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

Abstract:

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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:

Edited by:

Ran Chen

Pages:

1482-1486

DOI:

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

Citation:

X. B. Su et al., "Theoretical Study on Overlapping Mechanism in SLM Based on Interlayer-Staggered Scan Strategy", Applied Mechanics and Materials, Vols. 44-47, pp. 1482-1486, 2011

Online since:

December 2010

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$35.00

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