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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/4721

Title: Investigation of fully dense laser sintering of tool steel powder using a pulsed Nd:YAG (neodymium-doped yttrium aluminium garnet) laser
Authors: Su, W.-N.
Erasenthiran, Poonjolai
Dickens, Phill M.
Keywords: Laser sintering
Nd:YAG laser
Tool steel
Tooling
Laser cladding
Issue Date: 2003
Publisher: Professional Engineering Publishing / © IMechE
Citation: SU, W.-N., ERASENTHIRAN, P. and DICKENS, P.M., 2003. Investigation of fully dense laser sintering of tool steel powder using a pulsed Nd:YAG (neodymium-doped yttrium aluminium garnet) laser. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 217 (1), pp. 127-138
Abstract: A 550W neodymium-doped yttrium aluminium garnet (Nd:YAG) pulsed laser was used in the solid freeform fabrication (SFF) process to form fully dense sintered parts. Tool steel powder was chosen due to its wide acceptance in the tool-making industry. Unlike many processes applying either thermoplastic binder or metals of low melting points in the powder mixture, this process enables a direct fusion of material to solid parts without a further post-processing step. This paper presents a methodology and the results of high-power laser sintering of tool steel powder. The investigation includes the effects of various process parameters on the fully dense laser sintering results on a single bead and single layer and the related scan strategy to build up solid cubes. This process could eventually produce pre-forms with complex material structures rather than finished tools or parts.
Description: This article was published in the journal, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science [© IMechE]. It is also available at: http://journals.pepublishing.com/content/119771
Version: Published
DOI: 10.1243/095440603762554677
URI: https://dspace.lboro.ac.uk/2134/4721
ISSN: 0954-4062
Appears in Collections:Published Articles (Mechanical and Manufacturing Engineering)

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