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<p>The development of modern constructions and new materials for gas turbine engine lock joints requires improving their manufacturing methods to update and accelerate the process. Broaching is the leading method of manufacturing such joints today. It provides high surface quality but is expensive, energy-intensive, and it is difficult to adjust to technological processes. Mechanical (milling, grinding) and electrochemical methods, which are used to reduce the treatment time, are usually not effective enough due to the rapid wear of the tool. Promising results can be obtained using electroerosion methods. They provide high machining accuracy and surface quality, but a&#xa0;heat-affected zone (HAZ), microcracks, and residual tensile stresses appear in the surface layer. Chemical polishing, which can significantly accelerate the treatment process and improves surface quality, is promising to eliminate these defects.</p>

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Alternative methods for forming complex-shaped surfaces on gas turbine engine parts

  • 期刊论文

  • 发表日期：

    2025年9月15日

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  • Ch. B. Vasyliv,
  • M. S. Khoma,
  • M. R. Chuchman,
  • Yu. I. Torba,
  • O. V. Podobnyi,
  • Ye. O. Nemanezhyn,
  • O. E. Narivskyi

摘要

The development of modern constructions and new materials for gas turbine engine lock joints requires improving their manufacturing methods to update and accelerate the process. Broaching is the leading method of manufacturing such joints today. It provides high surface quality but is expensive, energy-intensive, and it is difficult to adjust to technological processes. Mechanical (milling, grinding) and electrochemical methods, which are used to reduce the treatment time, are usually not effective enough due to the rapid wear of the tool. Promising results can be obtained using electroerosion methods. They provide high machining accuracy and surface quality, but a heat-affected zone (HAZ), microcracks, and residual tensile stresses appear in the surface layer. Chemical polishing, which can significantly accelerate the treatment process and improves surface quality, is promising to eliminate these defects.