A pilot study to assess manufacturing processes using selected point measures of vibroacoustic signals generated on a mu
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ORIGINAL ARTICLE
A pilot study to assess manufacturing processes using selected point measures of vibroacoustic signals generated on a multitasking machine Mariusz Deja 1
&
Roksana Licow 2
Received: 10 August 2020 / Accepted: 24 September 2020 # The Author(s) 2020
Abstract The article presents the method for the evaluation of selected manufacturing processes using the analysis of vibration and sound signals. This method is based on the use of sensors installed outside the machining zone, allowing to be used quickly and reliably in real production conditions. The article contains a developed measurement methodology based on the specific location of microphones and vibration transducers mounted on the tested object, in this case on a four-axis CNC ST20Y Haas lathe. A mobile phone was integrated into the measuring system and used to control the measurement process. The results from the analysis of vibration and sound signals recorded during different machining operations are presented. They refer to selected working conditions of a machine tool depending on switching the coolant supply on or off and different machine loads caused by various technological processing as well as the various speed of the positioning movements. The analysis was carried out using selected point measures describing the vibroacoustic signals. The synthesis conducted on the basis of results from the experiments indicates the validity of using vibration and acoustic signals, recorded outside the machining area, to evaluate material removal processes that are diverse in terms of kinematics and processing conditions. It indicates the possibility of using proposed point measures of vibroacoustic signals in the diagnostic aspects of the machine tools to achieve high dimension and shape accuracy and to evaluate the condition of the technological devices in terms of their optimal efficiency. Presented methodology can be used as a supporting tool in the CAD/CAM software for a better selection of appropriate cutting parameters and for a wireless control of manufacturing systems consisting of several machine tools. Keywords Vibroacoustic signals . Wireless control . Manufacturing systems . CNC machining . Condition monitoring
1 Introduction The monitoring of machining can increase the efficiency of production processes aside from ensuring the required quality of manufactured parts. In addition, production activities have
* Mariusz Deja [email protected] Roksana Licow [email protected] 1
Department of Manufacturing and Production Engineering, Faculty of Mechanical Engineering, Gdańsk University of Technology, Gdańsk, Poland
2
Department of Rail Transportation and Bridges, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, Gdańsk, Poland
to undergo global changes to considerably reduce greenhouse gas emissions as suggested by Rao in [1]. Different types of sensors can be used for reliable tool condition monitoring (TCM) along with predicting the surface quality and the energy consumption leading to energ
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