Plastic deformation of magnesium alloy with different forming parameters during ultrasonic vibration-assisted single-point incremental forming

作     者：Chun Jian Su Ting Ting Xu Ke Zhang Ke Zhang Shu Mei Lou Qing Wang Chun Jian Su;Ting Ting Xu;Ke Zhang;Shu Mei Lou;Qing Wang

作者机构：College of Mechanical and Electronic EngineeringShandong University of Science and TechnologyQingdao266590China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2022年第41卷第11期

页      面：3878-3886页

核心收录：

学科分类：08[工学] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0703[理学-化学] 080201[工学-机械制造及其自动化] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (No.51305241) the Natural Science Foundation of Shandong Province (No. ZR2014JL040) the Shandong Province Taishan Scholar Construction Project Special Fund (No.tshw20130956)。 

主　　题：Magnesium alloy Ultrasonic vibration Incremental forming Forming parameters Plastic deformation 

摘      要：The research of forming parameters on the ultrasonic vibration single-point incremental forming of magnesium alloy plastic deformation can provide a theoretical basis for the establishment of the forming parameters.According to the forming characteristics of magnesium alloy sheet,a new method of ultrasonic vibration-as sis ted single-point incremental forming was proposed.The influence of forming parameters on the plastic deformation of magnesium alloy was studied by finite element simulation and experimentation.The influence of vibration frequency,amplitude,friction coefficient,and tool head size on stress and thinning rate of magnesium alloy during ultrasonic vibration-as sis ted single-point asymptotic forming was studied.The results show that the vibration frequency of 20 kHz and forming tool radius of about 5 mm are beneficial for plastic deformation magnesium alloy in ultrasonic vibration-assisted single-point incremental forming.With vibration amplitude increasing,the maximum shear stress tends to decrease as a whole,but at the amplitude of 0.16 mm,the thinning rate is large and fracture occurs easily.With friction coefficient increasing,the maximum shear stress tends to increase,and there is a good linear relationship between the maximum thinning rate and the friction coefficient.