ATE535631T1 - METHOD FOR PRODUCING A STEEL COMPONENT BY HOT FORMING AND STEEL COMPONENT PRODUCED BY HOT FORMING - Google Patents
METHOD FOR PRODUCING A STEEL COMPONENT BY HOT FORMING AND STEEL COMPONENT PRODUCED BY HOT FORMINGInfo
- Publication number
- ATE535631T1 ATE535631T1 AT07117719T AT07117719T ATE535631T1 AT E535631 T1 ATE535631 T1 AT E535631T1 AT 07117719 T AT07117719 T AT 07117719T AT 07117719 T AT07117719 T AT 07117719T AT E535631 T1 ATE535631 T1 AT E535631T1
- Authority
- AT
- Austria
- Prior art keywords
- steel
- aluminum
- coating
- coated
- zinc
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 12
- 229910052725 zinc Inorganic materials 0.000 abstract 10
- 239000011701 zinc Substances 0.000 abstract 10
- 238000000576 coating method Methods 0.000 abstract 9
- 229910000831 Steel Inorganic materials 0.000 abstract 8
- 239000011248 coating agent Substances 0.000 abstract 8
- 229910052710 silicon Inorganic materials 0.000 abstract 8
- 239000010959 steel Substances 0.000 abstract 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 6
- 229910052742 iron Inorganic materials 0.000 abstract 5
- 238000010438 heat treatment Methods 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910000712 Boron steel Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 238000005275 alloying Methods 0.000 abstract 1
- 238000010923 batch production Methods 0.000 abstract 1
- PALQHNLJJQMCIQ-UHFFFAOYSA-N boron;manganese Chemical compound [Mn]#B PALQHNLJJQMCIQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005240 physical vapour deposition Methods 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
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
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
-
- 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
- C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface 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
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
-
- 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
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Coating With Molten Metal (AREA)
- Physical Vapour Deposition (AREA)
Abstract
A low-alloy, sheet steel which can be hardened, is coated with metal containing at least 85 wt% aluminum and up to 15 wt% Si. A zinc coating is then added, containing at least 90 wt% Zn. The material is heated to at least 750[deg] C prior to thermal deformation. The flat product is then thermo-formed to make the steel component. To produce the hardened structure, it is cooled at a sufficiently rapid rate. The hot deformation temperature is preferably 850-900[deg] C. The aluminum coating is added by hot dip aluminization. It contains 5-12 wt% silicon. The zinc is coated onto the aluminum layer electrolytically. It contains at least 99 wt% Zn. It is alternatively coated by physical vapor deposition. In the zinc coating, one or more of Al, Mg and Si are contained. Before zinc coating, the aluminum-coated steel is given a rolled finish. It is pickled before zinc coating. Both coatings take pace continuously, in successive processes. Alternatively, successive batch processes are used. Hot deformation takes place in one or more stages. This is optionally preceded by cold deformation. Before heating, the aluminum coating has a thickness of 5-25 mu m. Before heating, a 2-5 mu m thick alloying boundary layer containing Al, Si and Fe is provided between the steel and the aluminum. The total thickness of the coating on the steel before heating, is 7-35 mu m. The base layer coating on the steel is predominantly aluminum, containing Fe, Zn and Si. This is coated with a layer of metal predominantly comprising zinc, which contains Al, Si and Fe. The base layer contains at least: 30 wt% Al, 20 wt% Fe and 3 wt% Si. The outer covering layer contains at least: 60 wt% Zn, 5 wt% Al. It also includes up to: 10 wt% Fe and 10 wt% Si. The base layer thickness is 15-25 mu m. The covering layer thickness is 3-10 mu m. The sheet steel product is produced from manganese-boron steel. An independent claim IS INCLUDED FOR the corresponding steel component.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07117719A EP2045360B1 (en) | 2007-10-02 | 2007-10-02 | Method for manufacturing a steel part by hot forming and steel part manufactured by hot forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE535631T1 true ATE535631T1 (en) | 2011-12-15 |
