An Innovative Study for Tool Wear Prediction Based on Stacked Sparse Autoencoder and Ensemble Learning Strategy

Accurately predicting tool wear in real time is crucial to enhance the tool prognostics and health monitoring system in computerized numerical control (CNC) machining. This paper proposed a novel integrated deep learning model for predicting the wear of milling tools by fusing multi-sensor features....

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Vydáno v:Sensors (Basel, Switzerland) Ročník 25; číslo 8; s. 2391
Hlavní autoři: He, Zhaopeng, Shi, Tielin, Chen, Xu
Médium: Journal Article
Jazyk:angličtina
Vydáno: Switzerland MDPI AG 09.04.2025
MDPI
Témata:
Accuracy
Acoustics
Advanced manufacturing technologies
Artificial intelligence
autoencoder
Big Data
Comparative analysis
Data compression
Decomposition
Deep learning
ensemble learning
Industry 4.0
Information technology
Machine learning
Maintenance and repair
Manufacturing
Measurement
Mechanical wear
Methods
milling
Monitoring systems
multi-sensor fusion
Neural networks
Sensors
Signal processing
Support vector machines
Testing
tool wear prediction
Vibration
China
ensemble learning
deep learning
tool wear prediction
autoencoder
milling
multi-sensor fusion
ISSN:1424-8220, 1424-8220
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Shrnutí:Accurately predicting tool wear in real time is crucial to enhance the tool prognostics and health monitoring system in computerized numerical control (CNC) machining. This paper proposed a novel integrated deep learning model for predicting the wear of milling tools by fusing multi-sensor features. The raw signals of vibration and cutting force acquired from the continuous cutting cycle were used to extract multi-sensor features throughout the full lifecycle of the milling tools in time, frequency, and wavelet domains, respectively. The sensitive features from these signals were identified through correlation analysis and used as input for the stacked sparse autoencoder (SSAE) model with backpropagation neural network (BPNN) as the regression layer to predict tool wear. SSAE models with different activation function configurations of hidden layers were utilized to construct deep neural network models with different prediction performance, which were taken as primary learners of integrated deep learning model. The intergrated SSAE model based on the stacking learning strategy applied the gradient boosting decision tree (GBDT) regression model with Bayes optimized hyperparameters as the secondary learner to predict tool wear. Compared to the single SSAE model and shallow machine learning models, the proposed method significantly improved both the prediction accuracy and reliability.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s25082391