THE INFLUENCE OF DIFFERENT ISOLATING MATERIALS APPLIED TO ULTRASONIC HORNS SPECIFIC TO HYBRID ELECTROCHEMICAL MACHINING

Abstract

The paper deals with the study of influence for different materials applied to some ultrasonic chains, specific for electrochemical machining and micro electrochemical machining. Materials like polyvinyl chloride, polyamide, polyethylene, epoxy resin, were applied to the lateral part of ultrasonic horn-tool assembly, that has to be immersed in the electrolytic liquid. The influence of each material on resonance frequency was analyzed and a comparison between the parameters was made for the developed models considering the geometry of them. The study was realised using the program COMSOL Multiphysics. Also, some charts regarding the variation of own frequency for ultrasonic horns considering the depth of the applied material, were presented and analyzed. Finally, were exposed some solutions of output technological parameters for further improvement.