Study on the influence of the working regime on the quality of cut in the case waterjet processing of S 235 steel

The current paper presents the influence of different working regimes on the quality of cuts performed by abrasive water jet processing on S 235 steel. Four process parameters were varied: pressure (P), feed rate (Vf), quantity of abrasive material (Q) and distance between the cutting head and workpiece (h). Four quality parameters were analysed: width of the processed surface at the jet inlet ( Li), width of the processed surface at the jet outlet (Lo), inclination angle of cut (alpha) and surface roughness (Ra). The analysis was done for three material thicknesses: 1mm, 6.5mm and 10mm.