Elongation-Control Effects in Rolling of Flat Wire from Round Wire

摘要

We have developed an elongation-control mill. It is a five-stand tandem mill and is able to control the deformation of the workpiece by means of the interstand forces generated by the differences of roll speeds. In this study, flat wires of various widths were rolled from round wires. Aluminum, copper, medium carbon steel, and stainless steel wires were used as stock. Various rolling properties, such as deformation of the workpiece, load on the mill, and forward slip, were examined. The interstand force was precisely measured and its influence on rolling properties were elucidated. It was confirmed that the elongation in rolling or the lateral spread could be changed over a wide range with this mill.