声塑性机制及其在塑性加工中的应用  

Acoustoplastic mechanism and its application in plastic processing

作　　者：李双利 赵亦希[1] 于忠奇[1] LI Shuang-li;ZHAO Yi-xi;YU Zhong-qi(Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学上海市复杂薄板结构数字化制造重点实验室,上海200240

出　　处：《塑性工程学报》2023年第8期8-34,共27页Journal of Plasticity Engineering

基　　金：国家重点研发计划(2020YFA0711102);国家自然科学基金资助项目(51875352,51790175)。

摘　　要：超声振动作为一种能量输入被广泛应用于各类塑性成形工艺中,目前研究普遍认为,超声振动叠加在金属塑性变形上可显著降低成形载荷,称之为声塑性,主要作用机制包括体积效应和表面效应。分别对目前已有的考虑体积效应和表面效应的理论模型的研究进展进行了综述,在此基础上,从超声辅助工艺原理、利用声塑性机制的侧重点以及超声辅助塑性成形装置的改进3个方面介绍了搅拌摩擦焊、滚压、旋压以及微成形等领域采用超声振动辅助塑性成形工艺的发展现状,并提出了未来主要的研究思路。Ultrasonic vibration has been widely used in various plastic forming processes as an energy input.At present,it is generally believed that ultrasonic vibration superimposed on metal plastic deformation can significantly reduce the forming load,which is called acoustoplastic.The main action mechanisms include volume effect and surface effect.The research progress of the existing theoretical models considering volume effect and surface effect was reviewed respectively.On this basis,the development status of ultrasonic vibration-assisted plastic forming technology in the fields of friction stir welding,rolling,spinning,and micro-forming was introduced from three aspects:the principle of ultrasonic-assisted technology,the focus of using acoustoplastic mechanism and the improvement of ultrasonic-assisted plastic forming device.The main research ideas in the future were proposed.

关 键 词：声塑性机制 理论模型 体积效应 表面效应 超声振动辅助塑性成形 

分 类 号：V261.7[航空宇航科学与技术—航空宇航制造工程] O426.4[理学—声学]