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EN
The article presents a comparison of three trochoidal paths: written by G-Code, generated using the overlays from the machine level, and generated using the CAD/CAM environment. The parameters determining the effectiveness of the process were: maximum achievable feed speed, surface roughness and waviness, cutting forces and cutting temperature when milling NC6 steel (50HRC) using a 10 mm cutter dimeter. The main measurement results include: an increase in the maximum feed speed value by almost 35% when using the A and C paths compared to the type B path and nearly a double increase in surface roughness when using the path generated using the CAD/CAM environment compared to the B path. The most important conclusions was that it is not always possible to machine with the recommended parameters by the tool manufacturer, especially when machining narrow grooves. It was proven that that the use of paths with the displacement described by arcs and straight lines as a trochoidal step over reduces the possibility of milling at high feed rate.
EN
The article presents the results of machining materials in hardened state. In the paper, different trochoidal tool paths are compared with each other and with the conventional milling. The results of measurements show the relationship between tool path, roughness and waviness of grooves wall. The paper also presents pictures of grooves which were made. These results provide comparative material useful in the choice of the best milling strategy to the cutting process.
3
PL
Wyznaczono oraz przeanalizowano opory skrawania w procesie konwencjonalnego i trochoidalnego frezowania stopu aluminium 2017. Opracowano strategię obróbki i wytyczne do badań oraz zaprezentowano możliwość wykorzystania platformy pomiarowej bazującej na elementach tensometrii oporowej. Przedstawiono analizę wyników obejmujących rozkład składowych sił skrawania w procesach frezowania konwencjonalnego i trochoidalnego, realizowanych przy tych samych parametrach skrawania i tymi samymi narzędziami. Podjęto próbę interpretacji wyników.
EN
Cutting forces in the process of conventional and trochoidal milling of aluminum 2017 alloy were determined and analyzed. A machining strategy, testing guidelines and the possibility of using a measuring platform based on resistance tensometry elements were developed. The paper also presents an analysis of the results concerning the distribution of the cutting forces in the processes of conventional and trochoidal milling, carried out with the same cutting parameters and tools. An attempt was made to interpret the results.
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