金属快速剪切挤压连接变形的关键参数优化  

Optimization on key parameters for the metal deformation of rapid shear extrusion bonding

作　　者：张双杰[1,2] 李云匣 马世博[1,2] 闫华军[1,2] 毛浩恩[1,2] 

机构地区：[1]河北科技大学材料科学与工程学院,河北石家庄050018 [2]河北科技大学河北省材料近净成形重点实验室,河北石家庄050018

出　　处：《塑性工程学报》2017年第3期69-77,共9页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(51475139);河北省青年科学基金资助项目(E2015208105)

摘　　要：影响金属快速剪切挤压连接板料变形的参数较多,精确建立参数与变形质量之间的关系比较困难。采用工艺实验结合数值模拟的方法分析了单参数变化对板料变形形态的影响,得到了搭接量(B)、压下量(L)、刃口宽(A)、刃口倾角(α)等关键参数对变形形态的影响规律。借助有限元数值模拟软件进行了正交实验模拟,得到了最优的参数组合,通过多元线性回归,得到了关键参数与分析指标间的数学模型。并通过实验验证了数学模型的正确性。Parameters affecting the rapid shear extrusion bonding of metal deformation are more, and it is difficult to establish the rela- tionship between the parameters and the quality of deformation. The influence of single parameter change on the deformation of sheet metal was analyzed by the combination of process experiment and numerical simulation. The influence rules of the key parameters such as over- lap （B）, press quantity （L）, width of the cutting edge （A）, tilt angle of the cutting edge （a） and other key parameters on the deforma- tion pattern were obtained. By means of the finite element numerical simulation software, the optimal parameters combination were found by orthogonal experimental method. The mathematical model between the key parameters and analysis index was established by the method of multiple linear regression. Finally, the correctness of the mathematical model was verified by experiments.

关 键 词：快速剪切挤压连接 参数优化 变形形态 正交实验 

分 类 号：TG316[金属学及工艺—金属压力加工]