Автор: Štefan Barcík
- INNOVATION OF CNC MACHINERY PROGRAMMING EDUCATION AT THE FACULTY OF TECHNOLOGY
The paper describes the educational project ending in 2020, which is focused on increasing the quality of teaching and making the study more attractive by introducing new selective courses: CNC technology in bachelor study programs and Programming of CNC technology in engineering study programs at the Faculty of Technology of the Technical University in Zvolen, Slovakia. The solution of the project is also to create a background for building a CNC machining workplace. The article summarizes the educational machinery for teaching especially milling operations. Teaching programming takes place in professional CNC emulators that are commonly used in praxis. These emulators allow program debugging, tests, trajectory drawing and optimising and collision checking of tool and workpiece. Altogether 23 students successfully completed the introduced course. Within the project solution, 5 theses were defended.
Ключови думи: CNC programming, CNC simulators, teaching, innovation, workplace building
- ANALYSIS OF FACTORS EFFECTING ON QUALITATIVE PARAMETERS OF SURFACE WHEN PLANAR MILLING HEAT–TREATED OAK WOOD
This article deals with the experimental examination of the temperature influence of heat–treated oak wood in terms of quality of the machined surface, as well as analysis of the impact of monitored independent parameters: cutting speed, feed rate, material, angular geometry of the tool, on dependent parameters representing surface treatment quality (Ra – mean arithmetic roughness) in flat milling of thermally modified oak wood (T = 160°C, 180°C, 200°C, 220°C), and their comparison with native wood. The roughness measurement was carried out by non–contact method.
Based on experimental measurements, the effect of the observed factors on surface quality was determined in this order: used type of cutting tool, thermal modification, cutting speed, feed rate, rake angle.
Ключови думи: surface roughness, plane milling, ThermoWood®, quality of machining