Development of System to Prevent Sudden Drill Breakage Using Acceleration-Sensing Holder

Le résumé fourni par la source

In drilling, tool breakage can occur due to tool wear and inadequate chip evacuation as cutting progresses. Being able to predict the timing of breakage is crucial, as unexpected failures can lead to increased cutting costs and time, ultimately resulting in lower productivity. By making predictions just before a sudden breakage occurs, we can therefore effectively address these issues. We developed a predictive system that analyzes thousands of features extracted from the collected acceleration data using an acceleration-sensing holder designed to collect real-time acceleration signals during cutting operations. By focusing on reducing the number of features to enhance prediction accuracy, we achieved an average accuracy rate of over 95%. Our findings indicate that the amplitude intensity of certain high-frequency components in the acceleration signal, as well as the total amount of variation in the acceleration signal, play significant roles in improving tool-breakage prediction.

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