PHYSICAL MODELLING OF THE SEAMLESS MICRO-ALLOYED STEEL TUBES PRODUCTION DEPENDING ON THE DIFFERENT TEMPERATURES AND RPM SPEEDS OF THE WORKING ROLLS

1 NOGA Roman
Co-authors:
1 JONŠTA Petr 1 PERNA Tomáš 1 VINDYŠ Marek 1 KOTÁSEK Ondřej 1 KURKA Vladislav
Institution:
1 MATERIAL & METALLURGICAL RESEARCH Ltd., Ostrava, Czech Republic, EU, projekty@mmvyzkum.cz
Conference:
31st International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 18 - 19, 2022
Proceedings:
Proceedings 31st International Conference on Metallurgy and Materials
Pages:
286-291
ISBN:
978-80-88365-06-8
ISSN:
2694-9296
Published:
30th June 2022
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
270 views / 136 downloads
Abstract

The paper presents laboratory physical modeling of the seamless tubes production, specifically the first step of the Mannesmann production process, the so-called punching. A “Universal rolling mill” at MATERIAL & METALLURGICAL RESEARCH Ltd. was used for experiments. The experimental material was micro-alloyed steel. The tests were carried out at four different heating temperatures and at different rpm speeds of the working rolls. The other settings of the rolling mill remained the same. In terms of the geometrical parameters, the biggest necking of the punched sample (preferably at both ends) was observed with increasing temperature and strain rate. The torque decreased with increasing temperature and with lower speed of working rolls. The punching time and the total current power consumption decreased with increasing temperature and with a higher deformation rate.

Keywords: Laboratory physical modelling, punching, seamless tubes, micro-alloyed steel, temperature, rpm speeds of the working rolls

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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