Detection of chipping in ceramic cutting inserts from workpiece profile during turning using fast Fourier transform (FFT) and continuous wavelet transform (CWT)
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- 作者：W.K. Leea ; M.M. Ratnama ; mmaran@usm.my" class="auth_mail" title="E-mail the corresponding author ; Z.A. Ahmadb
- 关键词：FFT ; CWT ; Ceramic ; Tool chipping ; Workpiece profile
- 刊名：Precision Engineering
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：47
- 期：Complete
- 页码：406-423
- 全文大小：6873 K
文摘
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A vision-based method for detecting the onset of chipping in ceramic tools during turning is proposed.
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Effect of chipping in the insert on the surface profile signature as investigated using FFT and CWT.
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Sharp increase in amplitude of spatial frequencies below the fundamental feed frequency was observed after tool chipping.
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Sub-window FFT method is effective in resolving time resolution by detecting chipping at cutting time around 17.5 s.
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Compared to sub-window FFT method the CWT method is able to detect the exact onset of chipping in the cutting tool insert.
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