International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

Volume2,April 2017,

Topic : Estimation of Machine Vision and Acoustic Emission Features in Turning Nimonic75 by ANN

Authors:Y D Chethan || H V Ravindra, Y T Krishnegowda

Abstract:Turning is an important and widely used manufacturing process in engineering industries. The study of metal removal focuses on the features of tools, work materials, and machining parameter settings. Nickel-based super alloys are widely used in aircraft industry as they are exceptionally thermal resistant and retaining mechanical properties up to 700°C. By virtue of the above they induce tool wear while machining which seriously affect the life of the component, and it is a serious concern, since it is used in critical applications. In order to monitor the tool status in turning process, tool status dependent machine vision and AE features were extracted during machining and an attempt was made to obtain a clear insight of the parameters involved. But these simpler methods of analysis did not provide sufficient information about tool status and hence there was a requirement for more sophisticated method of signal analysis. This paper is the report of an investigation of an approach for machine vision signals estimation in turning for tool status monitoring. Tool status models were defined utilizing feed forward neural networks based on back propagation algorithm. The cutting test data were provided to the designed neural networks in order to train, validate and test them. Several configurations of networks, characterized by different number of hidden layers and number of neurons in the hidden layers, were trained for carrying out the best arrangement for the status parameters prediction, in terms of resulting errors. The input neurons are the investigated parameters (Machining time, AE RMS, AE count and perimeter), in estimating vision features i.e. wear area: perimeter, machining time, AE RMS, AE count are considered as the independent variables and vice versa in order to have the performance well in multi sensory situations. This ANN model could predict the vision and AE features by knowing the input data at time t. Also, this ANN model and multisensory system were coupled for on-line monitoring of the tool status..

Keywords: Artificial neural network (ANN, Machine vision, Acoustic Emission

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DOI: 01.1617/vol4/iss4/pid17546


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Editor-in-chief

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Editor-in-Chief
Meinhard Taher Schobeiri
Professor,
Texas A & M University, USA.

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IMPACT FACTOR: 3.8

ISSN(Online): 2456-1290

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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Journal Code : IJERMCE
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Impact Factor : 3.8
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