H2020 project Grade2XL

Grade2XL – Functionally Graded Materials for Extra-Large Parts

Project Description

Key Information

  • EU funding: € 7,91 Million
  • Total budget: € 9,75 Million
  • Duration: 48 months [March 2020 – Feb 2024]


Grade2XL is a joint development programme aligning partners along the value chain to foster the rapid development of WAAM materials and process. Grade2XL will deliver multi-material products of superior quality and performance. The high printing rate of WAAM, combined with the ability to control material properties down to the nanoscale, will enable building strong and durable engineering structures.

The Grade2XL project, funded by the programme Horizon 2020, will demonstrate the potential of multi-material wire arc additive manufacturing (WAAM) for large  structures ~1 to >10 m length. Grade2XL will strengthen Europe’s capacity to drive manufacturing innovation globally and withstand growing competition from Asia.


Grade2XL will deliver a multi-material, high throughput WAAM system, removing the technological barriers that hinder the application of WAAM, on three levels:

  1. Material level: functionally graded (multi)materials will be achieved by controlling the two main factors governing the material properties: the chemical composition and the thermal
  2. Process level: high WAAM productivity will be achieved using multiple wire deposition systems. The productivity will increase from typically 2 kg/h to 5 kg/h, which can double when a dual robot configuration is used. In-line contactless inspection will ensure first time right quality and facilitate qualification.
  3. Life cycle or system level: challenging applications will demonstrate the lifecycle benefits of WAAM multi-material devices and in-line process control.


Project Partners

  1. Stichting Materials Innovation Institute (M2i), The Netherlands – Lead Partner
  2. Rotterdam Additive Manufacturing Fieldlab (RAMLAB), The Netherlands
  3. Gent University, Belgium
  4. Delft University of Technology, The Netherlands
  5. Commissariat à l'énergie atomique et aux (CEA), France
  6. Technical Univerrsity of Denmark, Denmark
  7. voestalpine Böhler Welding, Germany
  8. Valk Welding, The Netherlands
  9. Air Products, Belgium
  10. Lincoln Electric Europe, The Netherlands
  11. Politechnika Wrocławska, Poland
  12. Naval Group, France
  13. Gorenje Orodjarna, Slovenia
  14. Energie de France, France
  15. Arrk Shapers, France
  16. MAN Energy Solutions, Denmark
  17. Ucosan (Villeroy&Boch), The Netherlands
  18. GKN Aerospace Services Ltd, United Kingdom
  19. Kuźnia Jawor S.A., Poland
  20. Bureau Veritas, France
  21. Pôle EMC2, France


Contact persons





For more information please visit Grade2XL webpage at: www.grade2xl.eu

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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 862017.