μLL cutting of Inconel718

Abstract

Micro little lubrication (μLL) cutting (MQL cutting in the case that oil supply was less than 1ml/h) was applied to finish-turning of a nickel-base superalloy, Inconel 718. From the experimental result and the flow analysis using a general purpose code of computational fluid dynamics, it is shown that blowing the oil mist to the cutting point from the minor flank side is the effective method to prevent the progress of tool wear at decreased rate of oil mist supply.