Influence of Abrasive Water Jet Parameters on Steel Surface

Descaling is a recent application of abrasive water jet machining. Several parameters can affect the steel surface and influence the descaling effect of abrasive water jet machining. The influence of the jet parameters has been experimentally studied, and the width of the surface morphology and roughness measured. The results show that the descaling width increases as the jet distance increases from 10 mm to 90 mm; the material removal at the cross section tends to be uniform. As the abrasive particle size is increased from 75 mu m to 150 mu m, the descaling width decreases whereas the material removal uniformity increases. Increasing the jet pressure from 30 MPa to 70 MPa increases the descaling width and material removal; the surface roughness improves to some extent, but the descaling uniformity decreases. As the jet angle is increased from 30 degrees to 90 degrees, the uniformity of the material removal decreases despite the increase in the descaling width.