UTILIZATION OF THE PROCESS OF SEVERE PLASTIC DEFORMATION IN INCREASING THE QUALITY OF THE CU SHEET METAL STRIP

1 TILL Jakub
Co-authors:
1 MICHALSKI Jakub 1 PETRŮ Jana 1 ŠPALEK František
Institution:
1 VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, jakub.till@vsb.cz , jakub.michalski@vsb.cz, jana.petru@vsb.cz, frantisek.spalek@vsb.cz
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
487-494
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
21 views / 4 downloads
Abstract

Achieving a very high degree of deformation in sheet metal forming is a very complex problem. It is the main prerequisite for achieving an ultra-fine grain structure in the material. For the extrusion of the sheet of Cu with the DRECE method, at least 8-10 passes through the forming tool must be performed to achieve sufficient refinement of the structure. This is in contrast to a much smaller number of passages to achieve an equally high degree of deformation in the ECAP method when we use the passage type marked as “C”. This method is used for continuous extrusion of a strip of sheets. The paper analyzes the increase of mechanical properties and the refinement of the structure on the newly developed forming device (three-roll feed of the material combined with extrusion) for the Cu sheet metal strip, when choosing the “C” deformation path (rotation of the strip of 180° after each pass).

Keywords: Severe plastic deformation (SPD), DRECE method, pure Cu, microstructure, mechanical properties
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