Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components
Laser powder bed fusion offers many advantages over conventional manufacturing methods, such as the integration of multiple parts which can result in significant weight-savings. The increased design freedom that layer-wise manufacture allows has also been seen to enhance component performance at lit...
| Main Authors: | , , , |
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| Format: | Article |
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Springer
2017
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| Online Access: | https://eprints.nottingham.ac.uk/48023/ |
| _version_ | 1848797674115956736 |
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| author | Everton, Sarah K. Dickens, Phill Tuck, Christopher Dutton, Ben |
| author_facet | Everton, Sarah K. Dickens, Phill Tuck, Christopher Dutton, Ben |
| author_sort | Everton, Sarah K. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Laser powder bed fusion offers many advantages over conventional manufacturing methods, such as the integration of multiple parts which can result in significant weight-savings. The increased design freedom that layer-wise manufacture allows has also been seen to enhance component performance at little or no added cost. However, for such benefits to be realised, the material quality must first be assured. Laser ultrasonic testing is a non-contact inspection technique which has been proposed as suitable for in-situ monitoring of metal additive manufacturing processes. This paper explores the current capability of this technique to detect manufactured, sub-surface defects in Ti-6Al-4V samples, ex-situ. The results are compared with x-ray computed tomography reconstructions and focus variation microscopy. Whilst laser ultrasound has been used to identify material discontinuities, further work is required before this technique could be implemented in-situ. |
| first_indexed | 2025-11-14T20:07:37Z |
| format | Article |
| id | nottingham-48023 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:07:37Z |
| publishDate | 2017 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-480232020-05-04T19:17:45Z https://eprints.nottingham.ac.uk/48023/ Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components Everton, Sarah K. Dickens, Phill Tuck, Christopher Dutton, Ben Laser powder bed fusion offers many advantages over conventional manufacturing methods, such as the integration of multiple parts which can result in significant weight-savings. The increased design freedom that layer-wise manufacture allows has also been seen to enhance component performance at little or no added cost. However, for such benefits to be realised, the material quality must first be assured. Laser ultrasonic testing is a non-contact inspection technique which has been proposed as suitable for in-situ monitoring of metal additive manufacturing processes. This paper explores the current capability of this technique to detect manufactured, sub-surface defects in Ti-6Al-4V samples, ex-situ. The results are compared with x-ray computed tomography reconstructions and focus variation microscopy. Whilst laser ultrasound has been used to identify material discontinuities, further work is required before this technique could be implemented in-situ. Springer 2017-11-16 Article PeerReviewed Everton, Sarah K., Dickens, Phill, Tuck, Christopher and Dutton, Ben (2017) Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components. JOM: the Journal of The Minerals, Metals & Materials Society . ISSN 1543-1851 https://link.springer.com/article/10.1007%2Fs11837-017-2661-7 doi:10.1007/s11837-017-2661-7 doi:10.1007/s11837-017-2661-7 |
| spellingShingle | Everton, Sarah K. Dickens, Phill Tuck, Christopher Dutton, Ben Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components |
| title | Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components |
| title_full | Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components |
| title_fullStr | Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components |
| title_full_unstemmed | Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components |
| title_short | Using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components |
| title_sort | using laser ultrasound to detect sub-surface defects in metal laser powder bed fusion components |
| url | https://eprints.nottingham.ac.uk/48023/ https://eprints.nottingham.ac.uk/48023/ https://eprints.nottingham.ac.uk/48023/ |