Kiraci, Ercihan, Franciosa, Pasquale, Turley, Glen A., Olifent, Alan, Attridge, Alex and Williams, M. A. (2017) Moving towards in-line metrology : evaluation of a Laser Radar system for in-line dimensional inspection for automotive assembly systems. International Journal of Advanced Manufacturing Technology, 91 (1-4). pp. 69-78. doi:10.1007/s00170-016-9696-8

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Abstract

The increasing interest towards intelligent systems has led to a demand for the development of zero-defect strategies, with a paradigm shift from off-line and dedicated to in-line metrology with integrated robotic systems. However, a major barrier preventing the systematic uptake of in-line metrology is the lack of evaluation of system capability in terms of accuracy, repeatability and measurement time, when compared to the well-established coordinate measuring machine (CMM). In this study, a robotic Laser Radar (LR) solution is assessed in the context of automotive dimensional inspection of Body-In-White (BIW) applications. The objective is both to understand the effect of robot re-positioning error on measurement accuracy and repeatability and to compare measurement results against a CMM. Eighty-one surface points, six edge points, twenty-five holes and sixteen slots were selected from an industry standard measurement plan. Whilst LR exhibits a lower measurement accuracy than twin-column CMM, its repeatability is well within the specification limits for body shell quality inspection. Therefore, as a real-time in-line metrology tool, it is a genuine prospect to exploit. This research makes a significant contribution toward in-line metrology for dimensional inspection, for automotive application, for rapid detection and for correction of assembly defects in real time, with subsequent reduction of scrap and number of repairs/re-works.

Item Type:	Journal Article
Subjects:	Q Science > Q Science (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH):	Coordinate measuring machines, Optical radar, Measurement, Measuring instruments, Dimensional analysis
Journal or Publication Title:	International Journal of Advanced Manufacturing Technology
Publisher:	Springer UK
ISSN:	0268-3768
Official Date:	July 2017
Dates:	Date Event July 2017 Published 17 November 2016 Available 2 November 2016 Accepted 9 August 2016 Submitted
Volume:	91
Number:	1-4
Page Range:	pp. 69-78
DOI:	10.1007/s00170-016-9696-8
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access
Funder:	High Value Manufacturing Catapult

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