Parametric Optimization of Abrasive Water Jet Cutting during Machining of AISI4140 steel

Abstract

Abrasive water jet Machining (AWJM) is one of the widely used non-traditional machining process. It is capable of
machining geometrically complex and hard material components, that are precise and difficult-to-machine such as heat-treated
tool steels, composites, super alloys, ceramics, carbides, heat resistant steels etc. being widely used in die and mould making
industries, aerospace, and aeronautics industries. In present study, Experimental investigations were conducted to assess the
influence of process parameters like Abrasive mass flow rate(gm/min), traverse speed (mm/min) and Stand of Distance (mm) on
Material Removal Rate (mm3
/min) and Surface Roughness (μm) of AISI 4140 steel. Here, using garnet and Aluminium oxide
mixer as an abrasive material. The optimization for Abrasive water jet Machining process parameters of AISI 4140 Steel work
piece using Taguchi method will done. Thirty-two experimental runs (L32) based on an orthogonal array Taguchi method will
performed and investigate the effect of Abrasive water jet cutting process parameters like Abrasive size (mesh). Abrasive mass Flow
Rate (gm/min), Traverse speed (mm/min) and Stand of Distance (mm) on Material Removal rate, Surface Roughness and Kerf
width. The MRR, SR and kerf width were measured for each specimen after AWJC and the effects of these parameters were
researched.