Using Multiple-Feature-Spaces-Based Deep Learning for Tool Condition Monitoring in Ultraprecision Manufacturing

Tool condition monitoring is critical in ultraprecision manufacturing in order to optimize the performance of the overall process, while maintaining the desired part quality. Recently, deep learning has been successfully applied to numerous classification tasks in manufacturing, often to forecast pa...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) Vol. 66; no. 5; pp. 3794 - 3803
Main Authors: Shi, Chengming, Panoutsos, George, Luo, Bo, Liu, Hongqi, Li, Bin, Lin, Xu
Format: Journal Article
Language:English
Published: New York IEEE 01.05.2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Classification
Computer simulation
Deep learning
Deep learning (DL)
Feature extraction
feature fusion
feature spaces
Hidden Markov models
Machine learning
Machinery condition monitoring
Machining
Manufacturing
Manufacturing processes
tool condition monitoring (TCM)
Tool wear
ultraprecision manufacturing process
ISSN:0278-0046, 1557-9948
Online Access:Get full text
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Summary:Tool condition monitoring is critical in ultraprecision manufacturing in order to optimize the performance of the overall process, while maintaining the desired part quality. Recently, deep learning has been successfully applied to numerous classification tasks in manufacturing, often to forecast part quality. In this paper, a novel deep learning data-driven modeling framework is presented, which includes a fusion of multiple stacked sparse autoencoders for tool condition monitoring in ultraprecision machining. The proposed computational framework consists of two main structures. First, a training model that is designed with the ability to process multiple parallel feature spaces to learn the lower-level features. Second, a feature fusion structure that is used to learn the higher-level features and associations to tool wear. To achieve this learning structure, a modified loss function is utilized that enhances the feature extraction and classification tasks. A dataset from a real manufacturing process is used to demonstrate the performance of the proposed framework. Experimental results and simulations show that the proposed method successfully classifies the ultraprecision machining case study with over 96% accuracy, while also outperforming comparable methodologies.
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ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2018.2856193