A theoretical and experimental investigation on wire flat rolling process using deformation pattern

In this research the deformation of wire in flat rolling process has been investigated. A theoretical relationship has been developed to relate the reduction in height of wire to the width of contact area between the rolls and wire. This relationship depicts that the width of contact area is proportional to square root of reduction in height of wire. Using that relationship the width of contact area for wires of different diameter have been calculated and compared with the appropriate experimental data after flat rolling. Also, a relationship is developed to assess the effect of reduction in height of wire on the lateral spread in wire flat rolling process. Moreover, the effect of material properties and roll speed on the width of contact area and lateral spread of wire are investigated. It is found that the material properties and roll speed have a negligible effect on the width of contact area and lateral spread of wire. (C) 2004 Elsevier Ltd. All rights reserved.