四通管内高压成形的工艺优化和分析  

Optimization and Analysis of Hydroforming Process for Four-way Pipe

作　　者：刘晓晶[1] 陈龙[1] 陈晓晓[1] 王雅为 冯章超 LIU Xiao-jing;CHEN Long;CHEN Xiao-xiao;WANG Ya-wei;FENG Zhang-chao(School of Material Science and Engineering,Harbin University of Science and Technology,Harbin 150040,China)

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《哈尔滨理工大学学报》2018年第5期143-146,共4页Journal of Harbin University of Science and Technology

基　　金：黑龙江省自然科学基金(E201102);哈尔滨市人才基金(2017RAXXJ008)

摘　　要：基于Dynaform软件,建立四通管内高压成形的有限元模型。选取初始进给量、初始内压力、中间内压力作为设计变量,成形后管件的最小壁厚和最大壁厚为设计目标,基于Box-Behnken Design实验设计和响应曲面法,分别建立以管件的最小壁厚和最大壁厚为目标的响应面模型。通过数值模拟的方法研究了各个参数对成形管件的影响,并通过方差和回归分析,确定了模型的最优参数。将模型预测的因素值进行有限元数值模拟后得到的结果与模型得出的结果值的误差率小于1%,验证了模型的可靠性。结果表明,通过响应面法和数值模拟可以快速获得质量较好的四通管类零件成形工艺参数。Based on Dynaform,a finite element model of hydroforming for four-way pipe was built.Through the initial feed rate,initial internal pressure,and the intermediate pressure were selected as the design variables,taking the minimum and maximum wall thickness of the post-forming for tube as design aim.Based on Box-Behnken Design and response surface method,the response surface model was established for the goals of minimum and maximum wall thickness of tube,the effects of various parameters on the forming tube by numerical simulation was studied,and the optimal parameters of the model was determined through variance and regression analysis.The result of model’s predicted factor through finite element simulation,compared with the result of the model,the error rate was less than 1 percent,therefore the reliability of the model was verified.The results showed that high-quality forming process parameters four-tube part could be quickly got through response surface method and numerical simulation.

关 键 词：四通管 响应面法 数值模拟 回归分析 

分 类 号：TG394[金属学及工艺—金属压力加工]