Macro Materials Processing

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Laser drilling in gas turbine blades

Shaping of holes in ceramic and metallic coatings

  1. Thomas Beck*

Article first published online: 9 MAY 2011

DOI: 10.1002/latj.201190024

Issue

Laser Technik Journal

Laser Technik Journal

Volume 8, Issue 3, pages 40–43, May 2011

Additional Information

How to Cite

Beck, T. (2011), Laser drilling in gas turbine blades. LTJ, 8: 40–43. doi: 10.1002/latj.201190024

Author Information

  1. SIEMENS Energy, Huttenstraße 12, 10553 Berlin, Germany, Phone: +49 (0)30 3461 2353

*SIEMENS Energy, Huttenstraße 12, 10553 Berlin, Germany, Phone: +49 (0)30 3461 2353, http://www.siemens.com

Publication History

  1. Issue published online: 9 MAY 2011
  2. Article first published online: 9 MAY 2011

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Abstract

Drilling applications represent about 5 % of the industrial laser materials processing applications. Cooling holes in gas turbines for aircrafts as well as for power plants are one of the main applications. The improvement of productivity has led to several drilling strategies with respect to laser sources (thermal drilling and ablation drilling), the beam handling, beam distribution, and handling of the work piece, all of which contribute to the overall efficiency of the process and a high productivity. We present the successful development and implementation of a combination of laser systems with different pulse durations for drilling complex 3D geometries (see Fig. 1).

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