重庆大学学报2024，Vol.47Issue(9)：14-29,16.DOI:10.11835/j.issn.1000-582X.2023.105
大振幅超声振动辅助高速干切装置设计开发与性能测试
Design and development of a large-amplitude ultrasonic vibration-assisted high-speed dry cutting device and its performance tests
摘要
Abstract
The ultrasonic transducer is the core component of an ultrasonic vibration-assisted cutting device. To develop a large-amplitude ultrasonic vibration-assisted cutting device suitable for high-speed dry cutting,the first step is to design and develop the ultrasonic transducer. Based on the design method of the second-stage amplified ultrasonic transducer considering the tool,following the integrated design concept of amplifier-ultrasonic transducer,and combined with the results of modal analysis and harmonious response analysis using ANSYS finite element software,a two-stage amplified ultrasonic transducer was designed and developed. According to the characteristics of the developed two-stage amplified ultrasonic transducer,its matching ultrasonic generator,anti-rotation ring,power transmission system,and tool holder shell structure were systematically designed and developed. Performance tests including impedance analysis and amplitude measurement were carried out for the developed two-stage amplified ultrasonic transducer. Experimental test and analysis of the designed and developed large-amplitude ultrasonic vibration-assisted high-speed dry cutting device were conducted to explore the improvement of surface quality in the difficult-to-machining material 30CrMnSiNi2A. The results show that the longitudinal ultrasonic vibration simulation results of the two-stage amplified ultrasonic transducer are consistent with the theoretical design,and the longitudinal vibration amplitude output is stable. The longitudinal vibration amplitude is 15.4 μm at 50％ output power and can reach a maximum of 25.1 μm,with the output amplitude positively correlated with the power percentage,indicating good performance test results. The developed large-amplitude ultrasonic vibration-assisted cutting device greatly reduces the cutting force and surface roughness in the feeding direction,significantly improves the surface quality of difficult-to-machine materials,and is suitable for high-speed dry cutting of such materials.关键词
二级放大超声换能器/有限元仿真分析/大振幅超声振动辅助切削装置/振幅/超声振动辅助高速干切Key words
two-stage amplified ultrasonic transducer/finite element simulation analysis/large amplitude ultrasonic vibration assisted cutting device/amplitude/ultrasonic vibration assisted high-speed dry cutting分类
矿业与冶金引用本文复制引用
黄雪峰,曹华军,张金,宋阳,康信禛..大振幅超声振动辅助高速干切装置设计开发与性能测试[J].重庆大学学报,2024,47(9):14-29,16.基金项目
国家重点研发计划资助项目(2020YFB2010500).Supported by National Key R&D Program of China(2020YFB2010500). （2020YFB2010500）
