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  Scopus ID: 21100926589

A Novel Evaluation of Material Removal Rate for Al-Si7Mg Alloy Using TiCN Coated and Uncoated CBN Using CNC Turning

Mallela Gnanesh and Rathinavelu Venkatesh

Abstract

The scope of this study is to evaluate the material removal rate (MRR) of Al-Si7Mg alloy via CNC (Computer numerical controller) turning used with TiCN (Titanium carbon nitride) coated and uncoated CBN (Carbon boron nitride) insert. Al-Si7Mg alloy of 150 mm length and 50 mm diameter was used for this investigation. 20 samples (N = 20) are machined by TiCN coated insert (experimental group) and 20 samples (N = 20) are machined through an uncoated CBN insert (control group). The digital weighing machine is used to find the weight of Al-Si7Mg alloy samples before and after the machining process. The quality of life of MRR of machined samples is measured by ASTM test standard. The experimental study results of MRR on machined Al-Si7Mg alloy samples by TiCN coated insert is 1.801 mm3/min and MRR of uncoated CBN insert found 1.624 mm3/min. G-power 80% calculations with the investigation report generated by the SPSS (Statistical Package for the Social Sciences) statistical tool, TiCN coated insert gives a significant value of 0.001 (p < 0.05). There is a significant difference between the two groups considered. The two-tailed significance value obtained is 0.001 (p < 0.05) which is statistically significant. Within the limitations of this experimental study, the Al-Si7Mg alloy is machined with TiCN coated and uncoated CBN inserts via a CNC turning center. The quality-of-life performed higher MRR as compared to the uncoated CBN insert.

Published on: October 06, 2023
doi: 10.17756/nwj.2023-s3-037
Citation: Gnanesh M, Venkatesh R. 2023. A Novel Evaluation of Material Removal Rate for Al-Si7Mg Alloy Using TiCN Coated and Uncoated CBN Using CNC Turning. NanoWorld J 9(S3): S190-S194.

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