This paper deals with the cutting MDF, OSB, and plywood boards by abrasive water-jet
(GMA Garnet Australian, grain size 80, MESH = 0.188 mm), with a kerf width depending on the
material properties and technical parameters (material thickness, cutting direction, abrasive flow, and
feed speed). The entry of water-jet cutting in the longitudinal direction produces changes in the
material due to lateral leads spreading the width of the cut joints by an average of 0.20 mm for MDF
boards, 0.3 mm for OSB boards, and 0.17 mm for plywood. On the exit side of the material, the water
has the opposite effect. In relation to the thicknesses of the material, the width of the cut joints
increases. The experiment has shown that the optimum value of the feed speed is explicitly
400 mm.min-1, at which the kerf width reaches thelowest dimensions both at entry and exit, and the
abrasive flow of 450 g.min-1 has been shown as optimum
