IN2008KO01831A - - Google Patents

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Publication number
IN2008KO01831A
IN2008KO01831A IN1831KO2008A IN2008KO01831A IN 2008KO01831 A IN2008KO01831 A IN 2008KO01831A IN 1831KO2008 A IN1831KO2008 A IN 1831KO2008A IN 2008KO01831 A IN2008KO01831 A IN 2008KO01831A
Authority
IN
India
Prior art keywords
billet
axis
along
steps
repeating
Prior art date
Application number
Inventor
Suwas Satyam
Biswas Somjeet
Bhowmik Ayan
Singh D Satyaveer
Bhattacharjee D
K Ray R
Original Assignee
Tata Steel Ltd
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 Tata Steel Ltd filed Critical Tata Steel Ltd
Priority to CN2009801009725A priority Critical patent/CN101889097B/en
Priority to IN1831KO2008 priority patent/IN2008KO01831A/en
Priority to PCT/IN2009/000607 priority patent/WO2010049949A1/en
Publication of IN2008KO01831A publication Critical patent/IN2008KO01831A/en

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/04—Shaping in the rough solely by forging or pressing
    • 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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/03—Amorphous or microcrystalline structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)

Abstract

The invention relates to a method to process Interstitial-free (IF) steels by adapting multi-axial forging (MAF) at room temperature to provide increased strength and ductility by producing ultrafine grain structure within the steel, the method comprising the steps of providing a multi-axial forging apparatus having a base-plate, at least two die-panels, at least one plunger with a plurality of adapters; placing a course grain IF steel billet in between the at least two lubricated die-panels with a first axis of the billet along the axis of the plunger; pressing the billet with the at least one plunger along the first axis to reduce the length of the billet to half-the-original size with a corresponding increase in the smaller sides lying along a second axis; imparting a first rotation to the billet and repeating the steps (b) and (c) along a third axis; imparting a second rotation to the billet and repeating the steps (b) and (c) such that an elongation takes place along the first axis; and repeating the cycle comprising steps (b) to (e) till such time the grain size is reduced by at least three order of magnitude.
IN1831KO2008 2008-10-27 2009-10-27 IN2008KO01831A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2009801009725A CN101889097B (en) 2008-10-27 2009-10-27 A method to process interstitial-free (IF) steels by adapting multi-axial
IN1831KO2008 IN2008KO01831A (en) 2008-10-27 2009-10-27
PCT/IN2009/000607 WO2010049949A1 (en) 2008-10-27 2009-10-27 A method to process interstitial-free (if) steels by adapting multi-axial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN1831KO2008 IN2008KO01831A (en) 2008-10-27 2009-10-27

Publications (1)

Publication Number Publication Date
IN2008KO01831A true IN2008KO01831A (en) 2015-07-24

Family

ID=42128343

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1831KO2008 IN2008KO01831A (en) 2008-10-27 2009-10-27

Country Status (3)

Country Link
CN (1) CN101889097B (en)
IN (1) IN2008KO01831A (en)
WO (1) WO2010049949A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102554085B (en) * 2011-12-30 2015-08-05 中信重工机械股份有限公司 A kind of forging method improving flat side's forging horizontal mechanical performance
JP6108558B2 (en) * 2012-03-27 2017-04-05 日本碍子株式会社 Forging method and die for forging
US20140271336A1 (en) 2013-03-15 2014-09-18 Crs Holdings Inc. Nanostructured Titanium Alloy And Method For Thermomechanically Processing The Same
RU2659558C2 (en) * 2014-02-03 2018-07-02 Анатолий Евгеньевич Волков Method of producing a workpiece with a fine-grained structure and a device for carrying it out
CN105750464B (en) * 2014-12-17 2018-01-23 苏州宝业锻造有限公司 A kind of processing method of three-way connecting block
CN113843387B (en) * 2021-09-26 2022-06-28 中南大学 High-strength heat-resistant magnesium alloy large forging and preparation method thereof
CN114029356B (en) * 2021-11-09 2023-09-29 安徽工程大学 Preparation method of superfine crystal/nanocrystalline layered microstructure stainless steel plate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10216884A (en) * 1997-01-31 1998-08-18 Nippon Steel Corp Method for repeated lateral forging and forming of metallic material
JP4862505B2 (en) * 2006-06-09 2012-01-25 株式会社豊田中央研究所 Forging apparatus and forging method

Also Published As

Publication number Publication date
WO2010049949A1 (en) 2010-05-06
CN101889097B (en) 2013-03-13
CN101889097A (en) 2010-11-17

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