A methodology for precision manufacture of a nozzle using hybrid laser powder-bed fusion: a case study

Afazov, S ORCID: https://orcid.org/0000-0001-5346-1933, Ceesay, L, Larkin, O, Berglind, L, Denmark, W and Ozturk, E, 2020. A methodology for precision manufacture of a nozzle using hybrid laser powder-bed fusion: a case study. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. ISSN 0954-4054

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Abstract

This paper presents a methodology for precision manufacture of a nozzle using the hybrid laser powder-bed fusion (L-PBF) technology. A new distortion predictive model for hybrid L-PBF was developed using finite element techniques. The model was validated against experimentally measured distortion using optical scanning. The validated model was utilised to mitigate distortion by applying additional stiffeners to the nozzle geometry where the distortion was reduced by 60% to acceptable tolerance of ±200 µm. Micro-milling trials were conducted to identify optimum cutting parameters delivering high material removal rates while maintaining the average surface roughness of less than 1 µm. Finally, a nozzle with reduced distortion and desirable surface finish was manufactured, which has been used in industrial research context for process and product development of food products.

Item Type:	Journal article
Publication Title:	Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Creators:	Afazov, S., Ceesay, L., Larkin, O., Berglind, L., Denmark, W. and Ozturk, E.
Publisher:	Sage
Date:	30 September 2020
ISSN:	0954-4054
Identifiers:	Number Type 10.1177/0954405420958856 DOI 1371414 Other
Divisions:	Schools > School of Science and Technology
Record created by:	Linda Sullivan
Date Added:	17 Nov 2020 11:54
Last Modified:	31 May 2021 15:08
URI:	https://irep.ntu.ac.uk/id/eprint/41654

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