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Double in the loop - Refill friction stir spot welding developed 

                                                                                 18.12.2023

Stir4Steel successfully managed to developed a smart refill friction stir spot welding solution for various material combinations. To make it happen required material surface pre-treatments as well as required process windows have been elaborated and tested. Evaluation of these tests, such as metallurgical, mechanical, and surface properties including for both single-spot and multi-spot joint configuration, show promising results. Want to know more? Feel free to contact us!

Evaluation of surface appearances and height variations of a double spot welding

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This project has received funding from the Research Fund for Coal and Steel, a programme managed by the European Commission, supporting research in the coal and steel sectors in Europe under grant agreement No. 101034068. 

© 2025 Stir4Steel

Facts and Figures

  • Start date:     1st of September 2021

  • Duration:       36 months

  • EC Funding:  EUR 1.17 M

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