A review of asymmetric rolling

Abstract

The metal-forming industry is increasing its array of products every year. A connection between scientific research and practical examples from industry keeps improving the rolling processes. A historical overview proves that asymmetric rolling has been an interesting topic of many studies for more than six decades. Once performed only on steels and aluminium alloys, this process has outgrown the basic types and its application was extended to other metal alloys. This paper presents a basic review of asymmetric rolling focusing on activities in the roll gap and special mechanisms in deformation zone. Moreover, the effect of asymmetric rolling on the rolling force, torque, reduction and deformation was explained and supported with different results from scientific research. The microstructure and texture differences in comparison to the conventional (symmetric) rolling were discussed as an improvement of the mechanical properties. Besides the comparative study between simulations and experimental rolling, regarding the undesirable ski-effect, the discussion in this paper is always reinstating the possibilities of using asymmetric rolling in industry.

Topics & Concepts