Sensors, Vol. 24, Pages 2652: Machine Tool Wear Prediction Technology Based on Multi-Sensor Information Fusion

Sensors, Vol. 24, Pages 2652: Machine Tool Wear Prediction Technology Based on Multi-Sensor Information Fusion
Sensors doi: 10.3390/s24082652
Authors:
Kang Wang
Aimin Wang
Long Wu
Guangjun Xie

The intelligent monitoring of cutting tools used in the manufacturing industry is steadily becoming more convenient. To accurately predict the state of tools and tool breakages, this study proposes a tool wear prediction technique based on multi-sensor information fusion. First, the vibrational, current, and cutting force signals transmitted during the machining process were collected, and the features were extracted. Next, the Kalman filtering algorithm was used for feature fusion, and a predictive model for tool wear was constructed by combining the ResNet and long short-term memory (LSTM) models (called ResNet-LSTM). Experimental data for thin-walled parts obtained under various machining conditions were utilized to monitor the changes in tool conditions. A comparison between the ResNet and LSTM tool wear prediction models indicated that the proposed ResNet-LSTM model significantly improved the prediction accuracy compared to the individual LSTM and ResNet models. Moreover, ResNet-LSTM exhibited adaptive noise reduction capabilities at the front end of the network for signal feature extraction, thereby enhancing the signal feature extraction capability. The ResNet-LSTM model yielded an average prediction error of 0.0085 mm and a tool wear prediction accuracy of 98.25%. ...

Source: Sensors - April 21, 2024 Category: Biotechnology Authors: Kang Wang Aimin Wang Long Wu Guangjun Xie Tags: Article Source Type: research