Minimising particle contamination at abrasive waterjet machined surfaces by a nozzle oscillation technique

Abrasive waterjet cutting of a titanium alloy: The influence of abrasive morphology and mechanical properties on workpiece grit embedment and cut quality

“…According to Chen et al (2002), this contamination of the surfaces may generate serious problems with the further treatment of these surfaces, such as grinding, welding or coating. Embedded grit may also act as a fatigue crack initiator; Singh and Jain (1995) compared the fatigue behaviour of materials when through-cut by both laser and AWJ.…”

Application of Silicon Carbide in Abrasive Water Jet Machining

“…Although particle embedment is a shortcoming of this technology, it can be minimized by controlling the machining parameters. However, it was reported that if the nozzle is oscillated during AWJM, then contamination reduces to a great extent (Chen et al, 2002 andSiores et al, 2006). The present study presents the influence of machining parameters on surface contamination of mild steel.…”

Soluble Abrasives for Waterjet Machining

“…Surfaces with embedded grit are known to exhibit poor fatigue behaviour compared with those without it due to the grit acting as a fatigue crack initiator [4]. In addition embedded grit may also generate serious problems for future manipulation and treatment of these surfaces, such as in welding or coating [5]. In some cases waterjet may be used for removal of unwanted surface layers that present possible surface integrity issues for components, for example in the case of Alpha case removal from superplastically formed titanium alloys [6].…”