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作 者:荣沁 陈源源 黄大中 朱永伟[1] RONG Qin;CHEN Yuanyuan;HUANG Dazhong;ZHU Yongwei(College of Mechanical Engineering,Yangzhou University,Yangzhou 225127,Jiangsu,China)
出 处:《陕西师范大学学报(自然科学版)》2024年第6期106-113,共8页Journal of Shaanxi Normal University:Natural Science Edition
基 金:国家自然科学基金(52175438);2023年江苏省研究生集萃计划。
摘 要:将旋转超声与磨削、电解作用有效复合,可以实现难加工材料、异形面零部件的精密且高效加工。设计了旋转超声复合电解磨削加工系统,对硬铝合金和铝基碳化硅颗粒增强复合材料(SiCp/Al)进行机械磨削、超声磨削及旋转超声复合电解磨削加工。分析了旋转超声复合电解磨削成形机理,研究了不同参数对加工精度、效率及表面质量的影响机制。进一步对旋转超声复合电解磨削加工系统进行了参数优化。结果发现:旋转超声复合电解磨削加工能有效减少切削力和发热,保证极间材料及时去除及电解液循环更新,增强了加工效果。当电压为3 V时,表面加工精度最好;采用优化参数,加工某型航空发动机叶片精度可达0.01 mm,表面粗糙度可小于0.80μm。结果说明旋转超声复合电解磨削加工方法具有显著技术优势。Rotational ultrasonic effects were integrated with grinding and electrolysis effectively to achieve precision and high-efficiency processing of difficult-to-machine materials and complex shaped parts.A rotary ultrasonic composite electrolytic grinding system was designed and developed.Experimental schemes were designed to conduct mechanical grinding,ultrasonic grinding and rotary ultrasonic combined electrolytic grinding experiments on aluminum and SiCp/Al particle-reinforced ceramic materials.The forming mechanism of rotary ultrasonic combined electrolytic grinding is analyzed,and the influence mechanism of different parameters on machining precision,efficiency and surface quality is studied.Based on its mechanism,the parameters of rotary ultrasonic combined electrochemical grinding system were optimized.The results show that rotary ultrasonic combined electrochemical grinding can effectively reduce the cutting force and heat,ensure the removal of electrode materials and electrolyte circulation renewal in time,and enhance and stabilize the machining effect.When the voltage is 3 V,the precision of machining an aero-engine blade can reach 0.01 mm and the surface roughness can be less than 0.80μm.The method of rotary ultrasonic combined electrochemical grinding has obvious technical advantages.
关 键 词:旋转超声 电解磨削 系统设计 成形机理 参数实验
分 类 号:TG663[金属学及工艺—金属切削加工及机床]
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