锻造仿真与热模拟技术在航空发动机叶片精密锻造中的应用  

Application of Forging Simulation and Thermal Simulation Technology in Precision Forging of Aero-Engine Blade

作　　者：李娜 尹喜刚 刘静 王周涛 姚贵 LI Na;YIN Xigang;LIU Jing;WANG Zhoutao;YAO Gui(AECC Xi’an Aero-Engine Ltd.,Xi’an 710021,China)

机构地区：[1]中国航发西安航空发动机有限公司,西安710021

出　　处：《航空制造技术》2018年第15期59-62,68,共5页Aeronautical Manufacturing Technology

摘　　要：航空发动机叶片因其形状复杂、叶身型面厚度薄、材料变形困难,在精密锻造成型中常存在折叠、裂纹、表面损伤及局部填充不满等缺陷。应用有限元仿真软件Deform对航空发动机叶片精密锻造工艺进行模拟分析,可以获得金属材料锻造成型过程中应力场、应变场、温度场及流动轨迹等参数变化规律,将可能产生缺陷的模型在工艺设计阶段进行优化,缩短新产品研制周期。实践表明,Deform软件的应用,可有效地避免锻造缺陷的产生,对航空发动机叶片精密锻造工艺设计具有指导意义。Because of the complicated shape,the slight profile dimension and the bad formability of superalloy,defects such as folds,cracks and surface damages are usually existed during precision forging process.Thermal parameters compromised of stress field,strain field and temperature field could be obtained using Deform software,the trial production time can be shortened exactly by optimized FEA results.It has been found that Deform could guide the precision forging design and actual production process for airfoils.

关 键 词：DEFORM软件 航空发动机叶片 精锻 锻造仿真 热模拟 

分 类 号：V263.1[航空宇航科学与技术—航空宇航制造工程]