Vibration–based online tool wear monitoring using piezo film sensor analyzed by I-kaz multilevel signal feature

Z. Karim, Azman Hussin, M. S. Ahmad Yasir, M. Z. Nuawi

Research output: Contribution to journalArticle

Abstract

Wear in cutting tool is a normal phenomenon in machining process. Problems such as dimensional precision, surface finish quality and defect cost is due to the wear. The wear also can cause unexpected stop time and lower down the manufacturing productivity. Therefore, a system to monitor the progression of the tool wear is needed to predict the wear status and stop machining operation once the wear reach the allowed limit. In this study, the monitoring system was designed by utilizing 2 units of piezoelectric film sensors which are capable of detecting and analyzing signals related to tool holder vibration during the machining process in both feed and tangential axes. The sensors were stacked on x axis and z axis surfaces of the tool holder and signals were channeled to a charge amplifier and then to the digital data acquisition equipment which then display the vibration signal in time domain on the computer screen. A total of 8 experiments were carried out using CNC turning machine. Vibration signal and wear measurement were recorded for each run in the experiment. The experiment were stopped once the wear reach approximately 0.3mm. I-kaz multilevel signal features were extracted from the vibration signal recorded and then correlated with the flank wear status. There is a solid or substantial correlation between the cutting tool wear condition and I-kaz multilevel coefficient value, with average of 0.87 for I-kaz x coefficient (tangential direction) and 0.910 for I-kaz z coefficient (feed direction). This affirm that I-kaz multilevel signal feature can be assigned as the input criterion for the tool condition monitoring system that can estimate the current status of the flank wear on the cutting tools which can prevent defect in the machining process.

Original languageEnglish
Pages (from-to)3397-3403
Number of pages7
JournalInternational Journal of Engineering and Advanced Technology
Volume8
Issue number6
DOIs
Publication statusPublished - Aug 2019

Fingerprint

Wear of materials
Monitoring
Sensors
Machining
Cutting tools
Experiments
Surface defects
Condition monitoring
Surface properties
Data acquisition
Productivity
Defects
Costs

Keywords

  • And correlation
  • I-kaz
  • Piezo electric film
  • Tool condition monitoring system
  • Wear prediction

ASJC Scopus subject areas

  • Environmental Engineering
  • Engineering(all)
  • Computer Science Applications

Cite this

Vibration–based online tool wear monitoring using piezo film sensor analyzed by I-kaz multilevel signal feature. / Karim, Z.; Hussin, Azman; Ahmad Yasir, M. S.; Nuawi, M. Z.

In: International Journal of Engineering and Advanced Technology, Vol. 8, No. 6, 08.2019, p. 3397-3403.

Research output: Contribution to journalArticle

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