This paper deals with the cutting MDF, OSB, and plywood boards by abrasive water-jet ud(GMA Garnet Australian, grain size 80, MESH = 0.188 mm), with a kerf width depending on the udmaterial properties and technical parameters (material thickness, cutting direction, abrasive flow, and udfeed speed). The entry of water-jet cutting in the longitudinal direction produces changes in the udmaterial due to lateral leads spreading the width of the cut joints by an average of 0.20 mm for MDF udboards, 0.3 mm for OSB boards, and 0.17 mm for plywood. On the exit side of the material, the water udhas the opposite effect. In relation to the thicknesses of the material, the width of the cut joints udincreases. The experiment has shown that the optimum value of the feed speed is explicitly ud400 mm.min-1, at which the kerf width reaches thelowest dimensions both at entry and exit, and the udabrasive flow of 450 g.min-1 has been shown as optimum.
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