Nd-YAG Laser Machining Technology for Cooling Passage Holes of High Temperature Gas Turbine Parts

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概要

• 論文の詳細を見る

• The tendency of gas turbines towards high temperature largely depends on the processing technology of film cooling holes. Up to now these cooling holes have been processed with ECM and EDM. But gradually laser hole drilling has been introduced, which enables high-speed drilling with high precision at reasonable cost and automization. In this report we have pursued the utmost limit of laser hole drilling to give freedom in the design of film cooling, thus achieved an inclined angle of 10° to the surface with a hole diameter of 0.5mm. Besides that, we will describe such topics as drilling of holes from the side of Zirconia coating, drilling of holes of various shapes, diffuser hole, internal wall surface conditions and reduction of operating hours.

• 公益社団法人日本ガスタービン学会の論文
• 1995-03-01

著者

• Kathuria Yash

  Laser X Co. Ltd.

• Tsuboi Akihiko

  Laser X Co. Ltd

• TAKAHARA Kitao

  Takahara Laboratory

• YOSHIDA Toyoaki

  National Aerospace Laboratory

• HORIBA Koichi

  Laser X Co., Ltd.

• Horiba Koichi

  Laser X Co. Ltd.

関連論文

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• Nd-YAG Laser Machining Technology for Cooling Passage Holes of High Temperature Gas Turbine Parts
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• Expulsion of the liquid metal during the laser drilling process

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