An Improved ResNet-1d with Channel Attention for Tool Wear Monitor in Smart Manufacturing

Author:

Dong Liang1ORCID,Wang Chensheng2ORCID,Yang Guang2,Huang Zeyuan3,Zhang Zhiyue1,Li Cen1

Affiliation:

1. School of Modern Post, Beijing University of Posts and Telecommunications, Beijing 100876, China

2. School of Artificial and Intelligence, Beijing University of Posts and Telecommunications, Beijing 100876, China

3. Teaching Affairs Office, Beijing University of Posts and Telecommunications, Beijing 100876, China

Abstract

Tool wear is a key factor in the machining process, which affects the tool life and quality of the machined work piece. Therefore, it is crucial to monitor and diagnose the tool condition. An improved CaAt-ResNet-1d model for multi-sensor tool wear diagnosis was proposed. The ResNet18 structure based on a one-dimensional convolutional neural network is adopted to make the basic model architecture. The one-dimensional convolutional neural network is more suitable for feature extraction of time series data. Add the channel attention mechanism of CaAt1 to the residual network block and the channel attention mechanism of CaAt5 automatically learns the features of different channels. The proposed method is validated on the PHM2010 dataset. Validation results show that CaAt-ResNet-1d can reach 89.27% accuracy, improving by about 7% compared to Gated-Transformer and 3% compared to Resnet18. The experimental results demonstrate the capacity and effectiveness of the proposed method for tool wear monitor.

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry

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