Dataset augmentation method for milling tool breakage monitoring based on auxiliary classifier generative adversarial networks

The objective of this study is to address the issue of data imbalance by augmenting the milling tool breakage dataset using Auxiliary Classifier Generative Adversarial Networks (ACGAN). The research team developed an ACGAN architecture capable of producing samples labeled with various states of tool breakage. To assess the fidelity of the ACGAN-generated data, this study employed evaluation metrics such as the Kullback-Leibler divergence, Euclidean distance, and the Pearson correlation coefficient, comparing the generated samples against actual samples. The findings indicate a high degree of similarity in data distribution between the synthetic and real samples, suggesting the effectiveness of the generated data for training purposes. This research introduces a cost-effective and efficient approach for data augmentation, significantly enhancing the capabilities of milling tool condition monitoring systems.