WO2002030585A1 - A method and a device for manufacturing of a closed profile and a profile manufactured according to said method - Google Patents
A method and a device for manufacturing of a closed profile and a profile manufactured according to said method Download PDFInfo
- Publication number
- WO2002030585A1 WO2002030585A1 PCT/SE2001/002005 SE0102005W WO0230585A1 WO 2002030585 A1 WO2002030585 A1 WO 2002030585A1 SE 0102005 W SE0102005 W SE 0102005W WO 0230585 A1 WO0230585 A1 WO 0230585A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- profile
- closed profile
- wall thickness
- forming operation
- closed
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/065—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes starting from a specific blank, e.g. tailored blank
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- 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
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
- C21D7/12—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- 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
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
-
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
Definitions
- a method and a device for manufacturing of a closed profile and a profile manufactured according to said method are described in detail in detail in detail.
- the present invention relates to a method and device for manufacturing a closed profile, for example in the form of a pipe in a profile structure and a closed profile, for example in the form of a pipe, manufactured according to the method.
- the object of the present invention is to provide a method and device for manufacturing a closed profile in a profile structure, for example a pipe that is constituted by iron and alloyed to provide a strong strain hardening during plastic cold forming in combination with maintaining a good ductility of the alloy at the same time as the pipe achieves a yield point of above 1000 MPa as the final product.
- a profile structure for example a pipe that is constituted by iron and alloyed to provide a strong strain hardening during plastic cold forming in combination with maintaining a good ductility of the alloy at the same time as the pipe achieves a yield point of above 1000 MPa as the final product.
- Another object of the invention is that the closed profile is manufactured according to a method through hydroforming and/or mechanical treatment of the same, to provide a strategically varying wall thickness axially and/or in the cross-section of the profile.
- a method and device for manufacturing a closed profile in a profile structure and a closed profile manufactured according to the method have now been provided that in an excellent manner fulfil their purposes at the same time as the manufacture can take place very rationally and at low cost.
- the profile which is manufactured according to the invention, with varying wall thickness and/or diameter the weight of the profile can be reduced to more than half the weight of profiles in previously known construction solutions. Examples of such solutions may be different girders and frame structures in cars and other means of conveyance and also other components where closed profiles, for example in the form of pipes, may be incorporated.
- the closed profile is constituted for example in the form of a pipe that is manufactured from a metal material of iron, which is alloyed with chromium, nickel and carbon in predetermined proportions.
- the iron is alloyed with 17% chromium, 7% nickel and 0,1% carbon or closely related alloys, wherein a strong strain hardening is obtained when plastically cold forming the profile in combination with maintaining a good ductility of the alloy.
- the alloyed metal material forming the profile is for example formed through hydroforming and/or through ballooning preferably by means of a mandrel with a cylindrical or other shape or through shrinking or elongation, preferably through elongation with or without a matrix, in order to increase the yield point of the metal material 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 about 1000 MPa.
- a closed profile in which a closed profile is manufactured with varying diameter
- the pipe is expanded along half its length to a diameter of 60 mm, wherein the wall thickness of the pipe is decreased to about 1.5 mm along said half of the pipe and the yield point of the pipe can be increased to 1000 MPa or more at the same time as the other half of the pipe is left untreated.
- the wall thickness and/or the circumference of the final closed profile may also be varied axially by applying two or more profiles partially into each other with the short profile external on the longer profile.
- the wall thickness and/or the circumference may be varied further after the forming of the closed profile by using welding to join so called starting profiles with walls of different thickness and/or with different diameters.
- the wall thickness may be varied in the same cross-section, so that the material will be strategically placed just over the areas where an expected maximum strain may take place.
- As starting material for the closed profile according to the invention a metal material of the above-mentioned alloy having low strength is used.
- the profile described in the application intended to be incorporated in a current profile structure may be constituted by any closed profile design intended to be incorporated in the current profile structure.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60116885T DE60116885T2 (en) | 2000-10-10 | 2001-09-19 | METHOD FOR PRODUCING A CLOSED PROFILE |
US10/398,555 US20040031309A1 (en) | 2000-10-10 | 2001-09-19 | Method and a device for manufacturing of a closed profile and a profile manufactured according to said method |
