Optimal Selection of Cutting Parameters during Drilling of AA 7075 Alloy Using Taguchi Method Coupled with TOPSIS

Optimal Selection of Cutting Parameters during Drilling of AA 7075 Alloy Using Taguchi Method Coupled with TOPSIS
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© 2024 by IJETT Journal
Volume-72 Issue-6
Year of Publication : 2024
Author : Dodda Ravikanth, Mallapuram Bala Chennaiah, Gangolu Vijay Kumar, Reddy Srenivasulu, Karnatapu Leela Krishna
DOI : 10.14445/22315381/IJETT-V72I6P112

How to Cite?

Dodda Ravikanth, Mallapuram Bala Chennaiah, Gangolu Vijay Kumar, Reddy Srenivasulu, Karnatapu Leela Krishna, "Optimal Selection of Cutting Parameters during Drilling of AA 7075 Alloy Using Taguchi Method Coupled with TOPSIS," International Journal of Engineering Trends and Technology, vol. 72, no. 6, pp. 117-127, 2024. Crossref, https://doi.org/10.14445/22315381/IJETT-V72I6P112

Abstract
In the present study, investigations were carried out on the hole hole-making process on a drilling machine as per the Taguchi design of experiments then applied the TOPSIS method to make proper decision-making while optimal selection of combination of drilling parameters after experimental investigations based on a Taguchi design. Based on the five input factors and three levels L27 orthogonal array was selected as per Taguchi's design of the experiment method. In this experimental investigation, multiple performance characteristics such as burr height, thrust force and hole internal surface roughness were measured with well-calibrated apparatus. To achieve an optimal combination of input cutting parameters to meet the multiperformance characteristics of output responses, the TOPSIS method is employed for the data, which is extracted from the Taguchi design of experiments and found that speed 795rpm, feed 26 mm/min, diameter 10mm, point angle 100o and clearance angle 8o to the optimal combination of input cutting parameter values to give optimum responses such that burr height 0.174mm, thrust force 397N and surface roughness 1.331µm also obtained the order of preference of combination of cutting parameters while drilling on aluminium alloys to get the best quality, which is helpful to the machinists who are working on drilling to get good results.

Keywords
Burr size, Surface roughness, Taguchi coupled with TOPSIS, Thrust force.

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