Optimisation of drilling process parameters of aluminium matrix composites (LM5/ZrO 2 )

S. Jebarose Juliyana and J. Udaya Prakash

International Journal of Enterprise Network Management, 2023, vol. 14, issue 1/2, 193-204

Abstract: Ceramics are incorporated into metal in the metal matrix composites (MMCs), which are tough to machine because of its abrasive quality. It is important to establish an effective technology for the efficacious machining of MMCs because of its future widespread use. The drilling of LM5/ZrO₂ composites employs Taguchi technique to find the optimum machining parameters to minimise surface roughness. The stir casting process is used to make a novel composite prepared by combining LM5 aluminium alloy with Zirconia with three distinct weight percentages (3, 6 and 9). In the produced composites, the effect of input parameters such as spindle speed, feed rate, drill material and reinforcement percentage on surface roughness was studied using L₂₇ orthogonal array by conducting drilling operation in CNC machine. The research work was performed using the Taguchi's signal-to-noise ratio approach. Response graphs were used to evaluate parametric effects. Analysis of variance (ANOVA) was accompanied to find the related variables and assess their influence on the individualities of the response. Feed rate and Spindle speed are the most influential input parameters to achieve minimal surface roughness.

Keywords: drilling; composites; ANOVA; stir casting; Zirconia; Taguchi technique. (search for similar items in EconPapers)
Date: 2023
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