A numerical approach to the energy efficiency of laser welding

  • G. Pastras
  • A. Fysikopoulos
  • G. ChryssolourisEmail author
Open Access


The industrial sector is increasingly concerned with energy consumption, due to the environmental burden and increased cost. An action plan requires the study of energy efficiency in manufacturing processes, especially energy-intensive processes. The energy consumption, during the assembly, plays a significant role on the product’s final energy and eco-evaluation. In this paper, there is a presentation of an in-depth study of the energy efficiency of joining processes. The laser welding process is also discussed in detail, since it has been an increasingly indispensable part of competitive manufacturing throughout the world, and it is a thermal process with relatively low energy efficiency. Important outcomes, regarding the dependence of energy efficiency and weld pool geometry on process parameters, have been derived.


Energy efficiency Laser welding Weld pool geometry Joining process Sustainable manufacturing 


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© The Author(s) 2017

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • G. Pastras
    • 1
    • 2
  • A. Fysikopoulos
    • 1
    • 3
  • G. Chryssolouris
    • 1
    Email author
  1. 1.Laboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and AeronauticsUniversity of PatrasPatrasGreece
  2. 2.Department of Physics, School of Applied Mathematics and Physical SciencesAthensGreece
  3. 3.Automation Systems - Materials & Process TechnologiesCOMAU SpAGrugliascoItaly

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