Design And Optimization of an Abrasive Jet Machine

Abstract Abrasive Jet Machining (AJM) is a non-traditional machining process used for machining hard, brittle, and heat-sensitive materials where conventional methods are not effective. In this process, a high-velocity stream of fine abrasive particles is directed towards the workpiece through a nozzle, resulting in material removal by erosion. AJM is widely used in industries such as aerospace, nuclear, and electronics for precision machining applications. This project focuses on the design, fabrication, and working of an Abrasive Jet Machine. It highlights the importance of AJM in achieving high accuracy, better surface finish, and the ability to machine complex shapes. The system consists of major components such as a compressor, mixing chamber, nozzle, abrasive feeder, and control unit. The performance of the machine depends on various parameters like abrasive size, pressure, nozzle distance, and type of material. AJM is particularly suitable for operations like cutting, drilling, deburring, cleaning, and engraving of materials such as glass, ceramics, and superalloys. The study concludes that AJM is an efficient, versatile, and economical process for precision machining, especially for materials that are difficult to machine using conventional methods Keyword Abrasive Jet Machining (AJM), Non-Traditional Machining, Material Removal Rate (MRR), Surface Roughness, Abrasive Flow Rate, Nozzle Wear, Stand-off Distance (SOD), Process Optimization, Taguchi Method, Response Surface Methodology (RSM), Micro-Machining.