Family
ID=39469453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT07117719T ATE535631T1 (en) | 2007-10-02 | 2007-10-02 | METHOD FOR PRODUCING A STEEL COMPONENT BY HOT FORMING AND STEEL COMPONENT PRODUCED BY HOT FORMING |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100294400A1 (en) |
| EP (1) | EP2045360B1 (en) |
| AT (1) | ATE535631T1 (en) |
| WO (1) | WO2009047183A1 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009015160A1 (en) | 2009-03-26 | 2010-09-30 | Bayerische Motoren Werke Aktiengesellschaft | Process for producing a coated and / or available sheet metal part with a corrosion protection coating |
| DE102009051673B3 (en) * | 2009-11-03 | 2011-04-14 | Voestalpine Stahl Gmbh | Production of galvannealed sheets by heat treatment of electrolytically finished sheets |
| ES2345029B1 (en) * | 2010-04-19 | 2011-07-18 | Autotech Engineering, Aie | STRUCTURAL COMPONENT OF A VEHICLE AND MANUFACTURING PROCEDURE. |
| DE102011051458B3 (en) * | 2011-06-30 | 2012-07-05 | Benteler Automobiltechnik Gmbh | Preparing press-hardened form conservations e.g. body or structure conservations of motor cars, comprises heating a blank in a liquid bath, and press-hardening the blank in a pressing tool for forming a hot-formed mold component |
| US9677145B2 (en) | 2011-08-12 | 2017-06-13 | GM Global Technology Operations LLC | Pre-diffused Al—Si coatings for use in rapid induction heating of press-hardened steel |
| JP6113539B2 (en) * | 2013-03-18 | 2017-04-12 | 日新製鋼株式会社 | Manufacturing method of plated steel sheet |
| EP2848709B1 (en) | 2013-09-13 | 2020-03-04 | ThyssenKrupp Steel Europe AG | Method for producing a steel component with an anti-corrosive metal coating and steel component |
| DE102014004657A1 (en) * | 2014-03-29 | 2015-10-01 | Daimler Ag | Component, in particular structural component, for a motor vehicle, and method for producing a component |
| EP2993248B1 (en) * | 2014-09-05 | 2020-06-24 | ThyssenKrupp Steel Europe AG | Flat steel product with an Al coating, method for producing the same, and method for producing a hot-formed steel component |
| WO2016132165A1 (en) * | 2015-02-19 | 2016-08-25 | Arcelormittal | Method of producing a phosphatable part from a sheet coated with an aluminium-based coating and a zinc coating |
| RU2729674C1 (en) * | 2017-02-21 | 2020-08-11 | Зальцгиттер Флахшталь Гмбх | Method of applying coating on steel sheet or steel strip and method of making press-hardened parts therefrom |
| DE102017208727A1 (en) | 2017-05-23 | 2018-11-29 | Thyssenkrupp Ag | Improvement of cold forming suitability of aluminum based coating by alloying of alkaline earth metals |
| WO2020048601A1 (en) * | 2018-09-06 | 2020-03-12 | Thyssenkrupp Steel Europe Ag | Galvanised cold-rolled sheet having improved tribological properties i |
| WO2020048602A1 (en) * | 2018-09-06 | 2020-03-12 | Thyssenkrupp Steel Europe Ag | Galvanised cold-rolled sheet having improved tribological properties ii |
| DE102018222063A1 (en) * | 2018-12-18 | 2020-06-18 | Volkswagen Aktiengesellschaft | Steel substrate for the production of a hot-formed and press-hardened sheet steel component as well as a hot-forming process |
| KR20210070681A (en) * | 2019-12-05 | 2021-06-15 | 주식회사 포스코 | Steel sheet plated with al alloy and manufacturing method thereof |
| CN115261714A (en) * | 2021-04-29 | 2022-11-01 | 宝山钢铁股份有限公司 | Steel for pressure container and preparation method thereof |
| CN118510929A (en) * | 2022-01-06 | 2024-08-16 | 日本制铁株式会社 | Steel sheet for hot stamping, method for producing steel sheet for hot stamping, and hot stamped article |
| KR20240117109A (en) * | 2022-01-06 | 2024-07-31 | 닛폰세이테츠 가부시키가이샤 | Steel sheet for hot stamping, method for manufacturing steel sheet for hot stamping, and hot stamping molded body |
| WO2023202765A1 (en) | 2022-04-20 | 2023-10-26 | Thyssenkrupp Steel Europe Ag | Flat steel product having an al coating, method for the production thereof, steel component, and method for production thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57200548A (en) * | 1981-06-04 | 1982-12-08 | Mitsubishi Heavy Ind Ltd | Surface treated steel material |
| FR2780984B1 (en) * | 1998-07-09 | 2001-06-22 | Lorraine Laminage | COATED HOT AND COLD STEEL SHEET HAVING VERY HIGH RESISTANCE AFTER HEAT TREATMENT |
