Experimental Study of Green High-Speed Turning Nickel-Based Superalloy GH4169

Abstract

Knowing the stringent operating conditions to which superalloys are subjected to in automobile, aerospace and gas turbine industries, the machinability of nickel-based superalloy GH4169 is very poor, the traditional cutting fluids in GH4169 machining pollutes environments. The purpose of this study is to clarify the possibility of the turning in high speed (vc＞50m/min)[1]. In particular, the effects of the overheat water vapor with 130°C as cooling lubricant application were examined, through observation and measurement of the shape of the generated chips, machined surface integrity, cutting force and cutting temperature in a series of experiments with dry cutting or overheat water vapor with 130°C as cooling lubricant. As a result of these experiments, it was possible to measure and confirm the effects of the overheat water vapor with 130°C as cooling lubricant in high speed turning.