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Modelling and Analysis of the Relationship Between Process Parameters and Cross Section Geometry of Tin Single Tracks in Liquid Metal Flow Rapid Cooling Additive Manufacturing

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Advances in Materials Processing (CMC 2017)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

The cross section geometry of single tracks has critical effects on the dimensional accuracy of metallic parts in self-developed liquid metal flow rapid cooling metal additive manufacturing. Tin single tracks were formed by a self-developed liquid metal flow rapid cooling metal additive manufacturing equipment with different process parameters. The cross sections of tin single tracks were observed by metallographic microscope, and fitted by Matlab software. The relational model between the process parameters and the cross section geometry of tin single tracks was established using BP neural network, and the influence of process parameters on the cross section geometry was also analyzed. The results demonstrate that tin single tracks have a good size uniformity, with the standard deviation 0.0556 for cross section width and 0.0111 for cross section height. The cross section geometry of tin single tracks is fitted with ellipse function with a fitting degree 0.9956. For the cross section width and height of tin single tracks, the average error between experimental value and predicted value by the BP neural network model is as small as 2.42 and 3.75%, respectively. The most influencing parameter on the cross section geometry of tin single tracks is the nozzle scanning speed, and then, with a sequence of decreasing importance, are the nozzle-to-substrate distance, the molten tin level and the molten tin superheat.

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Acknowledgements

This research was financially supported by the State Key Laboratory for Advanced Metals and Materials (2017Z-05) and the National High Technology Research and Development Program of China (2015AA034304).

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Authors and Affiliations

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Ang Li, Xuefeng Liu, Bo Yu, Yang Yan & Baoqiang Yin

  2. Beijing Laboratory of Metallic Materials and Processing for Modern Transportation, University of Science and Technology Beijing, Beijing, 100083, China

    Xuefeng Liu

Authors
  1. Ang Li
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  2. Xuefeng Liu
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  3. Bo Yu
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  4. Yang Yan
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  5. Baoqiang Yin
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Corresponding author

Correspondence to Xuefeng Liu .

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Editors and Affiliations

  1. Chinese Materials Research Society, Beijing, China

    Yafang Han

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Li, A., Liu, X., Yu, B., Yan, Y., Yin, B. (2018). Modelling and Analysis of the Relationship Between Process Parameters and Cross Section Geometry of Tin Single Tracks in Liquid Metal Flow Rapid Cooling Additive Manufacturing. In: Han, Y. (eds) Advances in Materials Processing. CMC 2017. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-0107-0_21

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  • DOI: https://doi.org/10.1007/978-981-13-0107-0_21

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-0106-3

  • Online ISBN: 978-981-13-0107-0

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