Abrasive Waterjet Nozzle

The abrasive waterjet nozzle contains a 0.030 in. (0.762 mm) replaceable mixing tube, 0.008 in. (0.2032 mm) replaceable (drop-in) orifice assembly, and nozzle body. High-pressure water is forced through the orifice and enters into a larger mixing chamber, drawing the garnet abrasive from the abrasive feed tube. The water and garnet abrasive is mixed into a high-speed slurry, and then moves into the mixing tube to form the abrasive waterjet stream. The abrasive waterjet stream exits the mixing tube through the bottom of the nozzle to strike and remove the material being machined.

Figure 107  

[1] Nozzle inlet body assembly	[4] Garnet abrasive inlet	[7] Mixing tube retainer	[10] Nozzle body weep hole
[2] Inlet body weep hole	[5] Nozzle body assembly	[8] Mixing chamber	[11] Inlet body O-ring
[3] Nozzle filter	[6] Mixing tube	[9] Orifice assembly