Research on Ultrafast Laser Machining of Film Cooling Hole in Turbine Blade

ZHANG Xiaobing; JI Liang; CAI Min; MAO Zhong; LI Yuancheng; ZHANG Wei

doi:10.16080/j.issn1671-833x.2021.21.014

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Research on Ultrafast Laser Machining of Film Cooling Hole in Turbine Blade

更新时间：2025-10-30

- Research on Ultrafast Laser Machining of Film Cooling Hole in Turbine Blade
- Aeronautical Manufacturing Technology Vol. 64, Issue 21, Pages: 14-22(2021)
- 作者机构：
  
  1. 中国航空制造技术研究院,北京,100024
  2. 高能束流加工技术重点实验室,北京,100024
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2021.21.014
  CLC：
- Published：2021
- 稿件说明：
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张晓兵，纪亮，蔡敏，毛忠，李元成，张伟 . 超快激光加工涡轮叶片气膜冷却孔技术研究[J]. 航空制造技术, 2021, 64(21): 14-22.

ZHANG Xiaobing, JI Liang,CAI Min, MAO Zhong, LI Yuancheng, ZHANG Wei. Research on Ultrafast Laser Machining of Film Cooling Hole in Turbine Blade. 航空制造技术, 2021, 64(21): 14-22.
张晓兵，纪亮，蔡敏，毛忠，李元成，张伟 . 超快激光加工涡轮叶片气膜冷却孔技术研究[J]. 航空制造技术, 2021, 64(21): 14-22. DOI： 10.16080/j.issn1671-833x.2021.21.014.

ZHANG Xiaobing, JI Liang,CAI Min, MAO Zhong, LI Yuancheng, ZHANG Wei. Research on Ultrafast Laser Machining of Film Cooling Hole in Turbine Blade. 航空制造技术, 2021, 64(21): 14-22. DOI： 10.16080/j.issn1671-833x.2021.21.014.

摘要

应用超快激光制孔技术以获得更高质量的涡轮叶片气膜冷却孔已在国内外得到广泛研究。介绍了国外超快激光加工较大深径比小孔的技术动态，并描述了基于 2.1ps 脉冲宽度、400μJ 脉冲能量的超快激光加工小孔的孔壁质量，小孔深度与加工的效率相关性，毫秒、纳秒、皮秒激光加工小孔对单晶高温合金试样疲劳性能的对比结果；针对发动机带热障涂层的叶片、双层壁结构叶片加工气膜冷却孔以及异型气膜冷却孔等，进一步描述了相应的工艺研究结果；最后针对超快激光加工叶片气膜冷却孔技术工程化应用提出了下一步应重点开展的研究工作。

Abstract

Making film cooling holes by ultrafast laser in turbine blade of single crystal superalloy to obtain better quality was studied widely at home and abroad. Ultrafast laser drilling research status abroad on making relatively high depth-diameter-ratio was briefly introduced at first. Then the quality of hole’s wall

the relationship between of hole’s depth and efficiency made by ultrafast laser at 2.1ps pulse width

400μJ pulse energy and experimental results of fatigue life comparison of three groups samples of single crystal superalloy with holes which were made by ms

ps laser separately were presented. The technical research results were described on making film cooling holes in turbine blades with thermal barrier coatings

in double wall blades and processing shaped film cooling holes. Further research focused on putting ultrafast laser drilling technology into production of making film cooling holes in turbine blades was proposed.

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