Investigation into the effect of beam shape on melt pool characteristics using analytical modelling
An established analytical model is used to simulate an extended laser beam. Multiple Gaussian sources are superimposed to form a rectangular beam and results are compared with a single circular Gaussian source model as well as experimental results from a high power diode laser with a rectangular bea...
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| Format: | Article |
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Elsevier
2010
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| Online Access: | https://eprints.nottingham.ac.uk/28077/ |
| _version_ | 1848793502656233472 |
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| author | Ahmed, N. Voisey, K.T. McCartney, D.G. |
| author_facet | Ahmed, N. Voisey, K.T. McCartney, D.G. |
| author_sort | Ahmed, N. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | An established analytical model is used to simulate an extended laser beam. Multiple Gaussian sources are superimposed to form a rectangular beam and results are compared with a single circular Gaussian source model as well as experimental results from a high power diode laser with a rectangular beam. Melt depth, and melt pool profile and progression have been predicted by modelling which are compared with experimental results from melting of Inconel 625. The model produced is shown to give a reasonable prediction of melt pool shape and can be usefully employed to help optimise overlap required for laser surface processing applications. The value of absorptivity used in the model can be used as a fitting parameter to optimise the match between experimental and predicted results. |
| first_indexed | 2025-11-14T19:01:19Z |
| format | Article |
| id | nottingham-28077 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:01:19Z |
| publishDate | 2010 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-280772020-05-04T20:25:13Z https://eprints.nottingham.ac.uk/28077/ Investigation into the effect of beam shape on melt pool characteristics using analytical modelling Ahmed, N. Voisey, K.T. McCartney, D.G. An established analytical model is used to simulate an extended laser beam. Multiple Gaussian sources are superimposed to form a rectangular beam and results are compared with a single circular Gaussian source model as well as experimental results from a high power diode laser with a rectangular beam. Melt depth, and melt pool profile and progression have been predicted by modelling which are compared with experimental results from melting of Inconel 625. The model produced is shown to give a reasonable prediction of melt pool shape and can be usefully employed to help optimise overlap required for laser surface processing applications. The value of absorptivity used in the model can be used as a fitting parameter to optimise the match between experimental and predicted results. Elsevier 2010 Article PeerReviewed Ahmed, N., Voisey, K.T. and McCartney, D.G. (2010) Investigation into the effect of beam shape on melt pool characteristics using analytical modelling. Optics and Lasers in Engineering, 48 . pp. 548-554. ISSN 0143-8166 laser http://www.sciencedirect.com/science/article/pii/S0143816609003121 doi:10.1016/j.optlaseng.2009.12.013 doi:10.1016/j.optlaseng.2009.12.013 |
| spellingShingle | laser Ahmed, N. Voisey, K.T. McCartney, D.G. Investigation into the effect of beam shape on melt pool characteristics using analytical modelling |
| title | Investigation into the effect of beam shape on melt pool characteristics using analytical modelling |
| title_full | Investigation into the effect of beam shape on melt pool characteristics using analytical modelling |
| title_fullStr | Investigation into the effect of beam shape on melt pool characteristics using analytical modelling |
| title_full_unstemmed | Investigation into the effect of beam shape on melt pool characteristics using analytical modelling |
| title_short | Investigation into the effect of beam shape on melt pool characteristics using analytical modelling |
| title_sort | investigation into the effect of beam shape on melt pool characteristics using analytical modelling |
| topic | laser |
| url | https://eprints.nottingham.ac.uk/28077/ https://eprints.nottingham.ac.uk/28077/ https://eprints.nottingham.ac.uk/28077/ |