SE532160C2 - Ways to mold and harden a sheet metal - Google Patents

Ways to mold and harden a sheet metal

Info

Publication number
SE532160C2
SE532160C2 SE0800566A SE0800566A SE532160C2 SE 532160 C2 SE532160 C2 SE 532160C2 SE 0800566 A SE0800566 A SE 0800566A SE 0800566 A SE0800566 A SE 0800566A SE 532160 C2 SE532160 C2 SE 532160C2
Authority
SE
Sweden
Prior art keywords
blank
product
sheet metal
harden
mold
Prior art date
Application number
SE0800566A
Other languages
Swedish (sv)
Other versions
SE0800566L (en
Inventor
Katarina Lindstroem
Daniel Berglund
Paul Aakerstroem
Original Assignee
Gestamp Hardtech Ab
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 Gestamp Hardtech Ab filed Critical Gestamp Hardtech Ab
Priority to SE0800566A priority Critical patent/SE532160C2/en
Priority to PCT/SE2009/000122 priority patent/WO2009113938A1/en
Publication of SE0800566L publication Critical patent/SE0800566L/en
Publication of SE532160C2 publication Critical patent/SE532160C2/en

Links

Classifications

    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment 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
    • 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
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • 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

Description

532 750 2 Det har överraskande visat sig att man får en större duktilitet i de ohärdade partierna när man använder rekristalliseringsglödgat ingångsmaterial trots att man i presshärdningsprocessen vänner hela ämnet till austenitiseringstemperatur. Uppfinningen definieras av patentkraven. 532 750 2 It has surprisingly been found that greater ductility is obtained in the uncured portions when using recrystallization annealed starting material despite the fact that in the press hardening process the whole substance is used at austenitization temperature. The invention is claimed by the claims.

Claims (1)

1. 532 *lEß Patentkrav1. 532 * lEß patent claim 1. Sätt att forma och härda ett plåtämne av kallvalsad stålplåt till en produkt genom att värma ett ämne till austenitiseringstemperatur och sedan varmforma ämnet i ett kylt verktygspar och hårda den formade produkten medan den ligger kvar i verktygsparet, varvid snabbkylning av en del av produkten hindras så att denna del inte tar härdning i lika hög grad som övriga produkten eller inte tar härdning alls, kännetecknar! av att man använder ett ämne av kallvalsad och rekristalliseringsglödgad plåt. Sätt enligt patentkrav l, kännetecknat av att snabbkylningen hindras genom att man har spalter mellan verktygsparet och plåten.A method of forming and curing a cold rolled steel sheet blank into a product by heating a blank to austenitizing temperature and then thermoforming the blank into a chilled tool pair and hardening the shaped product while remaining in the tool pair, thereby preventing rapid cooling of a portion of the product. so that this part does not take curing to the same degree as the rest of the product or does not take curing at all, characteristics! by using a blank of cold-rolled and recrystallization annealed sheet metal. A method according to claim 1, characterized in that the rapid cooling is prevented by having gaps between the tool pair and the plate.
SE0800566A 2008-03-12 2008-03-12 Ways to mold and harden a sheet metal SE532160C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0800566A SE532160C2 (en) 2008-03-12 2008-03-12 Ways to mold and harden a sheet metal
PCT/SE2009/000122 WO2009113938A1 (en) 2008-03-12 2009-03-05 A method of shaping and hardening a sheet steel blank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0800566A SE532160C2 (en) 2008-03-12 2008-03-12 Ways to mold and harden a sheet metal

Publications (2)

Publication Number Publication Date
SE0800566L SE0800566L (en) 2009-09-13
SE532160C2 true SE532160C2 (en) 2009-11-03

Family

ID=41065465

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0800566A SE532160C2 (en) 2008-03-12 2008-03-12 Ways to mold and harden a sheet metal

Country Status (2)

Country Link
SE (1) SE532160C2 (en)
WO (1) WO2009113938A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT2497840T (en) 2011-03-10 2017-08-08 Schwartz Gmbh Oven system and process for partially heating steel blanks
DE102017202294B4 (en) * 2017-02-14 2019-01-24 Volkswagen Aktiengesellschaft Process for producing a hot-formed and press-hardened sheet steel component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4325277B2 (en) * 2003-05-28 2009-09-02 住友金属工業株式会社 Hot forming method and hot forming parts
DE102004007071B4 (en) * 2004-02-13 2006-01-05 Audi Ag Method for producing a component by forming a circuit board and apparatus for carrying out the method
SE528130C2 (en) * 2004-10-04 2006-09-12 Gestamp Hardtech Ab Ways to heat mold and harden a sheet metal

Also Published As

Publication number Publication date
WO2009113938A1 (en) 2009-09-17
SE0800566L (en) 2009-09-13

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Legal Events

Date Code Title Description
NUG Patent has lapsed