航空发动机热端部件可修复性评估方法探讨

评估热端部件的可修复性是开展受损航空发动机热端部件修复工作的重要内容之一。本文综合介绍了热端部件可修复性的定义、技术上的可修复性及可修复性评估的工艺流程等。重点论述了不同因素对可修复性评估的影响,并指出:热端部件的可修复性评估应在现有技术基础上,针对部件结构和使用特点,综合分析部件缺陷位置载荷要求、焊接修复区组织性能和结构可达性、工艺匹配性等特殊制约因素对热端部件可修复性的影响,在此基础上实现受损热端部件可修复性的合理准确评估。

Consideration in Evaluating Repairability of Aeroengine Hot-Section Component

It’s very important to evaluate the repairability of damaged hot-section components before the repair. In this artile, the evaluation method for repairability is considered, including repairability definition, repairability from the technical aspect and process flow chart, etc. The different influencing factors are discussed deeply and it is stated that, on the basis of technologies currently used in industry, repairability of hot-section components can be evalued successfully by considering generally the stress level,microstructures after repaired in damaged areas and special limiting factors such as accessibility for repair, compatibility with other technologies used in investigated components.