Peilei Qu

TL;DR: In this article, a unified method for characterizing the hydrodynamic, mixed and boundary lubrication regimes in cold strip rolling is presented, which involves random surface asperities, multi-scale plastic deformation of both the asperity and workpiece, and a statistical modeling of an equivalent interface between the lubricated surfaces in contact sliding.

TL;DR: In this paper, a multi-scale method was proposed to investigate the interface pressure and friction in a 3D model of cold strip rolling, where an equivalent interfacial layer was introduced to integrate the effect of lubricant with surface asperity deformation.

TL;DR: In this paper, a simple approach for analysing the surface texture transfer in cold rolling of metal strips was presented, which made use of the advantages of the slab method and accommodated the surface roughness effect of a rigid work roll.

TL;DR: In this paper, a multi-field analysis of full hydrodynamic lubrication in high speed cold rolling of metal strips is presented, where a robust method is developed to solve the fluid field (the lubricant flow at the roll-strip interface) and solid field (elastoplastic deformation of a metal strip) in a simple step.

TL;DR: In this article, a 3D characterisation method was proposed to reveal the mechanisms of texture transfer in the skin pass of metal rolling is challenging due to the complex contact of randomly distributed surface asperities in both the roll and strip surfaces.