| Popis: |
Inconel 718 is a difficult-to-machine alloy due to its low thermal conductivity and high strength at wide temperature range which will cause heat buildup at cutting zone. Several types of cooling techniques have been found. Hence, the aim of this study is to compare different tool design T1 and T2 with different tool geometries and study its effect on the cutting temperature, cutting force, tool life and surface roughness when end milling Inconel 718 under MQL cooling environment. The result showed that cutting tool T2 have lower cutting temperature, cutting force and surface roughness, as well as higher tool life. In conclusion, T2 is better than T1 in terms of machining performance and surface integrity because it has both unequal helix and pitch angles that stabilize the cutting tool during end milling operation. |
