Machining of Inconel 718 Using by Taguchi Methodology with Abrasive Water Jet Machining Parameters
Fuat KARTAL Hasan GÖKKAYA Refik POLAT
AbstractInconel 718 is commonly sought after for its resistance to high temperature and corrosion, however, these characteristics reduce the machinability of this material which brings forth the AWJ machining, a non-conventional material removal process, as the ideal option. The use of Abrasive Waterjet (AWJ) machining for Inconel 718 offers desired machining characteristics, therefore, has a commercial significance. The objective of this study is to optimize input parameters of AWJ machining involved in AWJ machining of Inconel 718 using the Taguchi technique. Optimization of AWJ machining parameters was conducted based on the analysis of variance (ANOVA) and Signal-to-Noise (S/N) Ratio analysis in order to obtain effective Surface Roughness and Material Removal Rate. AWJ machining parameters such as abrasive flow rate, focusing tube size, traverse speed and water pressure were calculated for optimized Surface Roughness and Material Removal Rate. It was concluded that the optimal AWJ machining parameters found in this study are satisfactory for the actual/commercial machining of Inconel 718.