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1 Journal of Applied Materials Engineering

1 2020

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Machining of Aluminums Alloys with the Addition of Reinforced Carbide Phase

Putyra Piotr, Podsiadło Marcin, Jaworska Lucyna, Laszkiewicz-Łukasik Jolanta, Dyzia Maciej, Czechowski Kazimierz, Krzywda Tadeusz

Journal of Applied Materials Engineering

2020

Vol. 60, iss. 1

12--22

This paper presents the results of the processes of treating aluminum matrix casting materials with the addition of a ceramic phase. The matrix of the composite material was an Al-Si7 casting alloy with addition of 2 mass% Mg. The volume fraction of the reinforcing phase in the form of silicon carbide ranged from 5 to 15 vol.%. Preliminary machining tests were carried out at the Mori Seiki NL2000SY turning and milling center. The cutting properties were evaluated during longitudinal turning. Cutting tests were carried out using tools made of polycrystalline diamond, regular boron nitride, and cemented carbides. The nature of VBB wear was checked in accordance with PN-ISO 3685:1996. The influence of machining parameters (cutting speed, feed, cutting depth) on the value of cutting tools temperature was determined. An analysis of the chip shaping mechanism during machining was performed at various cutting parameters. The tests were carried out using the FLIR A655 thermal imaging camera and the fast Phantom MIRO M310 fast camera. Cast composite materials were also subjected to the processes of waterjet cutting, EDM cutting, and EDM drilling (EDM electro discharge machining).