Abstract
Abrasive Jet Machining (AJM) is a non-traditional machining process that removes material from a workpiece using a high-speed stream of abrasive particles carried by air medium. The primary mechanism of material removal in AJM is erosion, making it particularly suitable for cutting and shaping hard and brittle materials such as glass, ceramics, and composites. Unlike conventional machining methods, AJM offers advantages such as minimal heat generation, no tool wear, and the ability to machine intricate shapes with high precision. In this study flexible AJM system with three-axis travel is designed to enhance efficiency and accuracy in machining applications.
The AJM system consists of key components, including a compressor, pressure regulator, dust filter, nozzle, and pressure gauge, each carefully selected based on design calculations to ensure optimal performance. The nozzle plays a critical role in directing the high-velocity abrasive stream, while the pressure regulation system maintains a consistent flow for controlled material removal. By integrating commercially available components, the design prioritizes reliability and cost-effectiveness while minimizing the fabrication of custom parts, which can introduce errors and reduce machine efficiency.This project involves the modeling and development of an AJM system using a combination of hardware and software tools. A structured design approach is adopted to ensure the seamless integration of mechanical. The final AJM model is evaluated for machining accuracy, abrasive efficiency, and operational stability. The results demonstrate that the proposed automated AJM system effectively improves precision and productivity, making it a viable solution for industries requiring non-contact machining of fragile materials. The study provides valuable insights into the optimization of AJM parameters and system design for future advancements in the field.
Introduction
Abrasive Jet Machining (AJM) is the removal of material from a workpiece by the application of a high speed stream of abrasive particles carried in gas medium from a nozzle. The AJM process differs from conventional sand blasting in that the abrasive is much finer and the process parameters and cutting action are carefully controlled.
The process is used chiefly to cut intricate shapes in hard and brittle materials which are sensitive to heat and have a tendency to chip easily. The process is also used for deburring and cleaning operations. AJM is inherently free from chatter and vibration problems. The cutting action is cool because the carrier gas serves as a coolant.
