Effect of process parameters on roll separating force, driving torque and end crop length during grooved hot rolling of SAE 1020 steel

Singh, Gulvir; Singh, Pradeep K.

doi:10.1016/j.jmapro.2022.05.015

Cited by 7 publications

(3 citation statements)

References 33 publications

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“…Work rolls receive roll-separating force in response to the applied compressive force, as seen in Figure 1. Higher roll force ramifications include higher mill load, lowering product quality, and work-roll deterioration [76,77]. The frictional force is a component of the overall roll force that enables the rolling to take place.…”

Section: Roll Force Reductionmentioning

confidence: 99%

Nanolubrication and tribological behaviour of the rolling process – a review

Sabar

Ghosh

2023

Surface Engineering

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The purpose of the present article is to dispense an extensive review of research works performed to observe the impacts of nanoparticles tribologically and rationalise the use of nanoparticles in metal rolling lubrication. The results of past experimental research were analysed based on tribological behaviour, lubricant characteristics, and rolling quality. Improvements in tribological behaviour, rolled surface characteristics and mechanical strength were illustrated in the present work. A specific concentration of nanoparticles in the base lubricant was discovered which provided beneficial outcomes. The oxide scale formed as an inevitable byproduct is suppressed by the nano-application. The nanoparticles served better in the rolling process in terms of temperature control due to the enhanced thermal conductivity of the base lubricant. The article advocates for the adoption of nanolubrication in replacement of traditional lubricating fluids in the rolling process. The article lastly presents future challenges and the potential of nanolubricants in engineering applications.

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Section: Roll Force Reductionmentioning

confidence: 99%

Nanolubrication and tribological behaviour of the rolling process – a review

Sabar

Ghosh

2023

Surface Engineering

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“…Transvalor Forge Nxt1.1 software [ 20 ] was applied to analyze the effective strain distribution in the deformation zone and the material deformation law during the MFN process [ 8 , 21 ]. The numerical simulation model is shown in Figure 4 , which included an upper anvil, a stepped mandrel, a lower V-shaped anvil, and an outer stepped preform.…”

Section: Numerical Simulation Model and Experimental Proceduresmentioning

confidence: 99%

Study on Mandrel Forging and Necking Process of a Hollow Shaft with an Inner Stepped Hole

Tian

et al. 2022

Materials

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An advanced process of mandrel forging and necking (MFN) was proposed for a hollow shaft with an inner stepped hole. The conventional mandrel forging process with an equal-diameter mandrel was used to form the outer stepped preform, and then the preform was formed into the hollow shaft with an inner stepped hole using the MFN process. A numerical simulation model was established to study the effect of the pressing reduction and the rotation angle on the MFN process. A preforming design method based on the isometric radius difference was given according to the principle of the equal volume, and the parameter relationships between the outer and inner stepped shapes were clarified. The experimental deformation laws of the MFN process were consistent with those obtained by the simulation. The MFN process and its preforming design method provide a new free forging approach for large hollow forgings with inner stepped holes.

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“…As a result, they obtained a rolling force model for the heavy plate. Singh and Singh [14] obtained a regression equation of the relations of rolling parameters and developed a model for groove rolling.…”

Section: Introductionmentioning

confidence: 99%

Mechanical modeling of groove rolling for heavy plate based on the weighted average yield criterion

Zhang¹,

Wan²,

Zhang³

et al. 2023

Preprint

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A new model is constructed using the weighted average yield criterion (WA criterion) to eliminate the excessive model error in estimating the groove rolling force of a heavy plate. To this end, under the precondition of plane deformation, a two-dimensional strain rate fieldfor describing groove rolling is established in the cylindrical coordinate system. The WA criterion, replacing the Mises yield criterion (Mises criterion), is introduced to calculate the internal deformation power based on the strain rate field. The shear power and friction power are also obtained according to the shear yield condition derived from the criterion. Finally, an analytical rolling force model is established based on the variational principle. The results are compared with those by a model based on the Mises criterion and their corresponding measured ones. The model developed in this paper is proven to be more accurate than the model using the Mises criterion. Through parameter analysis, it is found that the groove rolling force is significantly affected by these parameters, such as the size of the rolled workpiece, reduction, and friction factor. The present research can serve as a scientific foundation for high-precision groove rolling control for the heavy plate.

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Effect of process parameters on roll separating force, driving torque and end crop length during grooved hot rolling of SAE 1020 steel

Cited by 7 publications

References 33 publications

Nanolubrication and tribological behaviour of the rolling process – a review

Nanolubrication and tribological behaviour of the rolling process – a review

Study on Mandrel Forging and Necking Process of a Hollow Shaft with an Inner Stepped Hole

Mechanical modeling of groove rolling for heavy plate based on the weighted average yield criterion

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