Effects of the Processing Parameters on the Forming Quality of Stainless Steel Parts by Selective Laser Melting

Qing Song Wei; Xiao Zhao; Li Wang; Rui Di Li; Jie Liu; Yu Sheng Shi

doi:10.4028/www.scientific.net/AMR.189-193.3668

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Reconstruction of Human Skeleton Model Based on Selective Laser Sintering
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Effects of Powder Characteristics on Selective Laser Melting of 316L Stainless Steel Powder
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Effects of the Processing Parameters on the...

Effects of the Processing Parameters on the Forming Quality of Stainless Steel Parts by Selective Laser Melting

Abstract:

Selective Laser Melting (SLM) can produce high-performance metal parts with complex structures. However, it’s difficult to control the processing parameters, because many factors involves. From the perspective of the molten pool, the study focuses on the effects of processing parameters, including scanning speed, laser power, scanning space, layer thickness, and scanning strategies, on the surface quality, the balling effect, the density of SLM parts, by conducting experiments of single track, single layer and block forming. The results show that the quality of the molten pool is affected by laser power and scanning speed. Scanning drove in the strategy of “jumping and turning”，a smooth surface and a less balling effect will be obtained. The thicker the powder layer is, the lower density will be obtained. The optimal parameters from series of experiments are: laser power of 98W; scanning speed of 90mm/s; scanning space of 0.07mm; layer thickness of 0.1mm; and scanning strategy of “jumping and turning”.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

3668-3671

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.3668

Citation:

Cite this paper

Online since:

February 2011

Authors:

Qing Song Wei, Xiao Zhao, Li Wang, Rui Di Li, Jie Liu, Yu Sheng Shi

Keywords:

Molten Pool, Rapid Prototyping (RP), Selective Laser Melting (SLM), Stainless Steel (SS)

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