Inline diamond wire inspection based on resonant vibrations

摘要

Because the wire itself is the dominant cost in diamond wire sawing, economics dictate that the wire life must be prolonged. This paper presents recent progress made in real-time non-contact monitoring of diamond wire using the resonant vibration (RV) characteristics of the wire. This technology was successfully demonstrated on a diamond wire manufacturing line moving at 0.25m/s and showed excellent sensitivity to both plating metal thickness and diamond particle density, despite minor fluctuations in the tension. Additionally, a theoretical framework is presented which shows that the characteristics of the resonance curve do not change at speeds above 500m/s. As a result, this technology is expected to be able to meet the increasing demands of monitoring diamond wire wear during sawing as the wire speed continues to increase in the coming years.