A study of the flow characteristics in micro-abrasive jets

On DEM–CFD study of the dynamic characteristics of high speed micro-abrasive air jet

“…The distribution for the different nozzle diameters and air pressure considered is thus a negative skewed distribution rather than a Gaussian normal distribution. In comparison to the experiments carried out by Fan et al [32], the histogram of predicted particle velocities is shown to be in good agreement with the histogram of measured particle velocities.…”

Effect of Slurry Temperature on Kerf Taper Angle in Abrasive Water Jet Machining

“…On inclining the work piece, one wall would be closer to the axial velocity component of the jet velocity in comparison to the other wall and for this wall, the major material removal is due to axial velocity component, while the other wall is primarily eroded due to radial velocity component of the jet. It has been discussed earlier also that axial velocity component is greater than radial component and upper width of the cut is dependent on of the nozzle diameter [10]. Fig.…”

Semi-resolved CFD-DEM modeling of gas-particle two-phase flow in the micro-abrasive air jet machining

“…AAJ machining utilizes pressurized air to accelerate abrasive particles through a fine nozzle to form a jet of high-speed particles. The abrasive airjet impinges the workpiece surface for mechanically etching required part features such as micro-channels and micro-holes into the target material [4]. In the AAJ machining process, the comprehensive understanding of the erosion process enables the development of more accurate models for the erosion rate and surface integrity, etc., as a function of process and material variables [4].…”