EP2857531A3 - Flow forming method - Google Patents

Flow forming method Download PDF

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Publication number
EP2857531A3
EP2857531A3 EP20140183234 EP14183234A EP2857531A3 EP 2857531 A3 EP2857531 A3 EP 2857531A3 EP 20140183234 EP20140183234 EP 20140183234 EP 14183234 A EP14183234 A EP 14183234A EP 2857531 A3 EP2857531 A3 EP 2857531A3
Authority
EP
European Patent Office
Prior art keywords
flow forming
forming method
heat treating
forming
subsequent
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
Application number
EP20140183234
Other languages
German (de)
French (fr)
Other versions
EP2857531B1 (en
EP2857531A2 (en
Inventor
Martin Tuffs
John Harold Boswell
George William Whitehurst
Paul Owen Hill
Martin John Rawson
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49553237&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2857531(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of EP2857531A2 publication Critical patent/EP2857531A2/en
Publication of EP2857531A3 publication Critical patent/EP2857531A3/en
Application granted granted Critical
Publication of EP2857531B1 publication Critical patent/EP2857531B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21D8/005—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
    • C21D9/08—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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving
    • 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
    • C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • B21D22/14—Spinning
    • 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
    • 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

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)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A method of forming a shaped article. The method comprises providing a pre-form 40 comprising a chromium molybdenum vanadium steel alloy, heat treating the pre-form to obtain a surface hardness of between 420 and 480 according to the Vickers hardness test, and, subsequent to the heat treating step, flow forming the pre-form 40 to shape the pre-form.
EP14183234.5A 2013-09-23 2014-09-02 Flow forming method Not-in-force EP2857531B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1316829.9A GB201316829D0 (en) 2013-09-23 2013-09-23 Flow Forming method

Publications (3)

Publication Number Publication Date
EP2857531A2 EP2857531A2 (en) 2015-04-08
EP2857531A3 true EP2857531A3 (en) 2015-04-22
EP2857531B1 EP2857531B1 (en) 2017-03-01

Family

ID=49553237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14183234.5A Not-in-force EP2857531B1 (en) 2013-09-23 2014-09-02 Flow forming method

Country Status (3)

Country Link
US (1) US20150083284A1 (en)
EP (1) EP2857531B1 (en)
GB (1) GB201316829D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process
MX2017000077A (en) * 2014-06-27 2017-05-30 Ati Properties Llc Flowforming corrosion resistant alloy tubes and tube manufactured thereby.
CN105543463B (en) * 2015-12-28 2019-12-27 河南北方红阳机电有限公司 Atmosphere protection heat treatment process for ultrahigh-strength D6AC steel thin-wall pipe fitting
US11185905B2 (en) 2018-03-23 2021-11-30 Raytheon Technologies Corporation Systems and methods for improving backward flow forming of shafts
US11737851B2 (en) 2018-06-28 2023-08-29 Cook Medical Technologies Llc Medical devices for magnetic resonance imaging and related methods
DE102020203955A1 (en) 2020-03-26 2021-09-30 Rolls-Royce Deutschland Ltd & Co Kg Combustion Chamber Housing and Manufacturing Process
DE102021109866B3 (en) * 2021-04-20 2022-08-11 Thyssenkrupp Steel Europe Ag Process for manufacturing a pressure vessel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0489140A (en) * 1990-07-31 1992-03-23 Nissan Motor Co Ltd Spinning method
US20100236122A1 (en) * 2006-07-26 2010-09-23 Fonte Matthew V Flowforming Gun Barrels and Similar Tubular Devices

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023389A (en) * 1976-06-16 1977-05-17 Rockwell International Corporation Method of flow forming
JPH03104816A (en) * 1989-07-27 1991-05-01 Sumitomo Metal Ind Ltd Production of soft nitrided steel
DE4323167C1 (en) 1993-07-10 1994-05-19 Leifeld Gmbh & Co Producing steel hollow bodies by rolling - combined with austenitic heat treatment
EP1439240B2 (en) 2001-10-23 2018-10-03 Nippon Steel & Sumitomo Metal Corporation Method for hot-press forming a plated steel product
US7520942B2 (en) 2004-09-22 2009-04-21 Ut-Battelle, Llc Nano-scale nitride-particle-strengthened high-temperature wrought ferritic and martensitic steels
US7601232B2 (en) 2004-10-01 2009-10-13 Dynamic Flowform Corp. α-β titanium alloy tubes and methods of flowforming the same
US20100136369A1 (en) 2008-11-18 2010-06-03 Raghavan Ayer High strength and toughness steel structures by friction stir welding
AR075976A1 (en) 2009-03-30 2011-05-11 Sumitomo Metal Ind METHOD FOR THE MANUFACTURE OF PIPE WITHOUT SEWING
DE102009049398C5 (en) * 2009-10-14 2015-05-07 Benteler Automobiltechnik Gmbh Method for producing a structural component for a motor vehicle and structural component

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0489140A (en) * 1990-07-31 1992-03-23 Nissan Motor Co Ltd Spinning method
US20100236122A1 (en) * 2006-07-26 2010-09-23 Fonte Matthew V Flowforming Gun Barrels and Similar Tubular Devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. JAHAZI, G. EBRAHIMI: "The influence of flow-forming parameters and microstructure on the quality of a D6ac steel", JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, no. 103, 2000, pages 362 - 366, XP055173954 *

Also Published As

Publication number Publication date
GB201316829D0 (en) 2013-11-06
EP2857531B1 (en) 2017-03-01
EP2857531A2 (en) 2015-04-08
US20150083284A1 (en) 2015-03-26

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