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《China Mechanical Engineering》 2015-06
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Design of Ultrasonic Cutting Tool for an Ultrasonic Assisted Cutting Process of Nomex Honey-comb Materials Based on Substitution Method

Wu Xin;Hu Xiaoping;Yu Baohua;Ji Huawei;Lu Zhiping;Xia Xiaoqing;Hangzhou Dianzi University;  
A substitution method under help of the finite element method was proposed to solve the problem of the coupled design of a composite horn and the cutting tool of an ultrasonic acoustic system for the noomex honeycomb material cutting process. First,a stepped-catenoidal composite horn with high displacement amplification factor was designed by using the theory of elastic wave propagation and finite element analysis technique. Then,the influences of the horn length on the vibration characteristics were studied based on substitution method using finite element method. The performance of the ultrasonic vibration system was studied by using finite element method. Finally,the ultrasonic acoustic system was fabricated and the ultrasonic assisted cutting experiments were performed,and the nomex honeycomb materials were cut effectively by using the designed system. The machined surface shows high surface quality which is smooth without burrs. Thus,the effectiveness of the designed cutting tools was demonstrated.
【Fund】: 国家自然科学基金资助项目(KYZ013710037);; 中国博士后科学基金资助项目(2013M541769);; 国防科工局重大专项(A3920133001);; 浙江省自然科学基金资助项目(LY14E050025)
【CateGory Index】: TB33;TG663
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