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Dual gas jet-assisted fibre laser blind cutting of dry pine wood by statistical modelling

  • Juan Carlos Hernandez-CastanedaEmail author
  • Huseyin Kursad Sezer
  • Lin Li
ORIGINAL ARTICLE

Abstract

This paper presents a statistical analysis of the performance of an Ytterbium fibre laser utilising single and dual gas jets in a single pass to blind cut dry pine wood. Cutting wood with lasers is a multi-factor process and a proper combination of the parameters involved is needed to achieve high quality and optimum process efficiency. This study employs design of experiments and statistical modelling approach to investigate the significant process parameters along with their interactions. A high brightness, 1 kW IPG single mode Ytterbium-doped fibre laser was employed to produce blind cuts on samples of dry pine wood. The experiments were performed parallel to the direction of the wood fibre. The parameters investigated include laser power, focal plane position, traverse speed, gas pressure and single and dual gas jets. Results were compared using a number of process responses which define the efficiency of the cut in terms of kerf depth, mass removal and energy consumption as well as quality of the cut section considering the heat-affected zone, kerf width and roughness of the edge of the surface. It has been found that application of an additional gas jet produced a surface finish superior to the single jet.

Keywords

Ytterbium fibre laser Pine wood Single pass laser blind cutting Design of experiments Statistical analysis 

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Copyright information

© Springer-Verlag London Limited 2010

Authors and Affiliations

  • Juan Carlos Hernandez-Castaneda
    • 1
    Email author
  • Huseyin Kursad Sezer
    • 1
  • Lin Li
    • 1
  1. 1.Laser Processing Research Centre, School of Mechanical, Aerospace and Civil EngineeringThe University of ManchesterManchesterUK

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