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Numerical analysis of double track formation for selective laser melting of 316L stainless steel

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Abstract

Selective laser melting (SLM) is a popular additive manufacturing technique for metal material. Microstructure and defects of fabricated parts by SLM are closely associated with double scanning track. In this study, the single/double track formation simulation of 316L stainless steel was established to study the influence of process parameters on the forming and the defects during the SLM process. In addition, the impact of melt pool flow on single/double track forming and defects was analyzed. Experiments verified the numerical simulation. Results show that the volume energy density (VED) has significant influence on the formation and defects of SLM, and the optimized volume energy density (VED) range is obtained by numerical simulation and experiments.

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Acknowledgements

This research was supported by the Provincial Key Project of Natural Science Research Anhui Colleges (Grant No. KJ2019A0798) and the Natural Science Foundation of Anhui Jianzhu University (Grant No. 2019QDZ20).

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Authors and Affiliations

  1. Key Laboratory of Intelligent Manufacturing of Construction Machinery, Anhui Jianzhu University, Hefei, 230601, China

    Xuehui Chen, Weihao Mu, Xin Xu, Wei Liu, Lei Huang & Hao Li

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  1. Xuehui Chen
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  2. Weihao Mu
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  3. Xin Xu
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  4. Wei Liu
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  5. Lei Huang
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Correspondence to Wei Liu.

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Chen, X., Mu, W., Xu, X. et al. Numerical analysis of double track formation for selective laser melting of 316L stainless steel. Appl. Phys. A 127, 586 (2021). https://doi.org/10.1007/s00339-021-04728-x

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