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Feature-based rule induction in machining operation using rough set theory for quality assurance
Journal article   Peer reviewed

Feature-based rule induction in machining operation using rough set theory for quality assurance

Tzu-Liang (Bill) Tseng, Yongjin Kwon and Yalcin M Ertekin
Robotics and computer-integrated manufacturing, v 21(6), pp 559-567
2005

Abstract

Rough set theory CNC machining Quality assurance Surface roughness Data Mining
There have been many studies, mainly by the use of statistical modeling techniques, as to predicting quality characteristics in machining operations where a large number of process variables need to be considered. In conventional metal removal processes, however, an exact prediction of surface roughness is not possible or very difficult to achieve, due to the stochastic nature of machining processes. In this paper, a novel approach is proposed to solve the quality assurance problem in predicting the acceptance of computer numerical control (CNC) machined parts, rather than focusing on the prediction of precise surface roughness values. One of the data mining techniques, called rough set theory, is applied to derive rules for the process variables that contribute to the surface roughness. The proposed rule-composing algorithm and rule-validation procedure have been tested with the historical data the company has collected over the years. The results indicate a higher accuracy over the statistical approaches in terms of predicting acceptance level of surface roughness.

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33 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Computer Science, Interdisciplinary Applications
Engineering, Manufacturing
Robotics
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