Abrasive Jet machining is an unconventional machining process, unconventional means there is no physical contact between tools and the workpiece.
Principle
Principle behind the abrasive jet machining is very simple, a stream of jet is used for machining. Jet of air or water mixed with fine abrasive materials strikes the workpiece and in this way machining is done.
Construction
Abrasive jet machine have components as listed below:
- Gas cylinder,
- Filter,
- Pressure regulator,
- Abrasive chamber,
- Vibrator,
- Handle,
- Nozzle.
Working
Gas cylinders contains gas which is carried out by pipes, passing away from filter, which separates the dust particles and the pressure regulator is used to maintain the required gas pressure, then the gas collects in chamber where fine abrasive particles (50micron) are present. Here gas mixes with abrasive and a vibrator is connected to the chamber for better mixing which vibrates at 50c/s. Then this mixture is carried to the nozzle which concentrates the mixture at the workpiece and erodes the material from the workpiece.
Material removal rate of abrasive jet machining is quite high as compared to conventional machining.
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