双金属板渐进成形底部鼓包和侧壁鼓凸研究  

Research on Bottom Bulge and Sidewall Bulge of Bimetal Plate in Incremental Forming

作　　者：秦勤[1,2] 李程 何流 臧勇 Qin Qin;Li Cheng;He Liu;Zang Yong(School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China;Shunde Graduate School of University of Science and Technology Beijing,Foshan 520300,China)

机构地区：[1]北京科技大学机械工程学院,北京100083 [2]北京科技大学顺德研究生院,广东佛山520300

出　　处：《稀有金属材料与工程》2021年第9期3270-3279,共10页Rare Metal Materials and Engineering

基　　金：北京科技大学顺德研究生院科技创新专项资金项目(BK19BE009);广东省基础与应用研究基金(2019B1515120070)。

摘　　要：为了从工艺上提高双金属板成形精度,通过实验结合有限元分析的方法探究了不同工艺参数对成形精度的影响,研究表明:成形角度和成形深度分别是影响底部精度和侧壁精度的最关键因素,当成形角度由30°增大至60°时,底部鼓包高度降低29%,侧壁鼓凸量增加18.5%;当工具头直径由10 mm增大至20 mm时,底部鼓包高度下降13%,侧壁鼓凸量下降16%;当下压量由0.5 mm减小至0.2 mm时,底部鼓包高度下降24%,侧壁鼓凸量增加18.3%;最后优选了合理的工艺参数,使得底面鼓包高度下降49%,侧壁鼓凸量下降41%。The variations of forming accuracy of the single point incremental forming were analyzed by a combination of experiment method and finite element method.The results show that the bottom bulge height and the side wall bulging are most affected by the forming angle and forming depth,respectively.These results indicate that the height of the bottom bulge is reduced by 29%and the side wall bulging is increased by 18.5%when the forming angle increases from 30°to 60°.The bulge height of the bottom is decreased by 13%and the side wall bulging is decreased by 16%when the tool head diameter is increased from 10 mm to 20 mm.The height of the bottom bulge is decreased by 24%and the side wall bulging is increased by 18.3%when the step down size decreases from 0.5 mm to 0.2 mm.Finally,reasonable process parameters were optimized,so that the bottom bulge height decreases by 49%,and the side wall bulge decreases by 41%.

关 键 词：单点渐进成形 铜铝复合板 成形精度 工艺参数 

分 类 号：TG306[金属学及工艺—金属压力加工] TB331[一般工业技术—材料科学与工程]