27 2019-09-11 현대제철 주식회사 Hot stamping product and method of manufacturing the same
WO2019186930A1 (en) * 2018-03-29 2019-10-03 日本製鉄株式会社 Hot-stamped formed product

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110075319A (en) * 2009-12-28 2011-07-06 주식회사 포스코 Ultra high strength steel wire rod having high resistance of delayed fracture, and method for manufacturing the same
KR101318060B1 (en) * 2013-05-09 2013-10-15 현대제철 주식회사 Hot stamping product with advanced toughness and method of manufacturing the same
JP6261215B2 (en) 2013-07-12 2018-01-17 キヤノン株式会社 Image encoding device, image encoding method and program, image decoding device, image decoding method and program
KR20170076009A (en) 2015-12-24 2017-07-04 현대제철 주식회사 Hot stamping coating steel sheets and method of manufacturing the same
JP6424967B2 (en) * 2016-05-25 2018-11-21 Ｊｆｅスチール株式会社 Plated steel sheet and method of manufacturing the same
KR102031460B1 (en) * 2017-12-26 2019-10-11 주식회사 포스코 Hot rolled steel with excellent impact toughness, steel tube, steel member, and method for manufacturing thereof
KR102110679B1 (en) * 2018-09-28 2020-05-13 현대제철 주식회사 Hot stamping product and method of manufacturing the same
KR102144194B1 (en) 2018-11-26 2020-08-12 현대제철 주식회사 Method of manufacturing hot stamping parts
US10814620B1 (en) 2019-10-10 2020-10-27 Xerox Corporation System and method for closed loop regulation of ink drop volumes in a printhead
CN111235483A (en) * 2020-03-12 2020-06-05 中国汽车工程研究院股份有限公司 Niobium-vanadium composite microalloyed hot forming steel and production and hot stamping forming method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2631307A1 (en) * 2010-10-22 2013-08-28 Nippon Steel & Sumitomo Metal Corporation Steel sheet and steel sheet production process
EP2684972A1 (en) * 2011-03-09 2014-01-15 Nippon Steel & Sumitomo Metal Corporation Steel sheets for hot stamping, method for manufacturing same, and method for manufacturing high-strength parts
WO2018096387A1 (en) * 2016-11-24 2018-05-31 Arcelormittal Hot-rolled and coated steel sheet for hot-stamping, hot-stamped coated steel part and methods for manufacturing the same
US20180147614A1 (en) * 2016-11-28 2018-05-31 Ak Steel Properties, Inc. Press hardened steel with increased toughness and method for production
KR20190001226A (en) * 2017-06-27 2019-01-04 현대제철 주식회사 Steel for hot stamping and manufacturing method thoereof
KR102021200B1 (en) * 2017-06-27 2019-09-11 현대제철 주식회사 Hot stamping product and method of manufacturing the same
WO2019186930A1 (en) * 2018-03-29 2019-10-03 日本製鉄株式会社 Hot-stamped formed product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022050536A1 *

Also Published As

Publication number Publication date
CA3190916A1 (en) 2022-03-10
EP4209610A1 (en) 2023-07-12
CN114466947B (en) 2023-05-23
MX2023002518A (en) 2023-03-13
CN114466947A (en) 2022-05-10
JP2023540210A (en) 2023-09-22
WO2022050536A1 (en) 2022-03-10
BR112023003717A2 (en) 2023-03-28
US20230265538A1 (en) 2023-08-24

Similar Documents

Publication Publication Date Title
EP3712286A4 (en) Hot press steel sheet member and manufacturing method therefor
EP4116095A4 (en) Decorative sheet and production method for decorative sheet
EP4101640A4 (en) Decorative sheet and method for manufacturing decorative sheet
EP3984665A4 (en) Press and manufacturing method for pressed product
EP3960775A4 (en) Composition production method and composition
EP3789510A4 (en) Thin steel sheet and production method therefor
EP3896417A4 (en) Pressure measuring material and pressure measuring material production method
EP3932641A4 (en) Sheet material pressing device, sheet material pressing method, pressing roller, and method for manufacturing sheet material
EP3835446A4 (en) Steel material and production method therefor
EP4083270A4 (en) Silver-plated material and method for producing same
EP3591080A4 (en) Grain-oriented electrical steel sheet and production method therefor
EP3919198A4 (en) Method for manufacturing pressed component, and method for manufacturing blank material
EP3967784A4 (en) Alloy material and production process therefor
EP3984968A4 (en) Method for producing inorganic material and inorganic material production device
EP4020713A4 (en) Dielectric material and dielectric material production method
KR102372480B9 (en) Tailor rolled blank manufacturing method for hot stamping product using tailor rolled blank and hot stamping product manufactured using the same
EP3981829A4 (en) Thermally conductive sheet and production method therefor
EP3950297A4 (en) Decorative material and method for producing same
EP4039839A4 (en) Zr-nb-based alloy material, method for manufacturing said alloy material, and zr-nb-based alloy product
EP4209610A4 (en) Hot stamping material and production method therefor
EP3778689A4 (en) Polyurethane gel material, polyurethane gel, pseudo-biological material, and production method for polyurethane gel
EP3778690A4 (en) Polyurethane gel material, polyurethane gel, pseudo-biological material, and production method for polyurethane gel
EP4079961A4 (en) Sheet material and method for producing same
EP3546602A4 (en) Method for manufacturing quenched molding, method for producing steel material for hot press, and steel material for hot press
EP4205972A4 (en) Decorative sheet and decorative material using same, and method for producing decorative sheet

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211125

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: C22C0038380000

Ipc: C22C0038040000

A4 Supplementary search report drawn up and despatched

Effective date: 20231214

RIC1 Information provided on ipc code assigned before grant

Ipc: B21B 37/74 20060101ALI20231208BHEP

Ipc: B21B 3/02 20060101ALI20231208BHEP

Ipc: C21D 8/02 20060101ALI20231208BHEP

Ipc: C21D 9/46 20060101ALI20231208BHEP

Ipc: C22C 38/38 20060101ALI20231208BHEP

Ipc: C22C 38/28 20060101ALI20231208BHEP

Ipc: C22C 38/26 20060101ALI20231208BHEP

Ipc: C22C 38/24 20060101ALI20231208BHEP

Ipc: C22C 38/04 20060101AFI20231208BHEP