A generic model for surface texture development, wear and roughness transfer in skin pass rolling

Abstract

This paper describes the development and validation of a model describing the contribution of individual processing steps on the surface aspect of a skin passed steel strip surface validated by including microscopic analysis of the texturing process, the roll wear and roughness transfer during strip finishing. The presented work couples a fundamental model of the topology of a work roll surface based on literature and experimental observations alike for electro-discharge texturing. Simplified wear and imprint models, based on bearing area, are also discussed to replicate roll wear and roughness transfer during temper rolling. The model can provide topological quantification of roughness, peak counts and waviness for various fresh roll surface textures, and worn roll surfaces as well as the resultant imprinted strip surface.