2016
DOI: 10.1177/0954405416654420
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Tool strain–based wear estimation in micro turning using Bayesian networks

Abstract: Estimation of tool wear in micro turning is important as it enhances the process fidelity and the surface quality of the job. In this work, a simple process is demonstrated that estimates the tool wear from strain data near the cutting edge of the tool tip for micro turning operations. The tool strain for tool with six different wear lengths, collected using fiber Bragg grating sensor, was preprocessed to generate a probability distribution. The strain and tool wear data were used as the training dataset. This… Show more

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Cited by 6 publications
(4 citation statements)
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“…Measurement of tool temperature and strain near to cutting edge in micro turning has been attempted recently using FBG sensors. 11,12 However, variations of these two quantities with size-effect influence (cutting, ploughing and slipping) which is essential for micro turning as opposed to conventional machining operations are not available. In order to bridge the existing gaps in and to analyze the variation of strain and temperature with varying conditions due to size-effect, which could facilitate better tool state monitoring and surface integrity assessment in micro turning, we propose a generic methodology for the same in this research.…”
Section: Existing Literaturementioning
confidence: 99%
See 1 more Smart Citation
“…Measurement of tool temperature and strain near to cutting edge in micro turning has been attempted recently using FBG sensors. 11,12 However, variations of these two quantities with size-effect influence (cutting, ploughing and slipping) which is essential for micro turning as opposed to conventional machining operations are not available. In order to bridge the existing gaps in and to analyze the variation of strain and temperature with varying conditions due to size-effect, which could facilitate better tool state monitoring and surface integrity assessment in micro turning, we propose a generic methodology for the same in this research.…”
Section: Existing Literaturementioning
confidence: 99%
“…Measurement of tool temperature and strain near to cutting edge in micro turning has been attempted recently using FBG sensors. 11,12 However, variations of these two quantities with size-effect influence (cutting, ploughing and slipping) which is essential for micro turning as opposed to conventional machining operations are not available.…”
Section: Existing Literaturementioning
confidence: 99%
“…The details of the mathematical operations can be found in the reference. 21 The algorithm computes the state-space model for the given inputs and outputs of a MIMO system as stated in equations (1) and (2) x…”
Section: System Identification Using N4sid Algorithmmentioning
confidence: 99%
“…The physics of material removal is dependent on a number of factors such as machining parameters, experimental conditions, effect of micro-structures and material properties. 1,2 The dependence of the tool–work conditions during and post machining on multiple parameters makes the machining physics complex. Physical quantities such as tool strain, temperature, machining vibration and cutting forces change the machining physics.…”
Section: Introductionmentioning
confidence: 99%