Investigating the Influence of Machining Parameters on Surface Roughness in AA2024/n-SiC Metal Matrix Composites Using Cryogenic Coolant

Kulathuraan Kavu, Adil Ahmed Sirajuddin, Hemanth Raju Thippeswamy, Vikrant Ganvir, Rajasekaran Saminathan, Anantha Padmanabham Koti Chakrapani and Satishkumar Palanisamy

Abstract

Metal matrix composite (MMC) is one type of composite that has seen a significant increase in popularity in recent years. The growing breadth of MMC applications justifies further investigation of their machinability. Rapid machining methods are also utilized to increase production speed. The goal of this research was to discover if higher cutting forces resulted from rougher surfaces in high speed AA2024/n-SiC composites. The CO₂ cryo coolant and MMC fabricated from AA2024/n-SiC, which is 16% Silicon Carbide, to reach cutting rates of 2700m/min. The experiment also used a 5-tiered central composites design. Cutting forces rise by 4-9% points when using CO₂ cryogenic coolants, but surface roughness (SR) rises by 18-24% points. With coolant, feed rates below 0.12 mm/tooth, cutting speeds over 2300 m/min, and depth of cut (DOC) between 1.0 and 1.5 mm produce the smoothest surfaces.

Published on: November 03, 2023
doi: 10.17756/nwj.2023-s3-161
Citation: Kavu K, Sirajuddin AA, Thippeswamy HR, Ganvir V, Saminathan R, et al. 2023. Investigating the Influence of Machining Parameters on Surface Roughness in AA2024/n-SiC Metal Matrix Composites Using Cryogenic Coolant. NanoWorld J 9(S3): S907-S914.

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