SURFACE INTEGRITY OF AA 6351 âT6 WHEN MACHINED USING DISTINCT CUTTING DIAMETERS & TERMINOLOGY UNDER A DRY CUTTING CONDITION
Objectives: it is the common observation that industries nowadays demand high product quality with optimized machining parameters for getting Quality of the product. The required quality and nature of material dictates these parameters. With new material discovered periodically, setting these parameters optimized to require outcome on machining these materials has become challenging. Methods/Statistical analysis: In this study, to optimize three machining outputs, namely surface finish, material removal rate (MRR) and power consumption for 3 input parameters, namely cutting speed, feed rate and depth of cut (2 and 3 inserts) for AA6351-T6 by employing ANOVA technique with a Taguchi orthogonal array table for planning of the experiments in Minitab. Findings: AA6351 is a high strength low corrosion alloy of aluminum that has a lot of application in naval engineering. Cutting speed, depth of cut and feed rate are pivotal for machining processes. Surface roughness (using a wide range of cutting speed, feed per tooth and axial depth of cut when HSM AA 6351 –T 4 with different values of cutter diameter of 16 mm (2 inserts) another one having 25 mm (3 inserts) where the Taguchi L9 orthogonal array method was applied), power consumption (power consumption) and MRR (MRR) were chosen as the output parameters since they are easily measurable and provide a measure of quality of the machining process. Application / Improvement: Mathematical models for cutting parameters and cutter diameter were obtained from regression analyses to calculate values of surface finish, MRR, Power consumption. S/N ratio and ANOVA analyses were also performed.
S.P. SUNDAR SINGH SIVAM, K. SARAVANAN, N. PRADEEP, S. RAJENDRA KUMAR AND K. SATHIYA MOORTHY
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