IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v9y2018i1d10.1038_s41467-018-07900-9.html
   My bibliography  Save this article

Revealing internal flow behaviour in arc welding and additive manufacturing of metals

Author

Listed:
  • Lee Aucott

    (Culham Science Centre)

  • Hongbiao Dong

    (University of Leicester)

  • Wajira Mirihanage

    (University of Manchester)

  • Robert Atwood

    (Diamond Light Source)

  • Anton Kidess

    (Delft University of Technology
    Hilti Entwicklungsgesellschaft mbH, Computational Engineering)

  • Shian Gao

    (University of Leicester)

  • Shuwen Wen

    (Swindon Technology Centre
    Dongguan Centre of Excellence for Advanced Materials)

  • John Marsden

    (Swindon Technology Centre)

  • Shuo Feng

    (University of Leicester)

  • Mingming Tong

    (University College Dublin
    National University of Ireland Galway)

  • Thomas Connolley

    (Diamond Light Source)

  • Michael Drakopoulos

    (Diamond Light Source)

  • Chris R. Kleijn

    (Delft University of Technology)

  • Ian M. Richardson

    (Delft University of Technology)

  • David J. Browne

    (University College Dublin)

  • Ragnvald H. Mathiesen

    (The Norwegian University of Science and Technology)

  • Helen. V. Atkinson

    (University of Leicester
    Cranfield University)

Abstract

Internal flow behaviour during melt-pool-based metal manufacturing remains unclear and hinders progression to process optimisation. In this contribution, we present direct time-resolved imaging of melt pool flow dynamics from a high-energy synchrotron radiation experiment. We track internal flow streams during arc welding of steel and measure instantaneous flow velocities ranging from 0.1 m s−1 to 0.5 m s−1. When the temperature-dependent surface tension coefficient is negative, bulk turbulence is the main flow mechanism and the critical velocity for surface turbulence is below the limits identified in previous theoretical studies. When the alloy exhibits a positive temperature-dependent surface tension coefficient, surface turbulence occurs and derisory oxides can be entrapped within the subsequent solid as result of higher flow velocities. The widely used arc welding and the emerging arc additive manufacturing routes can be optimised by controlling internal melt flow through adjusting surface active elements.

Suggested Citation

  • Lee Aucott & Hongbiao Dong & Wajira Mirihanage & Robert Atwood & Anton Kidess & Shian Gao & Shuwen Wen & John Marsden & Shuo Feng & Mingming Tong & Thomas Connolley & Michael Drakopoulos & Chris R. Kl, 2018. "Revealing internal flow behaviour in arc welding and additive manufacturing of metals," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07900-9
    DOI: 10.1038/s41467-018-07900-9
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-018-07900-9
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-018-07900-9?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07900-9. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.