Investigation on effect of process parameters in abrasive Jet Machining process using full factorial design

Abrasive Jet Machining (AJM) process is one of the unconventional machining process used to cut various materials including soft and hard materials. Alumina and silica are majorly used as abrasive materials due to its chemical and abrasion resistance. In this paper, abandoned Ceramic Sanitary Ware (CSW) wastes are used as abrasive materials in AJM process. Since, CSW wastes contain major amount of alumina and silica compositions. Initially, ball milling machining process is carried out to convert CSW wastes into micro particles. Then, sieving is performed to segregate the particles with its size. Stand of distance, pressure and particle size are considered as most influencing parameters in AJM process. Hence, Full Factorial design is utilized for three process parameters and three levels. The nozzle with a mixing chamber is designed and fabricated to perform drilling operation in the glass work piece. L27 experiments are carried out to evaluate Material Removal Rate (MRR) and Hole Diameter (HD) during drilling process of glass work piece. Further, the effect of each process parameters on MRR and HD is validated. From the analysis, it is found that pressure is most influencing parameters affecting MRR whereas HD greatly depends on particle size.