APPLICATION OF OPTIMIZATION METHODS ON ABRASIVE JET MACHINING OF CERAMICS

摘要

In this paper, Taguchi method is applied to find optimum process parameter for Abrasive jet machining. Abrasive jet machining is a modern machining process in which the Metal Removal takes place due to the impact of High Pressure, High Velocity of Air and Abrasive particle (Al_2O_3, Sic etc.) on a work piece. Experimental investigation were conducted to assess the influence of Abrasive jet machining process parameters on MRR and Kerf of fibre glass. The approach was based on Taguchi's method and analysis of variance to optimize the AJM process parameters for effective machining and to predict the optimal Values for each AJM parameter such as pressure, standoff distance, Abrasive flow rate and Nozzle diameter. For each combination of orthogonal array we have conducted four experiments and with the help of ANOVA it is found that the process parameters have a significant influence on metal removal rate and Kerf. The Experimental analysis of the Taguchi method identifies that, in general the Pressure significantly affects the MRR while, Stand of distance affects the Kerf. Experiments are carried out using (L16) orthogonal array by varying pressure, standoff distance, Abrasive flow rate and Nozzle diameter respectively.