Manufacturing of Precision Seamless Steel Tubes Using Cold Drawing Technology: Simulation and Experiment

Abstract:

This paper deals with precision seamless tube drawing process in Železiarne Podbrezová, considering a three-pass drawing technology without the intermediate annealing. The material chosen was the E235 steel grade, cold-drawn from the initial dimension of ∅ 70 x 6.3 mm to the final dimension of ∅ 44 x 3.0 mm. Strength and deformation analyses for each drawing pass were made, based on simulation results in numerical modelling software DEFORM 2D. The deformations calculated for all passes served as a guideline for further process optimization. Furthermore, the effect of a particular reduction on mechanical properties was investigated (yield point R_e, ultimate tensile strength R_m, ductility A, and hardness HV). The research shown here is a part of the Research Project No. 3-2014/ŽPVVC “TUMIFORM – Optimization of precision tube drawing technology considering dislocation theory, microstructure, and plasticity limit“, being solved at ŽP VVC s.r.o. in Podbrezová, Slovakia. This project deals with the optimization of tube drawing technology utilizing the multi-pass drawing approach. This approach allows for skipping the intermediate annealing between each two successive draws.

• Periodical: Applied Mechanics and Materials (Volume 808)
• Pages: 80-85
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.808.80
• Online since: November 2015
• Authors: Martin Ridzon*, Pavol Buček, Martin Necpal, Ľudovít Parilák
• Keywords: Cold Forming, Mechanical Properties, Numerical Modelling, Plastic Deformation, Tube Drawing

References

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