PT Journal AU Botko, F Hatala, M Mitalova, Z Cep, R Rimar, M Bernat, A Vybostek, J TI Qualitative Evaluation of Machined Surface of Aluminum Alloy AlCu4Mg1 Depend on Feed Rate SO Manufacturing Technology Journal PY 2018 BP 201 EP 207 VL 18 IS 2 DI 10.21062/ujep/78.2018/a/1213-2489/MT/18/2/201 DE Rate; Roughness; Surface Quality; Lathe AB Aim of the article is evaluation of surface quality parameters Rz and Ra after turning of aluminum alloy. Turning is one of the wide spread manufacturing technologies used in industrial production. Experiment was focused on researching of influence of various cutting conditions on machined surface. Main aim of this article is comparison of surface roughness parameters Ra and Rz depending on feed rate and tool nose radius. Investigation and finding of optimal cutting conditions is necessary for economy of manufacturing organization. Despite extensive research carried out in the area of turning, there is always room for new research. ER