Análise de vibração no torneamento interno utilizando ferramentas com relação comprimento diâmetro alta

Abstract

This paper aims the understanding of vibrations during internal turning processes. Tools with great length in balance are more likely to present self exited vibrations during machining. Tests conducted for obtaining data were performed using microphones and loading platforms. This data are used to survey a chart of stability. The material machined is brass. An open source MATLAB toolbox was used for data acquisition and analysis. It was possible to observe that during the unstable processes, the vibrations occurs in the natural frequency of the system. Measurement data of cutting forces during machining are recorded by the loading platform. Mathematical analysis are performed in the time domain, using the interactive Euler method to compare the test results obtained. This modeling is done using MATLAB software. Results from tests were compared with simulations, seeking to evaluate the fidelity of the model and justify divergent results.