Quality assessment in laser welding: a critical review


Quality assessment methods and techniques for laser welding have been developed both in- and post-process. This paper summarizes and presents relevant studies being classified according to the technology implemented (vision, camera, acoustic emissions, ultrasonic testing (UT), eddy current technique (ECT)) for the quality inspection. Furthermore, the current review aims to map the existing modeling approaches used to correlating measured weld characteristics and defects with the process parameters. Research gaps and implications of the quality assessment in laser welding are also described, and a future outlook of the research in the particular field is provided.


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This work is under the framework of EU Project MAShES. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 637081. The dissemination of results herein reflects only the authors’ view, and the Commission is not responsible for any use that may be made of the information it contains.


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Correspondence to Panagiotis Stavropoulos.

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Stavridis, J., Papacharalampopoulos, A. & Stavropoulos, P. Quality assessment in laser welding: a critical review. Int J Adv Manuf Technol 94, 1825–1847 (2018). https://doi.org/10.1007/s00170-017-0461-4

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  • Laser welding
  • Quality assessment
  • Weld defects
  • Monitoring techniques
  • Modeling