某变径管状零件液压成形加载路径优化研究  

Study on Hydroforming Loading Path Optimization of a Variable Diameter Tubular Part

作　　者：杨家春 李健[1] 李彦君 谢国安 梁鹏[1] YANG Jiachun;LI Jian;LI Yanjun;XIE Guoan;LIANG Peng(School of Mechanical and Automotive Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China)

机构地区：[1]广西科技大学机械与汽车工程学院,广西柳州545616

出　　处：《机械工程师》2024年第8期61-66,70,共7页Mechanical Engineer

摘　　要：针对现有管件液压成形加载路径优化方法实用性差的问题,提出了试错仿真分析与二分法相结合的加载路径优化方法。首先,通过分析变径管的几何数模、管材力学特性及成形工艺,设计了变径管液压成形模具。其次,进行变径管液压成形实验,与仿真结果进行对比,证明了有限元模型及仿真方法的正确性。最后,利用试错仿真分析与二分法相结合的加载路径优化方法,对变径管液压成形进行加载路径优化,得到了最优加载路径,为管材液压成形加载路径优化方法的工程化应用提供参考。In order to solve the problem of poor practicability of existing load path optimization methods for pipe fitting hydroforming,this paper proposes a load path optimization method combining trial and error simulation analysis and bisection method.Firstly,by analyzing the geometric model,mechanical characteristics and forming process of the variable diameter pipe,the hydraulic forming die of the variable diameter pipe is designed.Secondly,the hydroforming experiment of variable diameter pipe is carried out,and the correctness of the finite element model and simulation method is proved by comparing with the simulation results.Finally,the loading path optimization method combined with trial and error simulation analysis and bisection method is used to optimize the loading path of variable diameter pipe hydroforming,and the optimal loading path is obtained,which provides reference for the engineering application of the loading path optimization method of pipe hydroforming.

关 键 词：管材液压成形 变径管 有限元分析 二分法 试错法 加载路径 

分 类 号：TG394[金属学及工艺—金属压力加工]