Measuring of positioning, circularity and static errors of a CNC vertical machining centre for validating the machining accuracy

Usop, Z. and Sarhan, A.A.D. and Mardi, N.A. and Wahab, M.N.A. (2015) Measuring of positioning, circularity and static errors of a CNC vertical machining centre for validating the machining accuracy. Flow Measurement and Instrumentation, 61. pp. 39-50. ISSN 0263-2241, DOI https://doi.org/10.1016/j.measurement.2014.10.025.

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Abstract

A CNC machine tool performance depends on the machine accuracy status which is very important to determine the end product compliance to the specification. The accuracy of the machine can be measured and analyzed; hence the errors' impact can be predicted on a workpiece. This paper presents three types of accuracy tests performed on a CNC Vertical Machining Centre, how the accuracy status affect the end product quality and what are the corrective actions to be taken. First, the laser test to determine the linear positioning accuracy, second the ball bar test to determine the circularity accuracy and third, the static accuracy test to determine the machine current static accuracy status and finally the cutting test to determine the actual machine accuracy effect on a work piece. Machine tool's errors can be diagnosed and minimize or eliminated by either electronic compensation or mechanical maintenance and sometimes both need to be done. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type:	Article
Funders:	This research is funded by the high impact research (HIR) Grant UM.C/HIR/MOHE/ENG/23, Grant No: D000023-16001 from the Ministry of Higher Education, the Ministry of Science, Technology & innovation (MOSTI) through Science Fund Grant (03-03-02-SF0183) and
Additional Information:	Ay3ub Times Cited:0 Cited References Count:12
Uncontrolled Keywords:	Positioning errors, circularity errors, static accuracy errors, machining accuracy,
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	23 Jul 2015 02:51
Last Modified:	30 Dec 2015 04:24
URI:	http://eprints.um.edu.my/id/eprint/13784

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