Innovative comparison of coated carbide drill bit against HSS drill bit to minimize surface roughness in the novel CNC drilling of magnesium alloy/silicon carbide composite

• Main Authors: Karthik, A., Muniappan, A.
• Format: Conference Proceeding
• Language: English
• Subjects: Carbide tools; Confidence intervals; Control equipment; Drill bits; Drilling; Group theory; Magnesium alloys; Magnesium base alloys; Silicon carbide; Statistical analysis; Statistical significance; Surface roughness
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0233059

This research examines the differences and similarities between coated carbide drill bits and HSS drill bits, two typical tools used in new CNC drilling methods. The goal of this research is to minimise the surface roughness of composites. Methodologies and Instruments for Research: A stir casting procedure that comprised 5 percent SiC and 95 percent magnesium alloy was used to generate the work material for the study that was conducted on the revolutionary CNC drilling technology. One of the groups was the control group, which was made up of HSS, while the other group was the group that was given coated carbide (experimental group). In order to establish the sample size, the G power calculation was performed using an alpha of 0.05 and a confidence interval of 95 percent. The percentage of confidence was set at 80 percent. In both the control group and the experimental group, there were nine people in the sample. According to the findings of the tests, the surface roughness of HSS was measured to be 3.7 µm, whereas the surface roughness of carbide was found to be 2.5 µm. At a confidence level of 95 percent, the difference was found to be statistically significant (p=0.001; p