Real-Time Tool Breakage Monitoring for NC Milling Process
1995; Elsevier BV; Volume: 44; Issue: 1 Linguagem: Inglês
10.1016/s0007-8506(07)62275-6
ISSN1726-0604
AutoresJ.M. Lee, Duck K. Choi, Jihye Kim, C.N. Chu,
Tópico(s)Advanced Surface Polishing Techniques
ResumoThis paper presents real-time tool breakage detection in NC milling process by monitoring cutting force. Cutting force was indirectly measured by the feed drive AC motor current. Modeling of the feed drive system and calibration with a tool dynamometer show that the sensitivity of the feed drive motor current is sufficient to characterize tool breakage. AR 1 model with tool-runout is used to determine tool breakage. The algorithm was implemented on a Digital Signal Processing (DSP) board for real-time tool breakage monitoring. Experimental works showed an excellent real-time monitoring capability of the proposed tool breakage detection system.
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