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LAWA - Production friendly solutions for laser welding of aluminium

Reference number
Coordinator Swerim AB - Swerim AB, Kista
Funding from Vinnova SEK 4 410 000
Project duration March 2017 - January 2020
Status Completed
Venture FFI - Sustainable Production
End-of-project report 2016-05464sv.pdf(pdf, 534 kB) (In Swedish)

Purpose and goal

The aim of the project has been to show how the risk of hot cracking in laser welding aluminum can be reduced with oscillating laser beam and with optimized welding parameters. A simulation model to predict the crack risk associated with setting of the welding parameters would be developed. Various welding tests would verify the correlation between welding parameters and the risk for hot cracks.

Expected results and effects

It has been shown that, especially with oscillating laser beam but also with optimized welding parameters, the risk of hot cracks can be affected. However, exactly how and why has not been clarified. The developed simulation model that was intended for this became too complex and requires too much computing power.

Planned approach and implementation

The project has been implemented in the form of work packages with the participation of Swerim, HV and industrial companies. The implementation has consisted of various packages such as developing a simulation model, developing and adapting crack tests to aluminum welding, standard welding tests with standard optics, welding tests with advanced laser welding optics, Design of Experiment, development of gas nozzles, etc. The work method has been successful, but especially the work on developing the simulation model has been underestimated.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 22 February 2020

Reference number 2016-05464

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