Li, Duo, Jiang, Xiangqian, Blunt, Liam, Tong, Zhen, Williamson, James and Young, Christian (2017) Development of on-machine measurement for ultra-precision machining. In: euspen's 17th International Conference, 29 May - 2 June 2017, Hannover, Germany. (Unpublished)
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Abstract
Surface measurement is playing an increasingly important role in ultra-precision manufacturing. Nowadays, there is a technological shift from offline measurement to on-machine measurement, forming a closed-loop control for manufacturing processes. Conventionally, the transportation operations between the measurement and machine coordinates are time-consuming and inevitably induce more errors, which cannot be neglected, especially at the ultra-precision level. Development of on-machine measurement for ultra-precision machining processes will enable the reduction of measurement cycle time as well as potential improvement of machining accuracy. In the present study, an in-house designed interferometer probe, called Dispersed Reference Interferometer (DRI) is integrated on an ultra-precision diamond turning machine (Precitech Nanoform 250). The alignment method of DRI is firstly described, in order to establish the measurement coordinate. Different on-machine measurement strategies are also discussed, including multiple radial, multiple circular, and spiral trajectories. Experimental study has shown that the on-machine measurement results of a cosine form sample agree well with the offline measurement. The measurement error difference is less than 10% and correlation coefficient is 0.991.
Item Type: | Conference or Workshop Item (Poster) |
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Uncontrolled Keywords: | ultra-precision diamond machining, on-machine measurement, non-contact, interferometry |
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
Schools: | School of Computing and Engineering School of Computing and Engineering > Centre for Precision Technologies > EPSRC Centre for Innovative Manufacturing in Advanced Metrology |
Related URLs: | |
Depositing User: | Liam Blunt |
Date Deposited: | 19 Jul 2017 09:36 |
Last Modified: | 26 Mar 2018 16:01 |
URI: | http://eprints.hud.ac.uk/id/eprint/32458 |
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