WO2013164847A3 - A method to reduce end defects in rolling of sections - Google Patents

A method to reduce end defects in rolling of sections Download PDF

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Publication number
WO2013164847A3
WO2013164847A3 PCT/IN2013/000180 IN2013000180W WO2013164847A3 WO 2013164847 A3 WO2013164847 A3 WO 2013164847A3 IN 2013000180 W IN2013000180 W IN 2013000180W WO 2013164847 A3 WO2013164847 A3 WO 2013164847A3
Authority
WO
WIPO (PCT)
Prior art keywords
bloom
end shapes
input
rolling
finite element
Prior art date
Application number
PCT/IN2013/000180
Other languages
French (fr)
Other versions
WO2013164847A2 (en
Inventor
N. Mahadik K.
P. Date P.
Shashikant Nalawade Rahul
Satish K Cheekatla V.
Original Assignee
Indian Institute Of Technology Bombay
Bharat Forge Limited
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 Indian Institute Of Technology Bombay, Bharat Forge Limited filed Critical Indian Institute Of Technology Bombay
Publication of WO2013164847A2 publication Critical patent/WO2013164847A2/en
Publication of WO2013164847A3 publication Critical patent/WO2013164847A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/20—End shape; fish tail; tongue

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

The present invention aims at reducing the cropping losses formed during reversible multi pass hot rolling of flat ended bloom into bars by designing the preform end shapes using finite element analysis and a method to provide the designed preform end shapes to the input blooms. A three dimensional simulation of the reversible multi pass hot rolling process with flat ended input bloom predicts the formation of defective end shapes after rolling and reverse material tracking is applied to finite element simulations to obtain desired preform end shapes of the input bloom and similar simulations on the bloom with preformed end shape shows considerable reduction in cropping losses.
PCT/IN2013/000180 2012-03-19 2013-03-19 A method to reduce end defects in rolling of sections WO2013164847A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN712/MUM/2012 2012-03-19
IN712MU2012 2012-03-19

Publications (2)

Publication Number Publication Date
WO2013164847A2 WO2013164847A2 (en) 2013-11-07
WO2013164847A3 true WO2013164847A3 (en) 2014-04-10

Family

ID=49514981

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2013/000180 WO2013164847A2 (en) 2012-03-19 2013-03-19 A method to reduce end defects in rolling of sections

Country Status (1)

Country Link
WO (1) WO2013164847A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110532729B (en) * 2019-09-10 2023-02-21 浙江申吉钛业股份有限公司 Titanium alloy blank non-shrinkage-hole rolling method for three-high mill device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344309A (en) * 1978-10-20 1982-08-17 Kawasaki Steel Corporation Process for preventing growth of fishtails during slabbing
US4538546A (en) * 1982-11-30 1985-09-03 Intero-Stahl - Und Maschinenbau Schmitz Gmbh & Co. Kg Characters to a hot steel body
US6453712B1 (en) * 2000-06-07 2002-09-24 Alcoa Inc. Method for reducing crop losses during ingot rolling
US6722174B1 (en) * 1999-03-10 2004-04-20 Nkk Corporation Device and method for manufacturing hot-rolled sheet steel and device and method for sheet thickness pressing used for the device and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344309A (en) * 1978-10-20 1982-08-17 Kawasaki Steel Corporation Process for preventing growth of fishtails during slabbing
US4538546A (en) * 1982-11-30 1985-09-03 Intero-Stahl - Und Maschinenbau Schmitz Gmbh & Co. Kg Characters to a hot steel body
US6722174B1 (en) * 1999-03-10 2004-04-20 Nkk Corporation Device and method for manufacturing hot-rolled sheet steel and device and method for sheet thickness pressing used for the device and method
US6453712B1 (en) * 2000-06-07 2002-09-24 Alcoa Inc. Method for reducing crop losses during ingot rolling

Also Published As

Publication number Publication date
WO2013164847A2 (en) 2013-11-07

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