EP1483417A1 - A method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steel - Google Patents
A method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steelInfo
- Publication number
- EP1483417A1 EP1483417A1 EP03708779A EP03708779A EP1483417A1 EP 1483417 A1 EP1483417 A1 EP 1483417A1 EP 03708779 A EP03708779 A EP 03708779A EP 03708779 A EP03708779 A EP 03708779A EP 1483417 A1 EP1483417 A1 EP 1483417A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- work piece
- yield point
- partially
- final product
- completely
- 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.)
- Granted
Links
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
- 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
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
Definitions
- the present invention relates to a method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steel.
- the object of the present invention is to provide a method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steel, that has initially been alloyed with chromium, nickel and carbon in predetermined proportions.
- the pressure turned sheet metal product manufactured according to the invention is constituted of a work piece of iron, which has been alloyed with chromium, nickel and carbon in predetermined proportions.
- the iron has been alloyed with 17% Cr, 7% Ni and 0,1% C or alloys closely related to these and the temperature of the work piece before and/or during the manufacturing operation has been kept or is kept at a controlled level, wherby a strong but controlled deformation hardening is achieved during the pressure turning when a plastic cold working of the work piece in combination with maintaining a good ductility of the alloy.
- the temperature of the finally formed pressure turned product can be controlled directly after the working operation itself.
- the alloyed metal work piece, that forms the initially work piece according to the invention can be formed or plastically cold worked in traditional machines for pressure turning in order to increase its yield point from an original, low yield point of about 300 MPa to a final product that completely or partially obtains a yield point of more than 700 MPa.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0200662 | 2002-03-05 | ||
SE0200662A SE526117C2 (en) | 2002-03-05 | 2002-03-05 | Process for the manufacture of an ultra high-strength pressure-turned product of steel |
PCT/SE2003/000377 WO2003074742A1 (en) | 2002-03-05 | 2003-03-05 | A method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1483417A1 true EP1483417A1 (en) | 2004-12-08 |
EP1483417B1 EP1483417B1 (en) | 2013-01-16 |
Family
ID=20287167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03708779A Expired - Lifetime EP1483417B1 (en) | 2002-03-05 | 2003-03-05 | A method for manufacturing an ultra-high-tensile pressure turned sheet metal product of steel |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1483417B1 (en) |
AU (1) | AU2003212750A1 (en) |
SE (1) | SE526117C2 (en) |
WO (1) | WO2003074742A1 (en) |
-
2002
- 2002-03-05 SE SE0200662A patent/SE526117C2/en not_active IP Right Cessation
-
2003
- 2003-03-05 AU AU2003212750A patent/AU2003212750A1/en not_active Abandoned
- 2003-03-05 EP EP03708779A patent/EP1483417B1/en not_active Expired - Lifetime
- 2003-03-05 WO PCT/SE2003/000377 patent/WO2003074742A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO03074742A1 * |
Also Published As
Publication number | Publication date |
---|---|
SE526117C2 (en) | 2005-07-05 |
AU2003212750A1 (en) | 2003-09-16 |
SE0200662L (en) | 2003-09-06 |
WO2003074742A1 (en) | 2003-09-12 |
EP1483417B1 (en) | 2013-01-16 |
SE0200662D0 (en) | 2002-03-05 |
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