Inferential measurement of the dresser width for the grinding process automation
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Dressing is an essential process for the machining industries. The grinding community keeps the slogan “grinding is dressing,” given the importance of this reconditioning process. This paper presents a methodology for forecasting the dresser width one step forward by using indirect monitoring. The dresser width is an important parameter to guarantee the quality of the dressing process and, in many cases, it is monitored directly by the operators. Acoustic emission signals were collected during the dressing process and an estimation neural network was used to correlate the dresser width with the processed signals to estimate the current value of the width. The output of the estimation network was input to a time-delay neural network to predict the next value of the dresser width. By utilizing this procedure, an automatic system would be able to readjust the dressing parameters while avoiding the stops, reducing costs, and maintaining repeatability during the process.
KeywordsInferential measurement Acoustic emission Artificial neural networks Tool wear condition Dressing operation
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The authors would like to thank NORTON, Saint Gobain group, for the donation of the grinding wheels, and the Master Diamond Ferramentas Ltda for the fabrication of the dressers. Also, thanks go to Capes and CNPq for supporting this work.
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Conflict of interest
The authors declare that they have no conflict of interest.
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