EP01967907A EP1379341B8 (en) | 2000-10-10 | 2001-09-19 | Method of manufacturing a closed profile |
AU2001288189A AU2001288189A1 (en) | 2000-10-10 | 2001-09-19 | A method and a device for manufacturing of a closed profile and a profile manufactured according to said method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0003655A SE0003655D0 (en) | 2000-10-10 | 2000-10-10 | Method and apparatus for manufacturing a single tube structure comprising tubes and a tube manufactured in accordance with the method |
SE0003655-8 | 2000-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002030585A1 true WO2002030585A1 (en) | 2002-04-18 |
Family
ID=20281361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2001/002005 WO2002030585A1 (en) | 2000-10-10 | 2001-09-19 | A method and a device for manufacturing of a closed profile and a profile manufactured according to said method |
Country Status (8)
Country | Link |
---|---|
US (1) | US20040031309A1 (en) |
EP (1) | EP1379341B8 (en) |
AT (1) | ATE316428T1 (en) |
AU (1) | AU2001288189A1 (en) |
DE (1) | DE60116885T2 (en) |
ES (1) | ES2257439T3 (en) |
SE (1) | SE0003655D0 (en) |
WO (1) | WO2002030585A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003082655A1 (en) * | 2002-03-30 | 2003-10-09 | Bayerische Motoren Werke Aktiengesellschaft | Crossbeam between two lateral edge zones of a vehicle structure |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2020001313A (en) * | 2017-08-01 | 2020-03-20 | Ak Steel Properties Inc | Manufacturing ultra-high strength load bearing parts using high strength/low initial yield steels through tubular hydroforming process. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1566582A (en) * | 1976-10-29 | 1980-05-08 | Tubes Cie Indle Cale | Method of manufacturing tubular members diameters and thicknesses wich are not constant troughout their length |
US4649728A (en) * | 1985-04-23 | 1987-03-17 | The Babcock & Wilcox Company | Integral joint forming of work-hardenable high alloy tubing |
EP0620056A1 (en) * | 1993-04-16 | 1994-10-19 | General Motors Corporation | A method of forming a tubular structural member |
US5522246A (en) * | 1995-04-19 | 1996-06-04 | U.S. Manufacturing Corporation | Process for forming light-weight tublar axles |
DE19510299A1 (en) * | 1995-03-22 | 1996-09-26 | Porsche Ag | Frame for motor vehicles |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2762326A (en) * | 1954-12-28 | 1956-09-11 | Keystone Brass Works Inc | Method for forming t-fitting |
US3093519A (en) * | 1961-01-03 | 1963-06-11 | Int Nickel Co | Age-hardenable, martensitic iron-base alloys |
JPS5669359A (en) * | 1979-10-16 | 1981-06-10 | Kobe Steel Ltd | Composite structure type high strength cold rolled steel sheet |
US4567743A (en) * | 1985-03-19 | 1986-02-04 | Standard Tube Canada Inc. | Method of forming box-section frame members |
DE69003202T2 (en) * | 1989-07-31 | 1994-03-31 | Mitsubishi Heavy Ind Ltd | High-strength, heat-resistant, low-alloy steels. |
US5481892A (en) * | 1989-08-24 | 1996-01-09 | Roper; Ralph E. | Apparatus and method for forming a tubular member |
EP0924312B1 (en) * | 1997-06-26 | 2005-12-07 | JFE Steel Corporation | Method for manufacturing super fine granular steel pipe |
US6484384B1 (en) * | 1998-12-31 | 2002-11-26 | Spicer Driveshaft, Inc. | Method of manufacturing an axially collapsible driveshaft assembly |
US6609301B1 (en) * | 1999-09-08 | 2003-08-26 | Magna International Inc. | Reinforced hydroformed members and methods of making the same |
-
2000
- 2000-10-10 SE SE0003655A patent/SE0003655D0/en unknown
-
2001
- 2001-09-19 AU AU2001288189A patent/AU2001288189A1/en not_active Abandoned
- 2001-09-19 EP EP01967907A patent/EP1379341B8/en not_active Expired - Lifetime
- 2001-09-19 US US10/398,555 patent/US20040031309A1/en not_active Abandoned
- 2001-09-19 WO PCT/SE2001/002005 patent/WO2002030585A1/en active IP Right Grant
- 2001-09-19 DE DE60116885T patent/DE60116885T2/en not_active Expired - Lifetime
- 2001-09-19 ES ES01967907T patent/ES2257439T3/en not_active Expired - Lifetime
- 2001-09-19 AT AT01967907T patent/ATE316428T1/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1566582A (en) * | 1976-10-29 | 1980-05-08 | Tubes Cie Indle Cale | Method of manufacturing tubular members diameters and thicknesses wich are not constant troughout their length |
US4649728A (en) * | 1985-04-23 | 1987-03-17 | The Babcock & Wilcox Company | Integral joint forming of work-hardenable high alloy tubing |
EP0620056A1 (en) * | 1993-04-16 | 1994-10-19 | General Motors Corporation | A method of forming a tubular structural member |
DE19510299A1 (en) * | 1995-03-22 | 1996-09-26 | Porsche Ag | Frame for motor vehicles |
US5522246A (en) * | 1995-04-19 | 1996-06-04 | U.S. Manufacturing Corporation | Process for forming light-weight tublar axles |
Non-Patent Citations (1)
Title |
---|
WEGST C.W.: "18.volstaendig neu bearbeitete und erweiterte Auflage 1998", STAHLSCHLUESSEL, 1998, pages 433, XP002974555 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003082655A1 (en) * | 2002-03-30 | 2003-10-09 | Bayerische Motoren Werke Aktiengesellschaft | Crossbeam between two lateral edge zones of a vehicle structure |
EP1772354A3 (en) * | 2002-03-30 | 2007-05-02 | Bayerische Motoren Werke Aktiengesellschaft | Crossbeam between two sides of a vehicle structure |
Also Published As
Publication number | Publication date |
---|---|
US20040031309A1 (en) | 2004-02-19 |
EP1379341A1 (en) | 2004-01-14 |
ATE316428T1 (en) | 2006-02-15 |
DE60116885D1 (en) | 2006-04-13 |
ES2257439T3 (en) | 2006-08-01 |
AU2001288189A1 (en) | 2002-04-22 |
EP1379341B8 (en) | 2006-05-03 |
EP1379341B1 (en) | 2006-01-25 |
DE60116885T2 (en) | 2006-09-14 |
SE0003655D0 (en) | 2000-10-10 |
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