CAJ | 학술논문

目的：成形精度更高、质量更好的航空发动机钣金空心叶片。方法对空心叶片的结构进行分析，设计出了一种带有刚性凸模的内高压成形方法。根据塑性变形理论分析了零件的受力状况，根据所制定的工艺路线建立了有限元模型，对成形过程中的不同的管坯直径、内压大小、刚性凸模尺寸等工艺参数进行了仿真。结果得到了成形空心叶片的最优的工艺路线和工艺参数，有效抑制了零件的过度减薄和回弹等现象。结论通过此带有刚性凸模的内高压成形方法，可以很好地实现该零件的虚拟成形。
목적：성형정도경고、질량경호적항공발동궤판금공심협편。방법대공심협편적결구진행분석，설계출료일충대유강성철모적내고압성형방법。근거소성변형이론분석료령건적수력상황，근거소제정적공예로선건립료유한원모형，대성형과정중적불동적관배직경、내압대소、강성철모척촌등공예삼수진행료방진。결과득도료성형공심협편적최우적공예로선화공예삼수，유효억제료령건적과도감박화회탄등현상。결론통과차대유강성철모적내고압성형방법，가이흔호지실현해령건적허의성형。
To form the aero-engine hollow blade with higher accuracy and better quality, a method of hydroforming with rigid convex mold was designed through the analysis of the structure of the hollow blade. The stress state of the part was an-alyzed based on the plastic deformation theory. The finite element models were built according to the process method devel-oped. The different values of process parameters during the forming process including the diameter of the tube, the internal pressure and the size of the rigid convex mold, were used in the finite element simulation. The optimal route and parame-ters of the forming process for hallow blade were obtained. The excessive thinning and springback of the hollow blade were effectively controlled. The virtual forming of the blade was well achieved through the method of hydroforming with rigid con-vex mold.