Abrasive jet machining is a non-traditional machining process that uses a high-velocity stream of abrasive particles suspended in a liquid to remove material from a workpiece. It involves mixing abrasive particles with compressed air or water in a mixing chamber before passing the mixture through a nozzle at high velocity onto the workpiece. Common applications include cleaning, drilling, turning, cutting, and engraving. The process provides benefits such as automatic surface cleaning, low equipment costs, and eco-friendliness but suffers from low material removal rates and inability to reuse abrasives. Overall, abrasive jet machining continues to expand due to new software reducing costs and making it accessible to more manufacturers of precision parts.

1. ADARSH S
REG NO : 16020131
ROLL NO : 6
S5 MECHANICAL

2.  It is the process of removing material by
using high velocity stream of air/gas or
water and abrasive mixtures.
 Abrasive particles should have high metal
removal rate and accuracy.
 High velocity jet is used to remove metal
from work piece.

3.  FILTER
 COMPRESSOR
 PRESSURE GAUGE AND FLOW
REGULATOR
 MIXING CHAMBER
 HOPPER
 VIBRATOR
 NOZZLE
 ABRASIVE JET

4.  It is usually made of TUNGSTEN CARBIDE.
 It has resistance to wear.
 It provide efficient mixing of abrasives and
water jet.
 It helps to increase the velocity of the mixture.

5.  It compresses the air to a pressure of 15-20 bar.
 Compressor unit also consist of drier and
filter.
 It removes water vapour and dust particles to
avoid condensation .

6.  Pressure gauge is used for measuring pressure
of air as well as gass abrasive mixture.
 Flow regulator controlls volume flow rate of air
to maintain constant mixing ratio.

7.  In AJM circular hopper is employed for
continuously supplying fresh abrasive to the
mixing chamber.
Mixing chamber
 It mixes abrasives with pressurized air inside
the chamber .
 A vibrator is used to obtain a homogeneous
mixing.

9.  High pressure water starts at the pump and is
delivered through special high pressure
plumbing to the nozzle.
 At the nozzle abrasive mixtures are
introduced and cutting is performed.
 The nozzle increases the velocity of the
mixture at the expense of its pressure.
 The jet is used to remove unwanted material
from the work piece.

10.  Different types of abrasive are used in
abrasive jet machining like garnet , aluminum
oxide , olivine , silica sand , silicon carbide ,etc .
 Abrasive particles must be hard ,high
toughness, irregular in shape & edges should
be sharp .

11.  Paint removal
 Cleaning
 Drilling
 Turning
 Cutting
 Engraving

13.  Surface of the workpiece is cleaned
automatically.
 Smooth surface finish can be obtained.
 Equipment cost is low.
 Less vibration.
 No heat generation.
 Eco friendly.
 Easy of operation
 No skilled labour is required

14.  Low metal removal rate.
 Abrasive powder cannot be reused.
 Taper is also a problem.
 Nozzle life is less.
 Nozzle should be maintained periodically

15.  The better performance and the applications
represented above statement conform that AJM
is continue to expand .
 The new softwares used to minimize time and
investment there by making it possible for
more manufacturers of precision parts to install
AJM centers.

16.  Texas Airsonics, archived from the orginal on
March 4, 2012.
 Boothroyd, Geoffrey; Knight, Winston
(1989), Marcel Dekker, pp. 478–9,
 Todd, Robert H.; Allen, Dell K.; Alting, Leo
(1994),, Industrial Press Inc., pp. 2–5,
 Chastagner, Matthew W.; Shih, Albert J.
(2007), Transactions of NAMRI/SME, 35: 359–
366.