Magnetic Abrasive Jet Machining (MAJ)

The proposed Magnetic Abrasive Jet Machining (MAJ) technique offers a precise and cost-effective solution for achieving Nano-level surface finish in components used in sectors such as aeronautical, aerospace, defense, and medical. By harnessing the controlled effect of magnetism, particle abrasion, and compressed air, MAJ surpasses traditional methods in terms of speed, precision, and defect-free results. The technique allows for flexibility in manufacturing by easily adjusting parameters through the controller, enabling modifications to the precision level and other requirements.The MAJ process involves the interaction of magnetic brushing, iron particles, compressed air, and magnetic beds. The machining operation occurs in a two-step sequence: 1. Deactivation of the magnetic bed, closing the control valve from the Magnetic Abrasive Particles (MAP) reservoir, and using compressed air to remove dust particles and residual MAPs.2. Activation of the magnetic bed, opening the MAP reservoir control valve, and releasing the mixture of MAPs and compressed air through a nozzle. The particles, magnetically excited, diverge and strike the surface, resulting in increased abrasion effects.By carefully adjusting parameters such as air pressure, particle size, MAP and air mixing ratio, voltage to the magnetic bed, stand-off distance, inter-step timing, and quality of brushing in MAP, the desired surface finish and material removal rate (MRR) can be achieved. The controller regulates pressurized air, timing of magnetic bed switching, and the amount of abrasive material using a control valve. Flexibility is enhanced by an app connected to the controller via the internet, allowing for convenient parameter adjustments. Overall, MAJ presents a novel and efficient approach to precision machining, offering improved surface finish and cost-effectiveness for industries requiring high-precision components.

During the development of the Magnetic Abrasive Jet Machining (MAJ) project, I had the privilege of leading a team of four talented individuals. Together, we successfully participated in CMTI's Design and Innovation Clinic, where our project earned the prestigious recognition of First Runner-Up. This achievement not only highlighted our expertise and dedication but also showcased the effectiveness and potential of the MAJ technique in precision machining.