航空材料学报2024，Vol.44Issue(2)：31-44,14.DOI:10.11868/j.issn.1005-5053.2023.000231
航空发动机用高温合金复杂薄壁精密铸件尺寸精度控制技术研究进展
Research progress on dimensional accuracy control technologies of complex thin-walled superalloy investment castings for aero-engines
摘要
Abstract
Superalloys are predominantly employed to crucial aviation hot-end components such as turbine rear casings,diffusers,and pre-swirl nozzles.The investment casting technology supersedes"casting + welding"forming approaches,which reduces the number of parts and processing procedures,offers improved reliability and mass reduction.Therefore,investment casting is a pivotal technology for aviation component manufacturing.However,the casting of complex thin-walled components encounters challenges with dimensional accuracy,impacting engine aerodynamic performance and assembly precision,which has become a bottleneck problem restricting the manufacturing quality of key structural components of aero-engines in China for a long time.This article reviews the current advancement in the dimensional accuracy control for superalloy investment castings at home and abroad.A forward-looking analysis and discussion on development trends are conducted,particularly focusing on digital and intelligent technologies.There is an urgent need to build a digital twin platform for investment casting in the future and to develop more advanced accurate,quantitative and intelligent prediction methods for dimensional deformation and die profile design theory.关键词
航空发动机/高温合金/尺寸精度控制/熔模精密铸造/复杂薄壁Key words
aero-engine/superalloy/dimensional accuracy control/investment casting/complex thin-walled分类
矿业与冶金引用本文复制引用
崔加裕,汪东红,肖程波,疏达,孙宝德,官邦,丁正一..航空发动机用高温合金复杂薄壁精密铸件尺寸精度控制技术研究进展[J].航空材料学报,2024,44(2):31-44,14.基金项目
国家重点研发计划项目(2022YFB3706800) （2022YFB3706800）
国家自然科学基金重大课题(52090042) （52090042）
国家自然科学基金创新研究群体项目(51821001) （51821001）
