High speed milling processes with long oblique cutting edges

High speed end milling processes using an inclined end mill with long oblique end teeth was investigated to minimize the scallop height of the finished surface. The optimal cutting conditions were found to improve the tool life and machining accuracy. According to the results of cutting tests, the cutting force decreased with increasing cutting speed due to the change in chip formation. Although the cutting temperature increased with cutting speed, it was found that the change in the tool wear mechanism with cutting speed minimized the tool wear at a higher cutting speed. Moreover, although the surface roughness of the machined surface deteriorates due to the tool wear when cutting length is increased, it is found that the deflection of the tool increases due to the increase of cutting forces and it improves the surface roughness.