International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 08 Issue: 05 | May 2021 www.irjet.net p-ISSN: 2395-0072 © 2021, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 1940 REVIEW ON FABRICATION OF ABRASIVE JET MACHINE TO STUDY EFFECT OF SiC ABRASIVE PARTICLES ON VARIOUS MATERIALS Asst.Prof.Kamble Kalpesh Sunil. 1 , Sawant Prashant Raghunath 2 , Dhuri Vitthal Ulhas 3 , Sawant Mrunali Santosh 4 , Gawade Tukaram Mahesh 5 1 Assistant Professor of Mechanical Engineering Department, SSPM’s College of Engineering, Kankavli, Maharashtra. 2-5 UG student, Mechanical Engineering Department, SSPM’s College of Engineering, Kankavli, Maharashtra. ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - Abrasive jet machining is nontraditional machining process in which fine abrasive particles are accelerated in carrier gas stream. This high velocity particles are directed towards focus of machining through convergent nozzle. As high speed particles impact surface it causes micro fracture. Erosion is conventionally considered as undesired phenomenon since it damages structures. But in case of abrasive jet machining erosion act as instrument for removing material from work piece. Abrasive jet machining is based on erosion localization and intensification. Since heat generation during abrasive jet machining is very low it is suitable machining heat sensitive materials like silicon, gallium. During abrasive jet machining work piece is subjected to minimum stresses. Key Words: Abrasive jet machining, material removal rate 1.INTRODUCTION Abrasive jet machining involves sizeable amount of cutting edges having indefinite orientation and geometry. In abrasive jet machining failure of one cutting edge does not have effect on method. The main differences which can be perceived while analysing abrasive jet machining and cutting tool machining are the cutting edge geometry and comparative number of chips produced. Since exceedingly thin chips are produced during abrasive jet machining it is possible to focus the machining stress at very local points on the work piece. Due to this characteristics Abrasive jet machining is suitable for deburring of small precision parts that required a burr finish such as medical appliances, hydraulic valve, aircraft fuel systems, surgical needles, bio medical plastic components, and delicate beryllium-copper electronic springs. Abrasive jet machining is best method for deburring small milled slots in hard metallic components, small holes like in hypodermic needles and cavities inaccessible by other means. Due to small cutting forces abrasive jet machining is used for machining of thin, brittle, fragile materials. Abrasive jet machining is used for shallow machining applications such as resistor path in insulators, intricate patterns on silicon semiconductors. Abrasive jet machining is used for engraving permanent mark on materials such as registration numbers on motor car toughened glass windows. Abrasive jet machining is also applicable for cleaning purposes such as removal of oxides on metals, smears on ceramics, and other resistive coating on work material. Abrasive jet machining is useful for cutting of metallic foils, machining of super alloys and refractory materials. Abrasive jet machining is used in micro grit blasting, trimming, bevelling, and frosting of shiny material. Abrasive jet machining system consist of gas propulsion system, mixing chamber, nozzle. To form high velocity abrasive laden air jet, a mixture of abrasive particles and pressurised air is expelled through fine nozzle. After gaining momentum from pressurised air high velocity abrasive particles become capable of eroding target material to generate required part feature by means of micro plastic deformation and/or brittle fracture. 2. Literature Review Wakuda and Yamuchi reported that when softest abrasive such as aluminium oxide is selected, it leads to roughing of the alumina surface but causes no engraving, due to the absence of sufficient abrasive hardness which is required against that of the work piece. Abrasive jet machining with silicon carbide abrasive produce smooth faced dimples, although it exhibits relatively low material removal rates. It was observed that due to elevated temperature during machining, the material response to abrasive impacts indicates a ductile behaviour. Balasubramaniam showed that during deburring of the external burrs by abrasive jet, different edge conditions such as concave radius, convex radius and taper edge were obtained depending on level of parameters jet height and impingement angle. With increase in particle size, the material removal rate at the centre line of jet drastically increases; but increase in material removal rate nearer to periphery is very less. Entry side diameter and entry side edge radius increase with increase in stand-off distance. Increasing stand-off distance also increases material removal rate. Verma and Lal reported that after a threshold pressure the material removal rate and penetration rates increases with nozzle pressure. For brittle material normal impingement results maximum material removal rate and in case of ductile