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Effect of Machine-Tool Rigidity on Geometric Error Formation in Turning Operation

Farouk El-Dahabi 1, Rabih Dib 1, Khaled Abou-El-Hossein 2, Shahrokh Hatefi 2, Abdalla Abbas 2, and Zvikomborero Hweju 2
1. Faculty of Engineering, Lebanese University, Tripoli, Lebanon
2. Precision Engineering Laboratory, Faculty of Engineering &Built Environment, Port Elizabeth, South Africa

Abstract—In machining operations, the rigidity of the machine-tool-workpiece system is one of the main criteria that have high influence the process capability in terms of part accuracy and process precision. In this study, a special mathematical model was developed for predicting the profile error received on a cylindrical part during turning operation as a result of variation in machine-tool rigidity during the feed movement of the lathe cutting tool. A graphical presentation of error formation caused by elastic squeezing of shaft sections under the action of the cutting force is generated in this work. The study can present a guide for engineers and technical interested in determining the error expected during machining of precise shafts and other long mechanical components having relatively low stiffness.

Index Terms—cutting tools, cutting force, rigidity, precision machining, geometric error in turning

Cite: Farouk El-Dahabi, Rabih Dib, Khaled Abou-El-Hossein, Shahrokh Hatefi, Abdalla Abbas, and Zvikomborero Hweju, "Effect of Machine-Tool Rigidity on Geometric Error Formation in Turning Operation," International Journal of Mechanical Engineering and Robotics Research, Vol. 9, No. 5, pp. 691-695, May 2020. DOI: 10.18178/ijmerr.9.5.691-695

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.