Analysis and prediction of the impact of technological parameters on cutting force components in rough milling of AZ31 magnesium alloy

This paper presents the results of experimental study of the AZ31 magnesium alloy milling process. Dry milling was carried out under high-speed machining conditions. First, a stability lobe diagram was determined using CutPro software. Next, experimental studies were carried out to verify the stability lobe diagram. The tests were carried out for different feed per tooth and cutting speed values using two types of tools. During the experimental investigations, cutting forces in three directions were recorded. The obtained time series were subjected to general analysis and analysis using composite multiscale entropy. Modelling and prediction were performed using Statistica Neural Network software, in which two types of neural networks were applied: multi-layered perceptron and radial basis function. It was observed that milling with high cutting speed values allows for component values of cutting force to be lowered as a result of the transition into the high-speed machining conditions range. In most cases, the highest values for the analysed parameters were recorded for the component F-x, whereas the lowest were recorded for F-y. Additionally, the paper shows that a prediction (with the use of artificial neural networks) of the components of cutting force can be made, both for the amplitudes of components of cutting force F-amp and for root mean square F-rms.

Automated summary

This study investigates the milling process of AZ31 magnesium alloy through dry milling experiments. It shows that milling with high cutting speed can reduce the values of cutting force components and transition into high-speed machining conditions range. Predictions of cutting force components using artificial neural networks, including amplitudes and root mean square, can be made based on the experimental results.