2017
DOI: 10.1007/s40430-017-0762-4
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A method based on spindle motor current harmonic distortion measurements for tool wear monitoring

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Cited by 28 publications
(18 citation statements)
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“…Nie detected tool wear by using db8 to decompose the Acoustic Emission (AE) signals and extracting the feature vector of frequency band [ 3 ]. Akbari proposed a method that monitoring the tools wear by quantizing the harmonic distortion of spindle current and characteristic analysis in time and frequency domain [ 7 ]. In these studies, features are selected manually by signal analysis to observe tool wear changes, but the features used are relatively single and do not have the learning ability, so they are often poor in judging complex and changeable signals.…”
Section: Introductionmentioning
confidence: 99%
“…Nie detected tool wear by using db8 to decompose the Acoustic Emission (AE) signals and extracting the feature vector of frequency band [ 3 ]. Akbari proposed a method that monitoring the tools wear by quantizing the harmonic distortion of spindle current and characteristic analysis in time and frequency domain [ 7 ]. In these studies, features are selected manually by signal analysis to observe tool wear changes, but the features used are relatively single and do not have the learning ability, so they are often poor in judging complex and changeable signals.…”
Section: Introductionmentioning
confidence: 99%
“…Since the indirect methods can implement Sensors 2020, 20, 6113 2 of 20 online monitoring, it has been widely adopted. The most commonly used indirect monitoring signals include cutting force signal [2][3][4], vibration signal [5][6][7], acoustic emission signal [8,9], machined surface image [10,11], and current signal [12][13][14][15][16][17].…”
Section: Introductionmentioning
confidence: 99%
“…Although multiple sensors can get more information related to the tool wear condition than a single current sensor, the costs and the interference caused by sensors increases with an increasing amount of sensors; therefore, in recent years, some researchers have made some achievements in the application of single-current sensors for tool wear monitoring. For example, Akbari et al [12] indicated that the total harmonic distortion (THD) and crest factor measures of the current signal can detect tool wear degree; however, they need additional harmonic analysis equipment to calculate the THD. Further, the tool wear condition will be misjudged if the tool cuts in or cuts out of the workpiece or if the power supply system is affected by the interference signal.…”
Section: Introductionmentioning
confidence: 99%
“…Other researchers reported that harmonic had great impact on the magnitude of current. However, the reverse magnetic properties of the rotating shaft materials were not taken into account [17][18][19]. Many researchers [20][21][22][23] proposed some new energy-saving management, which can enhance efficiency through optimizing the motor current and torque, but the research studies did not involve a better fit for the ceramic spindle in some special cases.…”
Section: Introductionmentioning
confidence: 99%