Inconel 800H has got wide applications due to its resistance to high temperature, corrosion. Because of its poor machinability to process it, among nontraditional processes abrasive water jet machining is commonly used. Abrasive Water Jet Machining (AWJM) of Inconel 800H has commercial significance due to its good machining characteristics. In the present paper an attempt has been made to optimise machining parameters employed in Abrasive Jet Machining of Inconel 800H using Taguchi method. The approach used is based on the analysis of variance and signal to noise ratio (SN Ratio) to optimize the AWJM process parameters for effective Material Removal Rate (MRR) and Surface Roughness (SR). Important AWJM machining parameters such as water pressure, focussing tube size, traverse speed & abrasive flow rate were predicted for optimised MRR and SR. It was confirmed that determined optimal combination of AWJM process parameters satisfy the real need for machining of Inconel 800H in actual practice.
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Reddy et al. (2014) studied this question.