The influence of ultrasonic vibration on parts properties during incremental sheet forming
作者机构：Key Laboratory of High Efficiency and Clean Mechanical ManufactureMinistry of EducationSchool of Mechanical EngineeringShandong UniversityJinan 250061People’s Republic of China National Demonstration Center for Experimental Mechanical Engineering EducationShandong UniversityJinan 250061People’s Republic of China School of Mechanical Engineering and AutomationBeihang UniversityBeijing 100083People’s Republic of China
出 版 物：《Advances in Manufacturing》 (先进制造进展（英文版）)
年 卷 期：2021年第9卷第2期
页 面：250-261页
核心收录：
学科分类：07[理学] 08[工学] 070206[理学-声学] 0802[工学-机械工程] 0702[理学-物理学]
基 金：supported by the National Natural Science Foundation of China(Grant Nos.51975328,51605258) the Postdoctoral Innovation Project of Shandong Province(Grant No.201701011) Young Scholars Program of Shandong University(Grant No.2018WLJH55)
主 题：Incremental sheet forming(ISF) Ultrasonic vibration Residual stress Forming limit
摘 要：The integration of ultrasonic vibration into sheet forming process can significantly reduce the forming force and bring benefits including the enhancement of surface quality,the enhancement of formability and the reduction of ***,the influencing mechanisms of the high-frequency vibration on parts properties during the incremental sheet forming(ISF)process are not well known,preventing a more efficient forming *** paper comprehensively investigates the effects of different process parameters(vibration amplitude,step-down size,rotation speed and forming angle)on the micro-hardness,minimum thickness,forming limit and residual stress of the formed ***,a series of truncated pyramids were formed with an experimental platform designed for the ultrasonic-assisted incremental sheet ***,microhardness tests,minimum thickness measurements and residual stress tests were performed for the formed *** results showed that the surface micro-hardness of the formed part was reduced since the vibration stress induced by the ultrasonic vibration within the material which eliminated the original internal *** superimposed University,Beijing 100083,People’s Republic of China ultrasonic vibration can effectively uniform the residual stress and thickness distribution,arid improve the forming limit in the case of the small deformation *** addition,through the tensile fracture analysis of the formed part,it is shown that the elongation of material is improved and the elastic modulus and hardening index are *** findings of the present work lay the foundation for a better integration of the ultrasonic vibration system into the incremental sheet forming process.
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