| FR2787735B1 (en) * | 1998-12-24 | 2001-02-02 | Lorraine Laminage | PROCESS FOR PRODUCING A WORKPIECE FROM A STRIP OF ROLLED STEEL SHEET AND ESPECIALLY HOT ROLLED |
| FR2807447B1 (en) * | 2000-04-07 | 2002-10-11 | Usinor | METHOD FOR MAKING A PART WITH VERY HIGH MECHANICAL CHARACTERISTICS, SHAPED BY STAMPING, FROM A STRIP OF LAMINATED AND IN PARTICULAR HOT ROLLED AND COATED STEEL SHEET |
| DE10146791A1 (en) * | 2001-09-20 | 2003-04-10 | Sms Demag Ag | Method and device for coating the surface of strand-like metallic material |
| DE10246614A1 (en) * | 2002-10-07 | 2004-04-15 | Benteler Automobiltechnik Gmbh | Method of making vehicle component with metallic coating from steel sheet or strip, involves coating metal from non-aqueous organic solution before cold forming, hot forming and hardening |
| DE10333166A1 (en) * | 2003-07-22 | 2005-02-10 | Daimlerchrysler Ag | Press-hardened component and method for producing a press-hardened component |
| JP4510488B2 (en) * | 2004-03-11 | 2010-07-21 | 新日本製鐵株式会社 | Hot-dip galvanized composite high-strength steel sheet excellent in formability and hole expansibility and method for producing the same |
| DE102004052482A1 (en) * | 2004-10-28 | 2006-05-11 | Thyssenkrupp Steel Ag | Method for producing a corrosion-protected steel sheet |
| DE102005045780A1 (en) * | 2005-09-23 | 2007-04-12 | Thyssenkrupp Steel Ag | Method for producing a corrosion-protected flat steel product |
-
2007
- 2007-10-02 AT AT07117719T patent/ATE535631T1/en active
- 2007-10-02 EP EP07117719A patent/EP2045360B1/en not_active Revoked
-
2008
- 2008-10-01 WO PCT/EP2008/063139 patent/WO2009047183A1/en active Application Filing
- 2008-10-01 US US12/681,286 patent/US20100294400A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP2045360B1 (en) | 2011-11-30 |
| US20100294400A1 (en) | 2010-11-25 |
| EP2045360A1 (en) | 2009-04-08 |
| WO2009047183A1 (en) | 2009-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE535631T1 (en) | METHOD FOR PRODUCING A STEEL COMPONENT BY HOT FORMING AND STEEL COMPONENT PRODUCED BY HOT FORMING | |
| US12104255B2 (en) | Phosphatable part starting from a steel sheet coated with a metallic coating based on aluminum | |
| JP5666313B2 (en) | Method for producing component from steel material with Al-Si coating and intermediate steel material by the method | |
| KR850000391B1 (en) | Method of improving the ductility of the coating of an aluminum-zinc alloy coated ferrous product | |
| ES2792117T3 (en) | Procedure to produce a part from a steel sheet coated with an aluminum-based metallic coating | |
| ES2790077T3 (en) | A pressure hardening procedure | |
| AU2009212109B2 (en) | Metal-coated steel strip | |
| CA2956539C (en) | Method for producing a coated steel sheet having improved strength, ductility and formability | |
| CA2533327A1 (en) | Method for producing a hardened steel part | |
| JP2018529842A5 (en) | ||
| MX2011008114A (en) | Fabrication process of coated stamped parts and parts prepared from the same. | |
| US20120279868A1 (en) | Manufacturing galvannealed sheets by heat-treating electrolytically finished sheets | |
| MY157318A (en) | Cold-rolled steel sheet with excellent aging property and bake hardening and method for manufacturing the same | |
| KR102189424B1 (en) | Press forming-parts made of hardened aluminum-based coated steel and methods for producing such parts | |
| CA2605487A1 (en) | A method for hot-dip galvanizing | |
| ATE513938T1 (en) | COATING METHOD OF A METAL STRIP AND SYSTEM FOR CARRYING OUT THIS METHOD | |
| KR20170007355A (en) | Method for producing a steel component which is shaped by hot-forming a steel sheet which has a metal coating, such a steel sheet, and a steel component produced from said steel sheet by means of a hot-forming process | |
| JP4889212B2 (en) | High-strength galvannealed steel sheet and method for producing the same | |
| JP2003181549A (en) | Hot pressing method for high strength automobile member using aluminum plated steel sheet | |
| JP2020532655A5 (en) | ||
| JP2002249862A (en) | Surface treated steel sheet having excellent workability nd corrosion resistance in worked part, and production method therefor | |
| JP5484158B2 (en) | Manufacturing method of embossed building materials | |
| JPS5896821A (en) | Production of painted steel plate having strain aging hardness | |
| JPH02194158A (en) | Alloyed hot-dip galvanized steel sheet and its production | |
| JP2023500650A (en) | Press hardening method |