THE EFFECT OF DRAWING SPEED ON FORCE PARAMETERS IN MULTIPASS DRAWING PROCESS OF STEEL WIRES

1 SULIGA Maciej
Institution:
1 Czestochowa University of Technology, Faculty of Production Engineering and Materials Technology, Institute of Metal Forming and Safety Engineering, Czestochowa, Poland, EU, suliga@wip.pcz.pl
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
494-500
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
110 views / 182 downloads
Abstract

In this work the theoretical-experimental analysis of the effect of the drawing speed on force parameters in multipass drawing process of high carbon steel wires has been assessed. Theoretical analysis of the heating of the wire in the high speed multistage drawing process was carried out on software Drawing 2D, in which the longitudinal stresses, drawing forces and drawing stresses has been estimated. Whereas experimental studies consisted in measurement of force parameters in a real multipass drawing process of steel wires.The drawing process of  5.5 mm wire rod to the final wire of 1,7 mm was conducted in 12 passes, in industrial conditions, by means of a modern Koch multi-die drawing machine. The drawing speeds in the last passes were: 5, 10, 15, 20 and 25 m / s.The drawing power measurements carried out in industrial conditions during high speed multipass drawing process creates a unique possibility to verify the theoretical research based on the finite element method. The study showed a significant effect of the drawing speed on force parameters in drawing process. Depending on the actual conditions of the drawing, ie. temperature, friction and lubrication, increasing the drawing speed (in range of 5 to 25 m / s) can result in both an increase and a decrease in stress drawing.

Keywords: Wire, high carbon steel, drawing speed, FEM, drawing power

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