Abstract
The prime aim of this experimental study is to find the material removal rate (MRR) of CBN (Carbon boron nitride) coated and uncoated insert on Al-Si12Cu alloy via a novel computer numeric controlled (CNC) turning center. Al-Si12Cu alloy of 50 mm diameter and 200 mm length was utilized for this study. The samples (N = 20) are turned by CBN coated insert (experimental group) and the uncoated insert is considered as the control group to machining another 20 samples (N = 20). The weight of Al-Si12Cu alloy on both group samples was measured before and after the turning process via a digital weighing machine followed by MRR was calculated as per ASTM standard with 80% G-power calculation. Based on the experimental test results of MRR for the turned Al-Si12Cu alloy by CBN coated insert showed 2.762 mm3/min and 1.781 mm3/min were found 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 compared to the uncoated insert showing the adequacy of the design matrix and there is a significant difference have been between the two groups. Within the limitations of this experimental study, the Al-Si12Cu alloys were turned via CBN coated insert has played a prominent role in the enhancement of MRR rather than the samples turned by the uncoated insert.
doi: 10.17756/nwj.2023-s3-036
Citation: Sumanth K, Venkatesh R. 2023. A Novel Influence of Coated and Uncoated Carbon Boron Nitride on Material Removal Rate for Al-Si12Cu Alloy Using CNC Turning. NanoWorld J 9(S3): S185-S189.