低熔点合金浇注燃气涡轮叶片加工基准的金属型铸造工艺研究  

Metal Mold Casting Process of Machining Benchmark for Gas Turbine Blades with Low Melting Point Alloy

作　　者：周惦武[1] 刘澳 张红丽 叶利丽 覃事鹏 廖鑫 杨娜 文婷 毛建中[1] ZHOU Dianwu;LIU Ao;ZHANG Hongli;YE Lili;QIN Shipeng;LIAO Xin;YANG Na;WEN Ting;MAO Jianzhong(State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha 410082,China;Aecc South Industry Co.,Ltd.,Zhuzhou 412002,China)

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室,湖南长沙410082 [2]中国航发南方工业有限公司,湖南株洲412002

出　　处：《铸造技术》2023年第11期1062-1067,共6页Foundry Technology

摘　　要：航空发动机燃气涡轮叶片机械加工时,需根据叶片型面非规则的几何形状设计专用工装,存在加工基准转换频繁、叶片加工质量和生产效率低等问题。采用低熔点合金浇注的方法再造加工基准,并对其金属型铸造工艺进行了实验研究。结果表明,使用金属型铸造工艺生产燃气涡轮叶片加工基准,满足工件装夹的硬度要求,通过机械破碎的方式可实现工件与基准块之间的快速分离,该工艺缩短了产品制造周期,提高了生产效率。Special tools were designed according to the irregular geometry of the blade profile when aero-engine gas turbine blades were machined,and problems such as frequent conversion of machining datum,low machining quality and low production efficiency existed.In this paper,a low melting point alloy casting method was used to reconstruct the machining benchmark,and the metal mold casting process was studied experimentally.The results show that the machining benchmark of the gas turbine blade produced by the metal mold casting process can meet the hardness requirements of workpiece clamping.The rapid separation between the workpiece and benchmark block could be realized by mechanical crushing,hence the process could shorten the manufacturing cycle and improve the production efficiency.

关 键 词：涡轮叶片 金属型铸造 模具 机械破碎 

分 类 号：TG292[金属学及工艺—铸造]