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  Scopus ID: 21100926589

Comparing Computer Numerical Control Machining of Dissimilar Metals AA1050 and AA7075 Welded by SiO2 Nanofiller Infused Novel Friction Stir Processing with Conventional Friction Stir Welding for Improving Machinability

Thennavan Mahendran and Saravanan Rathinasamy

Abstract

This research investigation focuses to explore the effects novel friction stir processing (FSP) in dissimilar metals joining AA1050 and AA7075 by using novel SiO2 nanoparticles as filler in improving the machinability of welded plates in CNC (Computer numerical control) milling machine and comparing such performance with conventional friction stir welding (FSW) under same condition. The control group samples of dissimilar aluminum pieces were joined by FSW, and experimental group samples are joined by proposed novel FSP with SiO2 nanofillers. The sample size was predicted as 16 per group with the setting of G-power 80% and hence a total of 32 samples involved. The machined welded samples were carried out for surface roughness test and readings were observed. The observations were statistically tested with independent samples t-test and obtained a significant value (p) of < 0.001 for surface roughness. Therefore, there is a statistically significant difference between the two groups. The results reveal that the proposed novel FSP of SiO2 nanofiller infused joining method improves surface roughness significantly by reducing surface roughness by 82.77% when compared to conventional FSW.

Published on: October 05, 2023
doi: 10.17756/nwj.2023-s3-030
Citation: Mahendran T, Rathinasamy S. 2023. Comparing Computer Numerical Control Machining of Dissimilar Metals AA1050 and AA7075 Welded by SiO2 Nanofiller Infused Novel Friction Stir Processing with Conventional Friction Stir Welding for Improving Machinability. NanoWorld J 9(S3): S152-S156.

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