Friction behavior under magnetorheological lubricant in sheet metal forming process

Friction behavior under magnetorheological lubricant in sheet metal forming process

Michele Brun, Enrico Simonetto, Andrea Ghiotti, Stefania Bruschi

Abstract. The increasingly high standards required in sheet metal forming industry, both geometrical and aesthetical, lead to continuous search of solutions to control the metal sheet flow during deformation. As alternative to traditional draw beads or hydraulically controlled segmented dies, the possibility of locally varying the material tangential speed by adapting the surface tribology at the interface between the blank and the blank holder represents a still unexplored scenario. The paper presents the feasibility analysis of the use of magneto-rheological (MR) fluids as lubricants in stamping, exploiting their ability to vary their rheological behaviour in response to external magnetic fields. To this aim, a new strip drawing test bench was developed to investigate the friction behaviour of MR fluids under different magnetic fields. The cold stamping of DC05 steel sheet was taken as reference case to investigate the influence of typical process parameters such as contact pressure, sliding speed and magnetic field.

Keywords
Friction, Lubrication, Magneto-Rheological Fluid

Published online 3/17/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Michele Brun, Enrico Simonetto, Andrea Ghiotti, Stefania Bruschi, Friction behavior under magnetorheological lubricant in sheet metal forming process, Materials Research Proceedings, Vol. 25, pp 281-288, 2023

DOI: https://doi.org/10.21741/9781644902417-35

The article was published as article 35 of the book Sheet Metal 2023

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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