A realistic virtual representation - a true digital twin - of the metallic additive manufacturing process will bring huge benefits, but its development presents equally large challenges.

  • $150

    Full registration

  • $75

    Early-career researcher


Tony Murphy

Event date: 04Jul 2019

Thursday 4 Jul 2019

Woodward Conference Centre, Main lecture room, 10th floor, University of Melbourne Law School (Building 106)

185 Pelham St, Carlton VIC
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This one-day symposium will bring together international leaders to answer critical questions, including:

  • What will such a digital twin look like?
  • What are our current capabilities?
  • What do we need to do to bridge the gap?

Metallic additive manufacturing involves layer-by-layer production of components, typically by melting metal powders using a laser or electron beam. Additive manufacturing has many attractive features; e.g. custom-designed components can be produced with geometries not achievable by conventional methods. However, for AM to reach its full potential, a realistic virtual representation of the complete process is required. Such a ‘digital twin’ will accelerate process design and optimisation, and form a key part of process certification and component qualification.

The development of a digital twin presents huge challenges. Not only do accurate and fast computational sub-models of the complex physical and metallurgical processes involved (powder-bed raking, heat transfer and flow in the molten pool, microstructure formation, residual stress development) have to be produced and validated, but they have to be tightly integrated. This is a critical obstacle since the sub-models use different computational approaches and treat vastly different scales, from powder (~50 micrometres) to part (up to metres).

The symposium will bring together leading experts in a diverse range of relevant fields including metallic additive manufacturing, computational modelling, multiscale techniques, structure-property relations, machine learning and artificial intelligence, and digital twins of industrial processes.

Through keynote lectures, poster presentations and facilitated discussion sessions, we aim to

  • Define the requirements for a true digital twin of the additive manufacturing process;
  • Identify the main barriers to developing such software, including those involved in linking sub-models across scales;
  • Explore the physical, metallurgical and computational approaches to overcome these barriers; and
  • Set out a roadmap for the development of a digital twin.

Keynote speakers include:

  • Tarasankar DebRoy, Penn State University, USA
  • Dongdong Gu, Nanjing University of Aeronautics and Astronautics, China
  • Leila Ladani, University of Texas at Arlington, USA
  • Ibo Matthews, Lawrence Livermore National Laboratory, USA
  • Chris Vains, Siemens Australia

The symposium is directed towards researchers, managers, students and others from academia, government and industry.

We especially encourage early-career researchers to attend; the symposium will include a networking session, and we are offering a large number of travel grants for early-career researchers.

The 'Digital Twin' symposium will follow APICAM 2019 (2nd Asia-Pacific International Conference on Additive Manufacturing), to be held in Melbourne from 31 June to 3 July.

We hope to see you in July at the symposium in Melbourne.

Kind Regards,
Tony Murphy

E tony.murphy@csiro.au | T +61 2 9413 7150 | M +61 4 1454 7780