CFRP 마이크로 드릴가공에서 다중신호를 이용한 드릴 상태감시
The machinability of carbon fiber reinforced plastic (CFRP) is very poor because of its properties that make it difficult-to-machine, and machining trouble is often observed during microdrilling owing to easy drill wear and fracture. Therefore, it is important to effectively monitor the drill tool s...
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Published in | 한국생산제조학회지 Vol. 27; no. 5; pp. 401 - 408 |
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Main Authors | , , , |
Format | Journal Article |
Language | Korean |
Published |
한국생산제조학회
01.10.2018
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Subjects | |
Online Access | Get full text |
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Summary: | The machinability of carbon fiber reinforced plastic (CFRP) is very poor because of its properties that make it difficult-to-machine, and machining trouble is often observed during microdrilling owing to easy drill wear and fracture. Therefore, it is important to effectively monitor the drill tool state in microdrilling operations. Cutting force and acoustic emission (AE) signals are often used to monitor tool states during limited cutting conditions. Using the cutting force and AE signals simultaneously is suggested in this investigation to increase the effectiveness of monitoring tool states in microdrilling. The relationship between tool wear propagation and these signal characteristics are verified for various feed rates, and a good correlation is obtained from the signal processing results in the frequency domain. The power threshold level of simultaneous cutting force and AE signals in the frequency domain can be adopted to monitor microdrilling states of CFRP drilling. KCI Citation Count: 0 |
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ISSN: | 2508-5093 2508-5107 |
DOI: | 10.7735/ksmte.2018.27.5.401 |