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Title: Large-Scale Equipment and Higher Performance Materials for Laser Additive Manufacturing
Authors: Shi, Yusheng
Yan, Chunze
Wei, Qingsong
Zhang, Lichao
Wen, Shifeng
Zhao, Xiao
Keywords: Large-scale SLS/SLM systems
Nylon based composite
Issue Date: 2014
Source: Shi, Y., Yan, C., Wei, Q., Zhang, L., Wen, S., & Zhao, X. (2014). Large-Scale Equipment and Higher Performance Materials for Laser Additive Manufacturing. Proceedings of the 1st International Conference on Progress in Additive Manufacturing (Pro-AM 2014), 256-269.
Abstract: The current available selective laser sintering (SLS) and selective laser melting (SLM) equipment has a relatively small effective building volume, which does not offer capability to integrally manufacture a larger dimension component. Therefore, our research team has investigated key SLS processing techniques such as the large powder bed preheating system and multi-laser scanning system, and then successfully developed of a series of large-scale SLS systems with the effective building volumes of 1400×700×500 mm3 and 1400×1400×500 mm3, and SLM system with the effective building volume of 500×250×400 mm3. These large scale SLS/SLM systems will not only offer new capability to make large complex prototypes and products, but also provide higher volume production capability to make numerous small parts rapidly and cost-effectively. High performance materials have been developed for the large-scale SLS/SLM systems. Especially, nylon coated composite powders were prepared by a dissolution-precipitation process, which is able to uniformly disperse the micro/nano-scale filler particles in the nylon matrix, and thus enhance the properties of nylon SLS parts.
DOI: 10.3850/978-981-09-0446-3_022
Rights: © 2014 by Research Publishing Services.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:Pro-AM Conference Papers

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