Theoretical Study on Overlapping Mechanism in SLM Based on Interlayer-Staggered Scan Strategy

Xu Bin Su; Yong Qiang Yang; Jie Liu

doi:10.4028/www.scientific.net/AMM.44-47.1482

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 44-47Theoretical Study on Overlapping Mechanism in SLM...

Theoretical Study on Overlapping Mechanism in SLM Based on Interlayer-Staggered Scan Strategy

Abstract:

In the study of the overlapping mechanism in selective laser melting (SLM) process based on interlayer-staggered scan strategy, relationship between the intra-layer overlapping rate and the inter-layer overlapping rate was obtained by theoretical deduction based on the continuity of layers; the overlapping mechanism and the depositing efficiency were later analyzed. Results showed that three types of overlapping mechanism exist under different values of overlapping rate: the intra-layer overlapping mechanism, the inter-layer overlapping mechanism and the mixed overlapping mechanism with coexistence of the first two types; the maximal depositing efficiency of intra-layer overlapping mechanism and inter-layer overlapping mechanism is 0.38 and 0.5 respectively. This study has provided basic theory for improving depositing efficiency in SLM process.

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Periodical:

Applied Mechanics and Materials (Volumes 44-47)

Pages:

1482-1486

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.44-47.1482

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Online since:

December 2010

Authors:

Xu Bin Su, Yong Qiang Yang, Jie Liu

Keywords:

Depositing Efficiency, Interlayer-Staggered Scan Strategy, Overlapping Mechanism, Selective Laser Melting (SLM)

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