Validation of Experimental Work by Using Cubic Polynomial Models For Sea Sand as an Abrasive Material in Silicon Nozzle in Abrasive Jet Machining Process

Abstract

Nozzle is most important and critical part of in machining process of Abrasive Jet machine. Silicon nozzle with high wear resistance in this process. The erosion rate is depend upon variable pressure and standoff distance. In this experimental investigation sea sand is using as abrasive material first time for erosion process in Abrasive Jet machining process. The material removal rate at different condition were calculated by changing pressure and standoff distance. The study of work surface found to be 0.0289 gm/sec and at the pressure 5kg/cm2. The analysis of 95% prediction bound of the silicon carbide has generated cubic polynomial model and R square value is 0.9897 which is very closed 1. The value obtained of MRR experimentally and after the calculation is within the limit and percentage of error is very less. The relative hardness of abrasive against targeted material which is not taken into consideration of model. The depth of cutting hole type are 4mm to 6mm. on glass work piece. In contrast to conventional erosion from some studies elaborated by using abrasive water jet machine and no detailed investigation were carried out about sea sand as an abrasive material.