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Materials (Basel). 2018 May 25;11(6). pii: E886. doi: 10.3390/ma11060886.

Influence of the Regime of Electropulsing-Assisted Machining on the Plastic Deformation of the Layer Being Cut.

Author information

1
Department of Mechanical Engineering (EPSEVG), Universitat Politécnica de Catalunya, Av. de Víctor Balaguer Vilanova i la Geltrú, 08800 Barcelona, Spain. hameeds@tcd.ie.
2
Department of Mechanical Engineering (EPSEVG), Universitat Politécnica de Catalunya, Av. de Víctor Balaguer Vilanova i la Geltrú, 08800 Barcelona, Spain. hernan.gonzalez@upc.edu.
3
Department of Electrical Engineering (EPSEVG), GAECE group, Universitat Politécnica de Catalunya, Av. de Víctor Balaguer Vilanova i la Geltrú, 08800 Barcelona, Spain. iperat@ee.upc.edu.
4
Department of Mechanical Engineering (EPSEVG), Universitat Politécnica de Catalunya, Av. de Víctor Balaguer Vilanova i la Geltrú, 08800 Barcelona, Spain. amelia.napoles@upc.edu.
5
Department of Mechanical and Metallurgical Engineering, Pontificia Universidad Catolica de Chile, Av. Vicuña Mackenna 4860, Region Metropolitana 7820436, Chile. antonio.egea@ing.puc.cl.
6
Department of Mechanical Engineering, Aeronautics Advanced Manufacturing Center (CFAA), Faculty of Engineering of Bilbao, Alameda de Urquijo s/n, 48013 Bilbao, Spain. antonio.egea@ing.puc.cl.

Abstract

In this article, the influence of electropulsing on the machinability of steel S235 and aluminium 6060 has been studied during conventional and electropulsing-assisted turning processes. The machinability indices such as chip compression ratio ξ , shear plane angle ϕ and specific cutting energy (SCE) are investigated by using different cutting parameters such as cutting speed, cutting feed and depth of cut during electrically-assisted turning process. The results and analysis of this work indicated that the electrically-assisted turning process improves the machinability of steel S235, whereas the machinability of aluminium 6060 gets worse. Finally, due to electropluses (EPs), the chip compression ratio ξ increases with the increase in cutting speed during turning of aluminium 6060 and the SCE decreases during turning of steel S235.

KEYWORDS:

chip compression ratio; current density; electropulsing; machinability; specific cutting energy

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