超声横振辅助微细电解加工关键技术研究OA

Aiming at the problem that the electrolytic product is difficult to dispersed in electrochemical micromachining of deep and narrow grooves,a method of ultrasonic transverse vibration assisted electrochemical micromachining is proposed.This method uses the tool electrode to generate transverse vibration to make the flow field of the machining gap change periodically,which enhances the mass transport ability of the electrolytic products in the machining gap,and improves the machining efficiency and machining stability of the deep and narrow grooves.In order to study the processing characteristics of the method,a set of ultrasonic transverse vibration assisted electrochemical micromachining equipment is developed.The key equipment is ultrasonic-electrolysis synchronizing supply,which can achieve three operational modes.Based on the developed equipment,machining experiments are conducted on deep and narrow grooves as the research subject.The influence of different operational modes of the supply on the deep and narrow grooves is studied.The experiment results show that ultrasonic transverse vibration is beneficial to enhance the mass transport ability of deep and narrow groove machining.Synchronous ultrasonic mode one is beneficial to further improve the dissolution of workpiece and the mass transport ability of electrochemical micromachining.Synchronous ultrasonic mode two is beneficial to improve the machining accuracy of deep and narrow grooves.Finally,a deep and narrow groove with a width of 432.9 μm and an aspect ratio of 11.9 is processed.