When the traditional milling method is used to process the aramid paper honeycomb materials,such quality prob-lems as honeycomb collapse,tearing and fiber roughening will occur.When the honeycomb materials are processed by means of ultrasonic vibration cutting,these problems can be avoided.In this article,firstly,efforts are made to design the overall structure of the ultrasonic vibration cutter for the aramid paper honeycomb materials,and ANSYS is used to conduct the modal analysis and the harmonic response analysis on the ultrasonic vibration cutter's vibrator.According to the analytical results,the vibrator struc-ture is optimized,the resonant frequency is determined,and the vibration characteristics are explored.Then,both the impedance test and the amplitude test are carried out on the ultrasonic vibration cutter's prototype to verify whether the ultrasonic vibration cutter for the aramid paper honeycomb materials is reasonable and feasible.Finally,the experiment of observing the cutting sur-face morphology of the aramid paper honeycomb materials is carried out.It is found that the surface morphology of the sample is more intact with the ever-growing amplitude.It is proved that thanks to ultrasonic vibration cutting,the quality of processing the aramid paper honeycomb materials can be enhanced.
关键词
超声波振动/Nomex蜂窝复合材料/有限元分析/超声波切割/谐振频率
Key words
ultrasonic vibration/Nomex honeycomb composite material/finite-element analysis/ultrasonic cutting/resonant frequency
维普
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