The main topic of the paper is the roughness analysis of machined surfaces shaped parts and influences that affect them. Specifically, it is an analysis of selected 2D and 3D roughness parameters by using the 3-axis, 3+2-axis and 5-axis milling methods. In order to analyse the life of components and performances, the key requirement is the evaluation of surface roughness. In terms of 2D roughness, the most widely used parameters are Ra, Rz and Rq. In the case of 3D roughness, namely Sa, Sz and Sq parameters. The current trend leads to continuous improvement measurement methods and instruments. Evaluation of Surface roughness involves various contact and noncontact methods. For this experiment, the material of aluminium alloy EN AW-6060 – AlMgSi0, 5 F19 was chosen. Sample sizes 40x40x25mm were selected. Samples were made on a universal 5-axis milling machine DMG MORI specifically DMU 50 with the Heidenhain iTNC 530 control system. The Milling centre is located in the laboratories of the Department of Machining, Assembly and Engineering Metrology of the Technical University of Ostrava. Surface roughness analysis was performed on a three-dimensional Alicona InfiniteFocus G5 microscope. With this optical meter, the surface topography was analysed in view of 2D and 3D surface roughness and waviness.Keywords: Surface roughness, multiaxis milling
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