514
K. Balaji and N. Yuvaraj
Table 1 AWJM process parameters and their levels
Item
Description
AWJM system
Injection type nozzle
Type of pump
Intensifier pump
Abrasive feeding system
Automatic type vibratory conveyor
Abrasive particle shape
Angular (random)
Pressure
3200 bar
Mesh number
#80
Orifice diameter
0.25 mm
Nozzle diameter
0.75 mm
Jet impact angle
90°
Thickness of the work material
30 mm
Feed rate
20 mm/min
Abrasive flow rate
0.45 kg/min
Mixture ratio
60:40 (garnet: SiC)
Fig. 2 AWJ drilling
operation
such as surface roughness, circularity, and cylindricity. The surface roughness was
taken using the contact type roughness tester. A roughness measurement was made
with a cut-off length of 0.8 mm and a traverse length of 4 mm. Hole geometrical
features, namely, circularity and cylindricity were examined using the coordinate
measuring machine (CMM).
K. Balaji and N. Yuvaraj
Table 1 AWJM process parameters and their levels
Item
Description
AWJM system
Injection type nozzle
Type of pump
Intensifier pump
Abrasive feeding system
Automatic type vibratory conveyor
Abrasive particle shape
Angular (random)
Pressure
3200 bar
Mesh number
#80
Orifice diameter
0.25 mm
Nozzle diameter
0.75 mm
Jet impact angle
90°
Thickness of the work material
30 mm
Feed rate
20 mm/min
Abrasive flow rate
0.45 kg/min
Mixture ratio
60:40 (garnet: SiC)
Fig. 2 AWJ drilling
operation
such as surface roughness, circularity, and cylindricity. The surface roughness was
taken using the contact type roughness tester. A roughness measurement was made
with a cut-off length of 0.8 mm and a traverse length of 4 mm. Hole geometrical
features, namely, circularity and cylindricity were examined using the coordinate
measuring machine (CMM).