Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter April 22, 2016

Application of the three-high skew rolling to magnesium rods production

Anwendung des Dreihöhen-Schrägwalzens bei der Herstellung von Magnesiumstäben
  • Andrzej Stefanik , Piotr Szota , Sebastian Mroz and Henryk Dyja
From the journal Materials Testing

Abstract

The main purpose of this paper was the theoretical and laboratory analysis of 20 mm AZ31 magnesium alloy rods rolled in the three-high skew rolling mill process. For this, the numerical analysis was carried out by using Forge2011® computer program. Based on the theoretical results, the distributions of stress, strain and temperature were determined. It turned out that rolling on the three-high skew rolling mill allows the rolling process to be run with high elongation factors in a single pass, which makes the skew rolling more economical and reduces the losses for roll mechanical working. After the rolling in three-high skew rolling mill, the rods of 20 mm diameter were straight, without surface defects and a low ovality.

Kurzfassung

Die Zielsetzung dieses Beitrages besteht in der Durchführung von theoretischen Analysen und Laboranalysen von 20 mm dicken Stäben aus der Magnesiumlegierung AZ31, die in drei Höhen schräg gewalzt wurden. Hierzu wurde eine numerische Analyse mit dem Programm Forge2011® ausgeführt. Basierend auf den theoretischen Ergebnissen wurde die Verteilung der Spannungen, Dehnungen und der Temperatur bestimmt. Es stellte sich heraus, dass das Dreihöhen-Walzen es erlaubt, den Walzprozess mit großen Verlängerungsfaktoren in einem Arbeitsgang durchzuführen, was das Schrägwalzen ökonomischer macht und die Verluste infolge der mechanischen Arbeit an den Walzen reduziert. Die 20 mm dicken Stäbe sind nach dem Walzen in der Dreihöhen-Schrägwalze gerade gerichtet, haben keine Oberflächendefekte und eine geringe Ovalität.


*Correspondence Address, Dr. Eng. Andrzej Stefanik, Institute of Metal Forming aand safety Engineering, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Al. Armii Krajowej 19, 42–200 Czestochowa, Poland, E-mail:

PhD Andrzej Stefanik, born in 1977, achieved his MSc in the Faculty of Metallurgy and Materials Engineering at the Czestochowa University of Technology (CUT), Poland, in 2003 and received his DSc from the Faculty of Materials Processing Technology and Applied Physics, also at CUTHe is currently Assistant Professor at CUT in the Institute of Metal Forming and Safety Engineering. He is an author or a coauthor of approx. 90 papers and 10 solutions used in the industry. His research interests cover numerical and physical modeling of metal forming processes and materials science, the three-high rolling mill technology, optimization of metal forming technology, new approaches and modifications of the roll pass design, application of the energy of explosive materials in the technological processes of metal forming.

Associate Professor Piotr Szota, born in 1975, received his MSc from Czestochowa University of Technology (CU), Faculty of Metallurgy and Materials Engineering, Poland, in 2000, and his DSc in the Faculty of Materials Processing Technology and Applied Physics at the same university in 2005. He is currently Assistant Professor in the Institute of Metal Forming and Safety Engineering, CUT. He is an author or a coauthor of approx.110 papers and over 30 solutions used in the industry. His research interests cover numerical and physical modeling of metal forming processes and materials science, optimization of metal forming technology, new approaches and modifications of roll pass design.

Associate Professor Sebastian Mróz, born in 1974, achieved his MSc at Czestochowa University of Technology (CUT), Faculty of Metallurgy and Materials Engineering, Poland, in 1998, and his DSC at CUT, Faculty of Materials Processing Technology and Applied Physics, in 2002. He is currently Associate Professor in the Institute of Metal Forming and Safety Engineering, Faculty of Materials Processing Technology and Applied Physics at CUT and Vice Director of the institute. He is an author or a coauthor of approx. 220 papers and over 50 solutions used in the industry. His research interests cover numerical and physical modeling of metal forming processes and materials science, optimization of the metal forming technology, new approaches and modifications of the roll pass design, applications of the energy of explosive materials in the technological processes of metal forming (bimetallic bars).

Professor Henryk Dyja, born in 1946, received his MSc from Czestochowa University of Technology (CUT), Faculty of Metallurgy, Poland, in 1971, and his DSc from the Mining and Metallurgical Academy in Krakow, Poland, in 2002. Since 1990, he has been Associate Professor at CUT, Faculty of Materials Processing Technology, and currently he is Full Professor at CUT. He is a Doctor Honoris Causa of Czestochowa University of Technology, National Metallurgical Academy of Ukraine in Dniepropetrovsk, Institute of Steel and Alloys in Moscow and St. Petersburg State Politechnical University. Furthermore, he is an author or a coauthor of approx. 800 papers and over 100 solutions used in the industry. He participated in projects and research commissioned directly by the industry. He is also author of many technical books in the field of metallurgy and materials engineering. His main research fields are metallurgy, materials engineering and new technologies in production processes.


References

1 A. A.Luo: Magnesium casting technology for structural applications, Journal of Magnesium and Alloys1 (2013), No. 1, pp. 22210.1016/j.jma.2013.02.002Search in Google Scholar

2 S. J.Liang, Z. Y.Liu, E. D.Wang: Simulation of extrusion process of AZ31 magnesium alloy, Materials Science and Engineering A499 (2009), pp. 22122410.1016/j.msea.2007.11.120Search in Google Scholar

3 R.Kawalla, G.Lehmann, M.Ullmann, H.-P.Vogt: Magnesium semi-finished products for vehicle construction, Archives of Civil and Mechanical EngineeringVIII (2008), No. 2, pp. 93101Search in Google Scholar

4 K.Nakasuji, K.Kuroda, C.Hayaschi: Reduce rolling characteristics of hollow piece by rotary rolling mill, ISIJ International36 (1996), No. 5, pp. 57257810.2355/isijinternational.36.572Search in Google Scholar

5 A.Stefanik, P.Szota, S.Morz, H.Dyja: Analysis of the aluminum bars in three-high skew rolling mill rolling process, Solid State Phenomena220–221 (2015), pp. 89289710.4028/www.scientific.net/SSP.220-221.892Search in Google Scholar

6 R. L.Edgar: Global Overview on Demand and Applications for Magnesium Alloys, in Magnesium Alloys and their Applications (Ed.: K. U.Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany (2000) 10.1002/3527607552.ch1Search in Google Scholar

7 J.Michalczyk, T.Bajor: Study on the influence of temperature, velocity and shape of tools on the combined process of extrusion and broaching of the deep sleeve with the bottom made of the AZ31 alloy, Archives of Metallurgy and Materials56 (2000), pp. 53354110.2478/v10172-011-0057-1Search in Google Scholar

8 T.Bajor, M.Krakowiak, H.Dyja: Numerical analysis of AZ31 alloy extrusion process by the ECAE method, Inzynieria Materialowa35 (2014), No. 2, pp. 7577Search in Google Scholar

Published Online: 2016-04-22
Published in Print: 2016-05-02

© 2016, Carl Hanser Verlag, München

Downloaded on 29.11.2023 from https://www.degruyter.com/document/doi/10.3139/120.110876/html
Scroll to top button