In recent years, aluminum metal matrix composites (Al-MMC) are found as a potential material for numerous applications owing to its excellent tribological and mechanical properties. In this work, the machining characteristics of aluminum alloy (Al7075) reinforced with TiC/MoS2 having nanoparticle has been studied. The samples of aluminum metal matrix composites by varying TiC in 0, 2 and 4 and MoS2 in 0 and 2 of the percentage weight of aluminum alloy (Composite 1(Al7075), Composite 2 (Al7075/2TiC/2MoS2) and composite 3 (Al7075/4TiC/2MoS2), respectively) are fabricated by the stir-casing method. The turning characteristics of the developed metal matrix composites are studied at various parameters such as cutting velocity (30 m/min, 60 m/min and 90 m/min), cutting depth (0.5 mm, 1.0 mm and 1.5 mm) and composites (1, 2 and 3) using TiN coated cutting tool by dry turning at 0.05 mm/rev feed rate. The turning characteristics of the prepared samples are compared each other under L20 orthogonal array on CNC turning machine. The significant findings in the present study are: hardness of base aluminum alloy is found to increase with the addition of TiC/MoS2 in Al7075; surface roughness and flank wear are found to grow with the addition of nanoparticles of TiC/MoS2 in Al7075, evidence of built-up edge is observed for addition of nanoparticles in Al7075; cracks are originated from the edges of the chip and are propagated to the inner side along shear planes on examining the chip shape..
Experimental Investigation on Turning Characteristics of TiC/MoS2 Nanoparticles Reinforced Al7075 Using TiN Coated Cutting Tool
Sae Technical Papers
International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility ; 2019
2019-10-11
Aufsatz (Konferenz)
Englisch
Metals , Aluminum alloys , Aluminum , Tribology , Cutting , Composite materials , Wear
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