Algorithm

Speech coding

Ensemble learning

Metallurgy

Materials science

Fast Fourier transform

Component (thermodynamics)

Computer science

Tool wear

Audio signal

Thermodynamics

Cutting tool

Physics

Pattern recognition (psychology)

Artificial intelligence

Machining

Deep learning

Convolutional neural network

Machine learning

Speech recognition

Journal of Manufacturing Processes

Tool wear is an important parameter in the machining because the production, cost and performance is highly depend upon its performance. Therefore, the monitoring of cutting tool wear plays an important role in mechanical machining processes. With this aim, the present work deals with the application of novel ensemble deep learning model for cutting tool wear monitoring using audio sensors. The tool wear data during machining was extracted with an audio denoising technique combined with Fast Fourier Transform (FFT) and bandpass filters and dependent component analysis (DCA). Then, the ensemble convolutional neural networks (CNN) detection model was trained and audio signals were converted into audio images with different algorithms. Finally, the results confirm that this novel method is very accurate to predict the tool wear values under different cutting conditions.

A novel ensemble deep learning model for cutting tool wear monitoring using audio sensors