InImpact: The Journal of Innovation Impact

Publisher Future Technology Press
Vol. 8 No. 2 KES Transactions on SDM II - Sustainable Design and Manufacturing 2015
Volume Editors KES International
Journal ISSN 2051-6002
Article TitleImplementation of a machine tool performance measurement and diagnostic system and its impact on parts verification
Primary AuthorAkbar Jamshidi, University of Bath
Other Author(s) Mark Chappell; Jon Cave; Paul Maropoulos
Pages 528 - 537
Article ID sdm15-075
Publication Date 02-May-16

Five axis machine tools are increasing and becoming more popular as customers demand more complex machined parts. In high value manufacturing, the importance of machine tools in producing high accuracy products is essential. High accuracy manufacturing requires producing parts in a repeatable manner and precision in compliance to the defined design specifications. The performance of the machine tools is often affected by geometrical errors due to a variety of causes including incorrect tool offsets, errors in the centres of rotation and thermal growth. As a consequence, it can be difficult to produce highly accurate parts consistently. It is, therefore, essential to ensure that machine tools are verified in terms of their geometric and positioning accuracy. When machine tools are verified in terms of their accuracy, the resulting numerical values of positional accuracy and process capability can be used to define design for verification rules and algorithms so that machined parts can be easily produced without scrap and little or no after process measurement. In this paper the benefits of machine tool verification are listed and a case study is used to demonstrate the implementation of robust machine tool performance measurement and diagnostics using a ballbar system.

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Remarks Paper presented at KES International Conference on Sustainable Design and Manufacturing, 12-14 April 2015
First date of publication in InImpact: 1 December 2015