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发明公开
EP1941968A2 Method and apparatus for increasing fatigue notch capability of airfoils 审中-公开
的方法和装置的电阻增加至叶片的疲劳开裂

Method and apparatus for increasing fatigue notch capability of airfoils
摘要：
A method of reducing crack propagation in an airfoil (22) includes: providing an airfoil (22) having a root (36) spaced apart from a tip (34), spaced-apart leading and trailing edges (30, 32), a suction side (40) extending from the leading edge (30) to the trailing edge (32), and an opposed pressure side (38) extending from the leading edge (30) and the trailing edge (32), supporting the airfoil (22) against bending loads. The airfoil (22) is burnished using a burnishing element (42), so as to create at least one burnished section (68) of residual compressive stress. The at least one burnished section (68) is located adjacent the leading edge (30) and spaced from the leading edge (30) by an offset distance selected so as to avoid deformation of the leading edge (30).
摘要（中）：

减少在一个翼型（22）裂纹扩展的方法，包括：在翼片（22）提供具有根（36）从前端（34）间隔开的，间隔开的前缘和后缘（30，32），抽吸 侧（40），从所述前缘（30）与后缘（32）延伸，并在与压力侧（38）从所述前缘（30）和后缘（32）延伸，支承所述翼型件（22） 对弯曲载荷。 该翼型件（22）是使用抛光元件（42），以便产生残余压缩应力中的至少一个抛光部分（68）抛光。 所述至少一个抛光部分（68）位于邻近前缘（30），并通过在偏移距离选择成避免所述前缘（30）的变形从所述前缘（30）隔开。

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