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An explicit methodology for manufacturing cost–tolerance modeling and optimization using the neural network integrated with the genetic algorithm

Published online by Cambridge University Press:  29 April 2020

A. Saravanan Open the ORCID record for A. Saravanan [Opens in a new window] ,
J. Jerald  and
A. Delphin Carolina Rani
A. Saravanan*
Affiliation:
Department of Production Engineering, National Institute of Technology, Tiruchirappalli620015, India
J. Jerald
Affiliation:
Department of Production Engineering, National Institute of Technology, Tiruchirappalli620015, India
A. Delphin Carolina Rani
Affiliation:
Department of Computer Science and Engineering, Bharathidasan University, Tiruchirappalli, India
*
Author for correspondence: A. Saravanan, E-mail: varunsarav@gmail.com
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Abstract

The objective of the paper is to develop a new method to model the manufacturing cost–tolerance and to optimize the tolerance values along with its manufacturing cost. A cost–tolerance relation has a complex nonlinear correlation among them. The property of a neural network makes it possible to model the complex correlation, and the genetic algorithm (GA) is integrated with the best neural network model to optimize the tolerance values. The proposed method used three types of neural network models (multilayer perceptron, backpropagation network, and radial basis function). These network models were developed separately for prismatic and rotational parts. For the construction of network models, part size and tolerance values were used as input neurons. The reference manufacturing cost was assigned as the output neuron. The qualitative production data set was gathered in a workshop and partitioned into three files for training, testing, and validation, respectively. The architecture of the network model was identified based on the best regression coefficient and the root-mean-square-error value. The best network model was integrated into the GA, and the role of genetic operators was also studied. Finally, two case studies from the literature were demonstrated in order to validate the proposed method. A new methodology based on the neural network model enables the design and process planning engineers to propose an intelligent decision irrespective of their experience.

Keywords

Artificial neural network (ANN)cost–tolerance modelinggenetic algorithm (GA)tolerance optimization
Type
Research Article
Information
AI EDAM , Volume 34 , Special Issue 3: Thematic Collection: Fablabs, Makerspaces, and Design Spaces , August 2020 , pp. 430 - 443
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Copyright
Copyright © Cambridge University Press 2020

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