Journal
INTERNATIONAL JOURNAL OF AUTOMATION TECHNOLOGY
Volume 12, Issue 3, Pages 282-289Publisher
FUJI TECHNOLOGY PRESS LTD
DOI: 10.20965/ijat.2018.p0282
Keywords
CNC turning; smart manufacturing; vibration sensor
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Funding
- Ministry of Economy, Trade, and Industry (METI) of Japan
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Tool condition monitoring, such as tool wear and breakage, is an essential feature in smart manufacturing system. One of most potential sensors that can be used in tool monitoring is vibration sensor, which usually assembled at tool shank. However, in case of CNC turning with rotating tool turret, it is impossible to assemble the vibration sensor at the tool shank because wire of the sensor will be damaged when the turret rotated. This paper is addressed to compare thoroughly alternative sensor positions. Ten sensor positions including tool shank, as a reference, are investigated. The signals from three types of cutting, namely; normal cutting, abnormal cutting with tool wear and abnormal cutting when tool breakage occurred, are investigated. Based on the magnitude of the output signals and their capability to predict tool wear and breakage, a suggestion on vibration sensor positions is proposed.
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