Abstract
An effective strategy to predict the remaining useful life (RUL) of a cutting tool could maximise tool utilisation, optimise machining cost, and improve machining quality. In this paper, a novel approach, which is enabled by a hybrid CNN-LSTM (convolutional neural network-long short-term memory network) model with an embedded transfer learning mechanism, is designed for predicting the RUL of a cutting tool. The innovative characteristics of the approach are that the volume of datasets required for training the deep learning model for a cutting tool is alleviated by introducing the transfer learning mechanism, and the hybrid CNN-LSTM model is designed to improve the accuracy of the prediction. In specific, this approach, which takes multimodal data of a cutting tool as input, leverages a pre-trained ResNet-18 CNN model to extract features from visual inspection images of the cutting tool, the maximum mean discrepancy (MMD)-based transfer learning to adapt the trained model to the cutting tool, and a LSTM model to conduct the RUL prediction based on the image features aggregated with machining process parameters (MPPs). The performance of the approach is evaluated in terms of the root mean square error (RMS) and the mean absolute error (MAE). The results indicate the suitability of the approach for accurate wear and RUL prediction of cutting tools, enabling adaptive prognostics and health management (PHM) on cutting tools.
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This research is funded by Coventry University, Unipart Powertrain Application Ltd. (U.K.), Institute of Digital Engineering (U.K.), and the National Natural Science Foundation of China (Project No. 51975444).
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Mohamed Marei is responsible for idea and methodology development, algorithm implementation and validation and manuscript writing; Weidong Li is responsible for supervision, idea and methodology discussion, and algorithm check and manuscript refinement; apart from the above contributions, Weidong Li is also responsible for funding support and manuscript finalisation.
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Marei, M., Li, W. Cutting tool prognostics enabled by hybrid CNN-LSTM with transfer learning. Int J Adv Manuf Technol 118, 817–836 (2022). https://doi.org/10.1007/s00170-021-07784-y
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DOI: https://doi.org/10.1007/s00170-021-07784-y