RT Journal Article SR Electronic A1 Müller, Miroslav A1 Valášek, Petr T1 Research on Aluminium Alloy AlCu4Mg Surface Machined by Abrasive Water Jet JF Manufacturing Technology Journal YR 2017 VO 17 IS 6 SP 925 OP 930 DO 10.21062/ujep/x.2017/a/1213-2489/MT/17/6/925 UL https://journalmt.com/artkey/mft-201706-0020.php AB The paper deals with a machining of the aluminium alloy by means of an unconventional technology, i.e. an abrasive water jet (AWJ). The paper deals with a study of an influence of the abrasive water jet at its impact on a surface of the machined material, i.e. the aluminium alloy AlCu4Mg of a thickness 20 mm. A topography of the machined surface is evaluated within the research by means of roughness parameters. A surface analysis is also evaluated by means of a scanning electron microscopy (SEM) depending on a cutting speed and a mass flow of the abrasivum. The research results proved an increased influence of the cutting speed and the mass flow of the abrasivum. The optimum cutting speed was 50 mm.min-1, the cut was uniform without a significant grooved zone typical for cuts by means of AWJ technology.