Enhancing the Performance Measures of Abrasive Water Jet Machining on Drilling Acrylic Glass Material

Abrasive Water jet Machining finds its application on extensive range of materials. Both ductile and brittle materials can be machined by this process, but the material removal is different in both the cases, i.e., by Ductile fracture and Brittle fracture respectively. When it comes to brittle materials, conventional machining processes cannot be used due to a number of limitations of the material. Thus, non-conventional machining is a rather preferable choice for brittle materials. However, the quality of machining might vary, as it is dependent on some input parameters such as — Abrasive size, Water jet Pres-sure and Abrasive Flow rate. The quality of the machining for a drilling operation is evaluated based on the hole parameters i.e. — Circularity, Taper ratio, Overcut and Material Removal Rate (MRR). The process parameters are varied in accordance to the desirable outcome to be obtained. Outcomes like MRR and circularity are required to be maximized, whereas Taper ratio and Overcut have to be minimized. The effects and interactions between different parameters on the outcomes are studied using Analysis of Variance (ANOVA).