Multi-Sensor Intelligent Monitoring of High-Speed Grinding for Brittle and Hard Materials

Abstract:

This paper deals with an intelligent multi-sensor monitoring system, which focus on the characteristic of transient occurrence in high speed grinding and its application to the machining of brittle and hard materials. Different sensors are used to collect workpiece vibration, acoustic emission, force and displacement signals, which are used to define the stability of grinding process and monitoring the fault in high speed machining. Although there is a lot of methods have been reported in recent literature for monitoring grinding process, they have not a systematic method which can totally reflect the characteristic of high speed grinding. On the other hand，no single sensor or feature has been shown to be successfully and precisely all grinding faults. This paper combined different feature selection including time-frequency domain or wavelet methods and sensor fusion based on clustering method to deal with the stability condition test in high-speed grinding. The validity of the proposed method and the excellent detection accuracy is demonstrated through tests with SiC machining in high-speed grinding.

• Periodical: Applied Mechanics and Materials (Volume 741)
• Pages: 309-314
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.741.309
• Online since: March 2015
• Authors: Yin Chen Ma, Jian Guo Yang
• Keywords: Feature Selection, Grinding Process, Monitoring, Multi-Sensor, Sensor Fusion

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