Venkat Ramana Yeruva
Independent Researcher
India
Abstract
The surface finish quality of machined components is a critical factor in determining their functional performance and aesthetics. In CNC milling, tool geometry significantly influences the surface finish, affecting parameters such as tool nose radius, helix angle, rake angle, and flute number. This study investigates the effect of these tool geometry parameters on the surface roughness of aluminum alloy components machined by CNC milling. Experimental trials were conducted using different tool geometries, and surface roughness measurements were taken using a surface profilometer. Statistical analysis was performed to evaluate the influence of each geometry parameter on surface finish. Results indicate that larger tool nose radius and optimized helix angle lead to improved surface quality, whereas the rake angle and flute number exhibit moderate effects. The findings provide valuable guidelines for selecting milling tool geometries to achieve superior surface finishes in CNC machining operations.
Keywords
CNC milling, tool geometry, surface finish, surface roughness, tool nose radius, helix angle, rake angle, flute number
References
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