The influence of the surface defects concerning drawing processes of the micro-alloyed steel

摘要

This paper provides a report on the effect of the pass reduction concerning the strain course in wires made of micro-alloyed steel, 23MnB4; namely successively investigating three particular points-before the die, in the die itself, and at the die output section so that the strain condition is mapped in its very detail, which is of fundamental importance for the behaviour of surface defects in the process of drawing the wire.