文献类型：期刊文章

作　　者：庄新村[1] 王家鹏[1] 郑欢[1] 赵震[1]

机构地区：[1]上海交通大学材料科学与工程学院塑性成形技术与装备研究院,上海200030

出　　处：《Transactions of Nonferrous Metals Society of China》

基　　金：Project(51105250)supported by the National Natural Science Foundation of China;Project(P2015-13)supported by the State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science and Technology,China

年　　份：2015

卷　　号：25

期　　号：7

起止页码：2352-2360

语　　种：中文

收录情况：AJ、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2015_2016、EBSCO、EI、IC、INSPEC、JST、SCI(收录号：WOS:000359325300031)、SCI-EXPANDED(收录号：WOS:000359325300031)、SCIE、SCOPUS、WOS、ZGKJHX、普通刊

摘　　要：To study the mechanism of ultrasonic vibration assisted forming,the static and vibration assisted compression tests of aluminum 1050 were carried out via a 25 kHz high-frequency ultrasonic vibration device.It is found that vibration reduces the flow resistance and improves the surface topography.The force reduction level is proportional to the ultrasonic vibration amplitude.By using numerical simulation of static and vibration assisted compression tests,the deformation characteristics of material were investigated.Throughout the vibration,the friction between the materials and tools reduces.The stress superposition and friction effects are found to be two major reasons for reducing the force.However,the force reduction because of stress superposition and friction effects is still less than the actual force reduction from the tests,which suggests that softening effect may be one of the other reasons to reduce the force.

关 键 词：ultrasonic vibration  compression  stress superposition  friction effect  

分 类 号：TG115.5] TG146.21]