1.College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China;
2.Changsha University of Science and Technology, Changsha, Hunan 410114, China
Abstract：In order to clear up the burrs on soft magnetic ferrite without damaging the work-pieces, an ultrasonic horn was designed.Ultrasonic de-burring process was simplified into a particle spring forced vibration system composed of two springs with different stiffness coefficient.The minimum magnification of complex Gaussian horn was calculated after the failure condition was obtained.After calculating, the shape factor of complex Gaussian horn was proved 40% higher than the Exponent horn in the condition of minimum magnification, significantly decreased the stress concentration.The design process was verified by comparing the results of theoretical calculating with the finite element analyzing.
［1］沈庆峰,杨显万,刘春侠.软磁铁氧体材料［J］.昆明理工大学学报,2003,28(2),17-21.
［2］Wang D A, Chuang W Y, Hsu K, et al. Design of a Bézier-profile horn for high displacement amplification［J］.Ultrasonics, 2011, 51(2):148-156.
［3］陈秀梅,林书玉,鲜晓军.抛物线型超声变幅杆的探讨［J］.声学技术,2007,26(5),1295-1299.
［4］张小丽,林书玉.余弦形变幅杆的理论研究及模态分析［J］.陕西师范大学学报( 自然科学版), 2006, 34(3),48-51.
［5］Rosca I C, Chiriacescu S T,Cretu N C. Ultrasonic horns optimization［J］. Physics Procedia, 2010, 3（1）:1033-1040.
［6］贾杨,沈建中.带过渡段阶梯形变幅杆的有限元分析［J］.声学技术,2006,25(1),75-81.
［7］Astashev V K, Babitshy V I.Ultrasonic Processes and Machines: Dynamics, Control and Applications［M］. Berlin:Springer, 2007, 17-33.
［8］方绪文,唐洁影,黄庆安.微加工悬臂梁在横向冲击下的响应分析［J］.半导体学报, 2005, 26(2):379-384.
［9］JB 4129—1985冲压件毛刺高度［S］, 1985.
［10］林仲茂.超声变幅杆的原理和设计［M］.北京:科学出版社,1987,157-161.
2013, Vol. 34 
