Transient Thermal Analysis of Cold Strip Rolling Considering Rough Surface Contacts

This paper presents a transient thermal analysis of cold strip rolling, integrating both the microscale asperity deformation and macroscale strip deformation. A statistical characterisation was carried out to obtain the contact pressure and thermal contact conductance at the roll-strip interface. To...

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Bibliographic Details
Published in:Key Engineering Materials 2016-12, Vol.725, p.548-553
Main Authors: Zhang, Liang Chi, Qu, Pei Lei, Li, Shan Qing, Wu, Chu Han, Jiang, Zheng Lian
Format: Article
Language:English
Subjects:
Cold rolling
Contact
Deformation
Mathematical models
Rolling speed
Strain rate
Strip
Thermal analysis
Online Access:Get full text
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Summary:This paper presents a transient thermal analysis of cold strip rolling, integrating both the microscale asperity deformation and macroscale strip deformation. A statistical characterisation was carried out to obtain the contact pressure and thermal contact conductance at the roll-strip interface. To address the effects of rolling speed and temperature rise, Johnson-cook constitutive model of yielding strength was employed to incorporate the strain rate and temperature variation in the analysis. It was found that the developed model can successfully predict both the interface contact stress and temperature rise in the rolling bite.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.725.548