单激励纵扭复合超声铣削系统研究

发布时间：2018-02-22 09:50

本文关键词： 单激励超声加工纵扭复合振动有限元分析　出处：《振动与冲击》2015年06期 　论文类型：期刊论文

【摘要】：针对切削、焊接过程中超声复合振动能获得较高加工质量、效率及有助于延长刀具使用寿命,研究分析纵扭复合超声铣削系统运动特性及切削轨迹特征;基于斜梁振动原理,提出加工工艺简单、制造成本低的斜梁式超声变幅杆,并利用有限元软件ANSYS进行结构动力学分析,证实通过单向激励可产生纵扭复合振动;应用研制的纵扭复合超声振动铣削系统对碳纤维复合材料进行切削试验,获得较好加工效果,从而验证理论分析与数值模拟结果的正确性。
[Abstract]:The ultrasonic composite vibration during cutting and welding can obtain high machining quality, efficiency and help to prolong the service life of the tool. This paper studies and analyzes the motion characteristics and cutting track characteristics of the longitudinal and torsional composite ultrasonic milling system, which is based on the vibration principle of oblique beam. The simple processing technology and the low manufacturing cost of the skew beam type ultrasonic amplitude-changing rod are put forward. The structural dynamics analysis is carried out by using the finite element software ANSYS, and it is proved that the longitudinal and torsional composite vibration can be produced by unidirectional excitation. The cutting experiments of carbon fiber composites are carried out by using the developed longitudinal and torsional composite ultrasonic vibration milling system, and good machining results are obtained, which verifies the correctness of the theoretical analysis and numerical simulation results.
【作者单位】：河南理工大学机械与动力工程学院;新乡学院机电工程学院;
【基金】：国家“863”计划资助项目(2013AA040103) 河南省高等学校精密制造技术与工程重点学科开放实验室开放基金资助(PMTE201308A)
【分类号】：TG54

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