The calculation of roll torque and roll separating force for broadside rolling by stream function method

Zhang, S.H.; Zhao, Dewen; Gao, Chuang

doi:10.1016/j.ijmecsci.2012.02.006

Cited by 38 publications

(24 citation statements)

References 10 publications

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“…(19), (20), and (22), at the exit of deformation zone, w x ′ = 0, v yI = v zI = v yII = v zII = v yIII = v yIII = 0, there is no shear power at the exit section but at the entry section. Using mean value theorem of integral:…”

Section: Shear Powermentioning

confidence: 99%

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The calculation of vertical rolling force by using angular bisector yield criterion and Pavlov principle

Cao

Liu

Luan

et al. 2016

Int J Adv Manuf Technol

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The automatic width control of the strip that is used in vertical rolling is a key issue in the hot strip rolling process. It is the first time that the internal deformation power and the friction power are obtained by using angular bisector yield criterion and Pavlov projection principle in the vertical rolling. At the same time, the shear power is determined by use of the integral mean value theorem. Then the vertical rolling force and shape parameters are obtained by minimizing the total power functional. The relative error of rolling forces is less than 8.29 % compared with those measured on-line in a hot strip rolling plant. Moreover, the formula forms of the three powers mentioned above are greatly simplified and improved.

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Section: Shear Powermentioning

confidence: 99%

“…Using a search method, the minimum value of power functional J * min and the minimum values of rolling force can be obtained [19], respectively.…”

Section: Total Powermentioning

confidence: 99%

The calculation of vertical rolling force by using angular bisector yield criterion and Pavlov principle

Cao

Liu

Luan

et al. 2016

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…(52) attains the minimum of total power J min * [17,18]. Note that M is the rolling torque, ω is the roll angular velocity, and P is the rolling force per unit slab thickness, and then [19] …”

Section: Total Deformation Power and Its Minimizationmentioning

confidence: 99%

Analysis of vertical rolling using double parabolic model and stream function velocity field

Liu

Zhang

Zhao

et al. 2015

Int J Adv Manuf Technol

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Vertical rolling has been widely used in the roughing stand of hot strip rolling to improve the precision of slab width which influences the finished product quality significantly in actual production. Double parabolic dogbone function model and corresponding velocity and strain r a t e f i e l d s a r e f i r s t l y p r o p os e d b a s e d o n t h e incompressibility condition and stream function. They are successfully applied to three-dimensional vertical rolling. Using the first variation principle of rigid-plastic material, an analytical solution of slab total power functional in vertical rolling is obtained. Then, the shape parameters and the rolling force are received by minimizing the power functional. The error of shape and power parameters is within 4 % compared with finite element method (FEM) simulation's result and less than 9.5 % compared with other models' result.

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“…(21) attains the minimum of total power Φ min . Then, the corresponding minimum values of rolling torque, rolling force and stress effective factor [26] can be determined respectively as…”

Section: Total Deformation Power and Its Minimizationmentioning

confidence: 99%

Analysis of hot strip rolling using exponent velocity field and MY criterion

Liu

Zhao

et al. 2015

International Journal of Mechanical Sciences

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The calculation of roll torque and roll separating force for broadside rolling by stream function method

Cited by 38 publications

References 10 publications

The calculation of vertical rolling force by using angular bisector yield criterion and Pavlov principle

The calculation of vertical rolling force by using angular bisector yield criterion and Pavlov principle

Analysis of vertical rolling using double parabolic model and stream function velocity field

Analysis of hot strip rolling using exponent velocity field and MY criterion

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