Relations between Friction Coefficient and Roll Surface Profiles, Rolled Sheet Characteristics in Cold Rolling of Steel Sheets

A theoretical model for simulation of the cold rolling process is presented. A characteristic part comprises the coupling of the bulk plastic deformation and the local plastic deformation of the strip due to impression of roll surface asperities into the work material. The lubricant, which in this case is a liquid, is modeled as a Newtonian fluid. The shear stresses at the roll/strip interface will he a function of the real area of contact, the shear stresses from boundary lubrication and internal shearing in the lubricant film. Simulations have been carried out for rolling with different speeds. The result is a diagram that can be interpreted as a Stribeck curve for cold rolling. The mean friction coefficient in the roll bite decreases with increasing speed to a minimum value i.e., mixed film lubrication prevails. For higher speeds the friction coefficient increases (hydrodynamic lubrication). The influence of roll surface roughness, thickness reductions, and viscosities of lubricant upon the Stribeck curve is also studied. It is concluded that the model can be used to find optimal combination of process parameters for the cold rolling process.

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Modelling of the microscopic strain heterogeneity during cold rolling of steel sheets. Prediction of the deformation texture

Journal de Physique IV (Proceedings) ◽

10.1051/jp4:1999905 ◽

1999 ◽

Vol 09 (PR9) ◽

pp. Pr9-43-Pr9-52 ◽

Cited By ~ 6

Author(s):

L. Delannay ◽

P. van Houtte ◽

I. Samajdar

Keyword(s):

Cold Rolling ◽

Deformation Texture ◽

Steel Sheets

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Influence of Cold Rolling on Diffusion Bondability of SUS316L Stainless Steel Sheets

MATERIALS TRANSACTIONS ◽

10.2320/matertrans.m2013405 ◽

2014 ◽

Vol 55 (3) ◽

pp. 633-636 ◽

Cited By ~ 7

Author(s):

Takashi Harumoto ◽

Yuya Yamashita ◽

Osamu Ohashi ◽

Takashi Ishiguro

Keyword(s):

Stainless Steel ◽

Cold Rolling ◽

Steel Sheets

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Cold rolling and intercritical annealing of C-Mn steel sheets with different initial microstructures

Materials Science and Engineering A ◽

10.1016/j.msea.2018.09.008 ◽

2018 ◽

Vol 736 ◽

pp. 392-399 ◽

Cited By ~ 3

Author(s):

Y. Karimi ◽

S. Hossein Nedjad ◽

H. Shirazi ◽

M. Nili Ahmadabadi ◽

H. Hamed Zargari ◽

...

Keyword(s):

Cold Rolling ◽

Intercritical Annealing ◽

Steel Sheets ◽

Mn Steel

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Change in Earing of Low-carbon Aluminum-killed Steel Sheets with Hot- and Cold-rolling Conditions.

ISIJ International ◽

10.2355/isijinternational.40.409 ◽

2000 ◽

Vol 40 (4) ◽

pp. 409-417 ◽

Cited By ~ 1

Author(s):

Hidekuni Murakami ◽

Tomoji Kumano ◽

Takehide Senuma

Keyword(s):

Cold Rolling ◽

Low Carbon ◽

Steel Sheets ◽

Hot And Cold Rolling

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Effect of Hot-Rolled Microstructure on the Recrystallization Texture of Cold-Rolled Non-Oriented Electrical Steel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.298.203 ◽

2011 ◽

Vol 298 ◽

pp. 203-208 ◽

Cited By ~ 2

Author(s):

Zi Li Jin ◽

Wei Li ◽

Yi Ming Li

Keyword(s):

Cold Rolling ◽

Electrical Steel ◽

Texture Evolution ◽

Steel Strip ◽

Silicon Steel ◽

Grain Structure ◽

Recrystallization Annealing ◽

Rolled Sheet ◽

Cold Rolled ◽

Hot Rolled

With the help of orientation distribution function (ODF) analysis, experiments of different hot band grain microstructure 0.33% silicon steel were cold-rolled and annealed in the laboratory，to study the effect of the microstructure hot-rolled steel strip for cold rolled non-oriented silicon steel microstructure and texture of recrystallization annealing. The results show that hot rolled microstructure on cold rolled Non-Oriented Electrical Steel cold-rolled sheet evolution of texture and recrystallization have important influence, the quiaxed grain structure of steel by cold rolling and recrystallization annealing, the recrystallization speed than the fiber grain-based mixed crystals recrystallization fast , With the equiaxed grains made of cold rolled silicon steel after annealing the {110}<UVW> texture components was enhanced and {100}<uwv> texture components weakened. Different microstructure condition prior to cold rolling in the recrystallization annealing process the texture evolution has the obvious difference, the equiaxial grain steel belt cold rolling and annealing, has the strong crystal orientation. This shows that the equiaxed grain when hot microstructure is detrimental to the magnetic properties of cold-rolled non-oriented silicon steel to improve and increase.

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Effects of Solubility Limit and the Presence of Ultra-Fine Al6Fe on the Kinetics of Grain Growth in Dilute Al-Fe Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.550.339 ◽

2007 ◽

Vol 550 ◽

pp. 339-344 ◽

Cited By ~ 11

Author(s):

Shigeo Saimoto ◽

Hai Ou Jin

Keyword(s):

Grain Size ◽

Cold Rolling ◽

Grain Growth ◽

Solubility Limit ◽

Rolled Sheet ◽

Migration Rates ◽

Cold Rolled ◽

Fe Alloys ◽

Grain Growth Kinetics ◽

Kinetics Of

A nominally pure Al slab was thermo-mechanically treated to result in a near random texture of 90 m grain size. Subsequent cold rolling with intermediate anneals at 230, 275, and 300°C reduced the Fe solute to near equilibrium compositions below 0.5 ppm atomic. The final cold rolled sheet continuously recrystallized; grain growth of this structure is reported. A grain-growth kinetics mapping was generated, correlating the parameters of Fe-in-Al solubility limit, Fe diffusivities in the grain boundaries and the Al lattice and the activation energies for migration rates.

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