Machining zinc-aluminium alloy reinforced with SiCp composites and determination of machinability properties using commercial cutting tools
by Rajaneesh N. Marigoudar
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 25, No. 2, 2023

Abstract: This paper highlights the cutting force variation during the turning trials on zinc aluminium alloy impregnated by silicon carbide particles-based composites. The necessary composite specimen with the prescribed composition is fabricated following the conventional stir-casting technique. Three different ranges of composites are fabricated containing SiC volume fractions 5%, 10% and 15%. The fabricated composite specimen is subjected to a dry turning process by employing uncoated (SNMG 090308) and coated tungsten carbide tools (SNMG 090308) under a specified set of machining variables. During each experimental machining trial, the cutting force acting on the cutting tool is measured. The impact of machining variables and composite composition on cutting force development is analysed and results are recorded. By observing the overall results of the experiment, it is observed that increased depth of cut, feed, size of the reinforcement particle and quantity of reinforcement presence in the composite cause increase in the force on the tool, on the contrary decline in the cutting force upon increasing cutting speed is observed. Coated carbide tools posed lower cutting force values in comparison with uncoated carbide tools during experimentation.

Online publication date: Thu, 14-Sep-2023

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