超声波滚压光整加工技术机理研究  

Simulation Research of Ultrasonic Rolling and Finishing Processing Technology

作　　者：于泽旭[1] 宋锦春[1] 王琰[1] 倪克[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《机械设计与制造》2014年第12期93-96,共4页Machinery Design & Manufacture

摘　　要：超声表面滚压光整加工是一种新兴超声辅助表面改性技术,能够促使表面层晶粒纳米化,可显著降低材料的表面粗糙度值,改善表面应力分布,增强其耐磨、耐腐蚀性。研究了超声滚压加工机理及并建立力学模型。对超声加工系统各关键组成部分进行剖析,重点对超声变幅杆的结构进行了理论上的分析及设计,利用ANSYS有限元分析软件对变幅杆进行了模态与谐响应分析,验证了理论设计的合理性。确定了满足超声波滚压加工模式的本构模型,利用ABAQUS对超声滚压冲击过程做有限元模拟分析。It first introduces the surface self-nanocrystalization processing methods and the development of ultrasonic machining, and secondly finishes the analysis of key parts of ultrasonic machining system. At the same time, focuses on theoretically analyzing and designing of the structure of ultrasonic amplitude transformer, analyzing the modal and harmonic response of the amplitude transformer by using finite element analysis software ANSYS, verifying the rationality of thearetical design. Then, it discusses the mechanical constitutive model of the finite element model, and determines the constitutive model of ultrasonic rolling processing. It analyzes the impact of ultrasonic rolling processing by using the ABAQUS finite element analysis software, obtaining the deformation effect and its kinetic energy and internal energy curves.

关 键 词：超声波 滚压加工 活塞杆 自纳米化 表面粗糙度 建模 

分 类 号：TH16[机械工程—机械制造及自动化]