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Experimental Research on Selective Laser Melting AlSi10Mg Alloys: Process, Densification and Performance

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Abstract

In this work, a set of experiments was designed to investigate the effect of process parameters on the relative density of the AlSi10Mg parts manufactured by SLM. The influence of laser scan speed v, laser power P and hatch space H, which were considered as the dominant parameters, on the powder melting and densification behavior was also studied experimentally. In addition, the laser energy density was introduced to evaluate the combined effect of the above dominant parameters, so as to control the SLM process integrally. As a result, a high relative density (> 97%) was obtained by SLM at an optimized laser energy density of 3.5-5.5 J/mm2. Moreover, a parameter–densification map was established to visually select the optimum process parameters for the SLM-processed AlSi10Mg parts with elevated density and required mechanical properties. The results provide an important experimental guidance for obtaining AlSi10Mg components with full density and gradient functional porosity by SLM.

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Acknowledgments

The research is financially supported by Science Challenge Project of China and Dongguan University of Technology high-level talents (innovation team) research project (Project No. KCYCXPT2016003).

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Authors and Affiliations

  1. State Key Laboratory of Manufacturing System Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi, China

    Zhen Chen, Zhengying Wei, Pei Wei, Bingheng Lu, Jun Du, Junfeng Li & Shuzhe Zhang

  2. School of Mechanical Engineering, Dongguan University of Technology, Dongguan, China

    Shenggui Chen & Bingheng Lu

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  1. Zhen Chen
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  2. Zhengying Wei
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  3. Pei Wei
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  4. Shenggui Chen
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  5. Bingheng Lu
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  6. Jun Du
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  7. Junfeng Li
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  8. Shuzhe Zhang
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Correspondence to Zhen Chen.

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Chen, Z., Wei, Z., Wei, P. et al. Experimental Research on Selective Laser Melting AlSi10Mg Alloys: Process, Densification and Performance. J. of Materi Eng and Perform 26, 5897–5905 (2017). https://doi.org/10.1007/s11665-017-3044-5

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  • DOI: https://doi.org/10.1007/s11665-017-3044-5

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