The influence of die approach and die bearing on properties of high-carbon steel wire

摘要

This paper assesses the influence of the die approach and bearing on mechanical-technologicalrnproperties of high-carbon steel wires. The drawing process of □u001f2.9 mm wires to the final wire of□ u001f1.98rnmm was conducted in 5 passes, by means of a multi-die drawing Koch machine. The drawing speeds inrnthe final passes were 4 m/s. The investigation of mechanical-technological properties was conducted forrnwires drawn according to four variants, in which yield strength, tensile strength, uniform and totalrnelongation, reduction of area, the number of twists and the number of bends were determined.