Recent advances in laser welding for joining polymeric components

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Eduardo André de Sousa Marques
Luiz Rafael Resende da Silva
Ricardo João Camilo Carbas
Lucas Filipe Martins da Silva


Laser welding of polymers is a very popular industrial joining process, creating joints with good mechanical performance. However, the implementation of optimized laser welding processes is still quite limited since most industrial applications adopt an empirical approach to adjust the process parameters. The current work provides a summary of new findings on the subject of laser joining of polymers, describing the key operation modes of this joining method, its process parameters and how they affect the joint characteristics. The response of polymers to temperatures generated during laser welding is also discussed, as well as the effect of additives on the weldability of polymers.

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