An approach to modelling evaporation pulsed laser drilling and its energy efficiency

  • Georgios Pastras
  • Apostolos Fysikopoulos
  • Panagiotis Stavropoulos
  • George Chryssolouris
Open Access
ORIGINAL ARTICLE

Abstract

Laser drilling is a thermal process with relatively low energy efficiency since the material removal mechanism is mostly based either on melting or on vaporization. Aiming at the investigation of the laser drilling efficiency, a theoretical both analytical and numerical study of evaporation pulsed laser drilling is presented. The analysis is based on a linear approximation of the temperature profile and separates the process into three phases, those of the heating, the melting and the vaporization. Based on these models, the energy efficiency and its dependence on the process parameters have been investigated and selection of relevant process variable guidelines, towards improving energy efficiency, are given. Moreover, the physical mechanisms responsible for most of the energy losses are analysed and classified according to their importance.

Keywords

Laser beam machining Drilling Process modelling Energy efficiency Sustainable manufacturing 

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Copyright information

© The Author(s) 2014

Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

Authors and Affiliations

  • Georgios Pastras
    • 1
  • Apostolos Fysikopoulos
    • 1
  • Panagiotis Stavropoulos
    • 1
  • George Chryssolouris
    • 1
  1. 1.Laboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and AeronauticsUniversity of PatrasPatraGreece

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