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Mechanics of cold rolling of thin strip

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Abstract


  • Cold rolled thin strip has a wide application in electronic and instrument industries, and its

    production has always been of major interest to the manufacturers and researchers in the

    area of metal plasticity. Thin strip rolling involves significant metal plasticity to produce a

    desired product. Iwamoto (2004), Stoughton & Yoon (2004) and Hub et al. (2004) were

    interested in dealing with the plastic defonnation and plastic yielding of steel, and its micromechanics.

    With the need for higher quality and productivity in cold strip mill,

    mathematical models of cold rolling of a strip with a desired shape and dimension, both for

    mill set-up and for on-line control, have become a key issue in the steel rolling process. One

    major part of these models concerns the strip and roll def0:mation, plastically. ~efor~ed

    strip shape and profile. The development of the roll deformation model can be diVided mto

    three groups, which includes simple beam model, slit beam model and finit~ element

    analysis model (Ginzburg, 1989). Stone & Gray (1965) modelled the roll deformation as the

    deflection of a simple beam on an elastic foundation. Shohet & Townsend (1968) proposed a

    slit beam deflection model, and then Edwards & Spooner (1973), Wang (1986) improved this

    theory and introduced a matrix method to solve the beam deflection considering strip

    plastic deformation. It has now been widely used in analysiS of the roll deformation an~

    strip shape and profile. Timoshenko & Goodier (1970), Jiang et al. (2oo3a, b, c), Koman

    (1998) and Lin & Lee (1997) used finite elem.ent model and numerical methods to analyse

    the strip rolling and to improve the simulation accuracy of the strip shape and profile. In

    order to improve the quality of the produced products, Kim & Oh (2003) used finite element

    method to analyse grain~by-grain deformation by crystal plasticity with couple stress, Simth

    et al. (2003) conducted a study of the effect of the transverse normal stress on sheet metal

    formability and Ho et al. (2004) developed integrated numerical techniques to predict

    springback in creep forming thick aluminum sheet components. Buchheit et a!. (2005)

    performed simulations of realistic looking 3-.0 polycrystalline microstructures generated.

    The simulation on precipitate induced hardening in crystal plasticity was conducted (Han et

    aI., 2004). Martin & Smith (2005) investigated the influence of the compressive throughthickness

    normal stress on sheet metal formability and tried to explore the ways to improve

    the sheet metal formability. However, the finite element analysis is rather complicated and

    may have a convergence problem, which is difficult to be used for on-line control of the thin

    strip rolling. An influence function method analysis considering the strip plastic

    deformation and roll deformation can be directly used in the control of strip rolling,

    especially in the control of the shape and profile of strip.

Publication Date


  • 2011

Citation


  • Jiang, Z. (2011). Mechanics of cold rolling of thin strip. In J. Awrejcewicz (Eds.), Numerical Analysis Theory and Application (pp. 439-462). Croatia: InTech.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1244&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/239

Book Title


  • Numerical Analysis Theory and Application

Start Page


  • 439

End Page


  • 462

Abstract


  • Cold rolled thin strip has a wide application in electronic and instrument industries, and its

    production has always been of major interest to the manufacturers and researchers in the

    area of metal plasticity. Thin strip rolling involves significant metal plasticity to produce a

    desired product. Iwamoto (2004), Stoughton & Yoon (2004) and Hub et al. (2004) were

    interested in dealing with the plastic defonnation and plastic yielding of steel, and its micromechanics.

    With the need for higher quality and productivity in cold strip mill,

    mathematical models of cold rolling of a strip with a desired shape and dimension, both for

    mill set-up and for on-line control, have become a key issue in the steel rolling process. One

    major part of these models concerns the strip and roll def0:mation, plastically. ~efor~ed

    strip shape and profile. The development of the roll deformation model can be diVided mto

    three groups, which includes simple beam model, slit beam model and finit~ element

    analysis model (Ginzburg, 1989). Stone & Gray (1965) modelled the roll deformation as the

    deflection of a simple beam on an elastic foundation. Shohet & Townsend (1968) proposed a

    slit beam deflection model, and then Edwards & Spooner (1973), Wang (1986) improved this

    theory and introduced a matrix method to solve the beam deflection considering strip

    plastic deformation. It has now been widely used in analysiS of the roll deformation an~

    strip shape and profile. Timoshenko & Goodier (1970), Jiang et al. (2oo3a, b, c), Koman

    (1998) and Lin & Lee (1997) used finite elem.ent model and numerical methods to analyse

    the strip rolling and to improve the simulation accuracy of the strip shape and profile. In

    order to improve the quality of the produced products, Kim & Oh (2003) used finite element

    method to analyse grain~by-grain deformation by crystal plasticity with couple stress, Simth

    et al. (2003) conducted a study of the effect of the transverse normal stress on sheet metal

    formability and Ho et al. (2004) developed integrated numerical techniques to predict

    springback in creep forming thick aluminum sheet components. Buchheit et a!. (2005)

    performed simulations of realistic looking 3-.0 polycrystalline microstructures generated.

    The simulation on precipitate induced hardening in crystal plasticity was conducted (Han et

    aI., 2004). Martin & Smith (2005) investigated the influence of the compressive throughthickness

    normal stress on sheet metal formability and tried to explore the ways to improve

    the sheet metal formability. However, the finite element analysis is rather complicated and

    may have a convergence problem, which is difficult to be used for on-line control of the thin

    strip rolling. An influence function method analysis considering the strip plastic

    deformation and roll deformation can be directly used in the control of strip rolling,

    especially in the control of the shape and profile of strip.

Publication Date


  • 2011

Citation


  • Jiang, Z. (2011). Mechanics of cold rolling of thin strip. In J. Awrejcewicz (Eds.), Numerical Analysis Theory and Application (pp. 439-462). Croatia: InTech.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1244&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/239

Book Title


  • Numerical Analysis Theory and Application

Start Page


  • 439

End Page


  • 462