Abstract
As the aviation along with automobile industrial units require high finish with precise surface, so the machining process tends to focus about the machined part surface integrity having lower cost with less tool wear. Aluminium and Al-alloys are the most suitable ones due to their peculiar properties for these requirements.. Here the dry turning of pure aluminium has been attempted using advanced tools like uncoated WC, WC + TiN, WC + Ti(C,N) +Al2O3 and PCD by using speed range from 400 to 700 m/min along with variation in feed rate. The highly precised Surtonic S-128 roughness tester was used to measure surface roughness while SEM (Scanning Electron Microscope) was utilised to observe chip shear band formation and tool wear. The Elemental mapping technique was used to analyse adhesion. The different results show that PCD tools are more suitable than other coated tools for the machining of Al.
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