无重铸层微小孔的电火花-超声振动钻削复合加工工艺研究  

Study on Composite Processing Technology of Electric Spark-ultrasonic Vibration Drilling Without Remelting Layer

作　　者：邱传阳 刘建勇 李若冰 罗学科 李殿新 张慧杰 范兴浩 QIU Chuanyang;LIU Jianyong;LI Ruobing;LUO Xueke;LI Dianxin;ZHANG Huijie;FAN Xinghao(Beijing Institute of Petrochemical Technology,Beijing 102617,China)

机构地区：[1]北京石油化工学院,北京102617

出　　处：《电加工与模具》2025年第1期76-84,共9页Electromachining & Mould

基　　金：国家重点研发计划项目(2023YFB4605902);北京市科技新星计划项目(20230484429);北京石油化工学院致远科研基金项目(2023003)。

摘　　要：为实现航空发动机叶片气膜孔无重铸层高效精密加工,基于团队研发的电火花-超声钻削复合加工机床研究了电火花-超声振动钻削复合加工工艺,分析了超声振动辅助扩孔加工工艺,开展了重铸层厚度实验和电火花-超声振动钻削复合加工实验。结果表明:使用最优工艺参数加工厚度2 mm的单晶高温合金,加工时间为26 s;对比普通钻削加工,超声振动辅助钻削可去除电火花加工留下的重铸层,使加工效率提高了54.7%、刀具使用寿命提高了43.7%。To achieve the efficient and precise machining of air film holes in aero-engine blades without remelting layer,this paper investigates the composite machining process of electric spark-ultrasonic vibration drilling based on the electrospark-ultrasonic drilling composite machining machine developed by the research team.Analyzed the ultrasonic assisted reaming processing process,carried out the remelting layer thickness experiment and electric spark-ultrasonic vibrating drilling composite processing experiment.The results show that the 2 mm thick single crystal superalloy,and the processing time of 26 s.Compared with ordinary drilling processing,ultrasonic vibration-assisted drilling removed the recast layer left by EDM,and the ultrasonic vibration auxiliary drilling efficiency is increased by 54.7%,and the service life of the tool is increased by 43.7%.This paper has guiding significance for the research and development of microhole without remelting layer processing equipment and processing technology research.

关 键 词：微小孔 电火花加工 超声辅助钻削 无重铸层加工 复合加工 

分 类 号：TG666[金属学及工艺—金属切削加工及机床]