锻压技术

基于Dynaform的消音管液压胀形数值模拟

英文标题：Numerical simulation on tube hydroforming for a silencer based on Dynaform

作者：王海艳李媛媛宋爱利姜云春黄彬兵

单位：青岛黄海学院清华大学

分类号：TG394

出版年,卷(期):页码：2018,43(10):91-94

摘要：

对管件的液压胀形工艺进行了研究，在此基础上以消音管为例进行了液压胀形数值模拟。基于Dynaform仿真软件，分析了消音管的成形过程，并对其成形极限和厚度变化情况进行了研究。针对液压胀形过程中出现的胀裂缺陷，通过优化加载路径等得到了合格的消音管成形状态，零件的最大变薄率为29.6%。在数值模拟的基础上，根据最佳工艺方案进行了实际液压胀形试验，比较了仿真结果与试验结果的零件厚度，其相对偏差均在3%以内，并且相对变化趋势一致。研究结果表明，基于数值模拟的液压胀形仿真分析可以准确预测零件成形状态，从而提升设计生产效率。

The hydroforming process of tube was studied, and the numerical simulation of tube hydroforming for a silencer was conducted. Then, the forming process of the silencer was analyzed by simulation software Dynaform, and the forming limit and the thickness variation were studied. For the splitting defect during the hydroforming process, the qualified silencer was formed by optimizing the loading path etc. And the maximum thinning rate of parts is up to 29.6%. Based on the numerical simulation, the actual hydroforming test was carried out according to the best technological scheme, and the thicknesses of parts were compared by the simulation results and the experiment results. Furthermore, the relative deviation is less than 3%, and the relative variation trend is consistent. The research results show that the simulation and analysis of hydroforming based on numerical simulation can accurately predict the forming state of parts and improve the efficiency of design and production.

基金项目：

江苏省产学研前瞻性联合研究项目（BY2014069）

王海艳（1979-），女，硕士，副教授，E-mail：541101645@qq.com

参考文献：

[1]刘立君, 王宇. 消音管内高压成形焊缝区胀裂数值分析[J]. 哈尔滨理工大学学报, 2015, 20(2):91-96.

Liu L J, Wang Y. Numerical analysis of weld zone splitting during silencer tube hydroforming[J]. Journal of Harbin University of Science and Technology, 2015, 20(2):91-96.

[2]贾宇坤, 罗建斌, 李健, 等. 轿车加强梁内高压成形规律的仿真研究[J]. 锻压技术, 2017, 42(2):183-188.

Jia Y K, Luo J B, Li J, et al. Simulation study on the hydroforming regulation of reinforcing beam of car[J]. Forging & Stamping Technology, 2017, 42(2):183-188.

[3]刘静, 王有龙, 李兰云, 等. 工艺参数对双层304不锈钢波纹管液压胀形回弹的影响[J]. 锻压技术, 2017, 42(6):70-76.

Liu J, Wang Y L, Li L Y, et al. Effect of process parameters on springback of bi-layered 304 stainless steel bellows in hydroforming[J]. Forging & Stamping Technology, 2017, 42(6):70-76.

[4]刘静, 黄卫良, 李霄, 等. 单双层U形不锈钢波纹管液压胀形变形特征对比研究[J]. 锻压技术, 2016, 41(5):24-28.

Liu J, Huang W L, Li X, et al. Comparative study on deformation behavior of single and bi-layered U-shaped stainless steel bellows in hydroforming [J]. Forging & Stamping Technology, 2016, 41(5):24-28.

[5]张渝, 顾栩, 巫洪亮, 等. 过渡区参数对TRB管液压胀形性能的影响及预测[J].锻压技术, 2017, 42(11):99-104.

Zhang Y, Gu X, Wu H L, et al. Influence and prediction of transition zone parameters on hydraulic bulging properties for TRB tube[J]. Forging & Stamping Technology, 2017, 42(11):99-104.

[6]韩聪, 孙立宁, 苑世剑, 等. 轿车底盘前梁内高压成形试验研究[J]. 锻压技术, 2009, 34(5):62-66.

Han C, Sun L N, Yuan S J, et al. Experimental research on hydroforming of car chassis front frame[J]. Forging & Stamping Technology, 2009, 34(5):62-66.

[7]王同海, 孙胜. 管材胀形工艺分类及其变形力学特征[J]. 锻压技术, 1999, 24(4):30-32.

Wang T H, Sun S. Classification of bulging forming on tube and its deforming mechanical features[J]. Forging & Stamping Technology, 1999, 24(4):30-32.

[8]唐伟, 杨晨. SS304微型管件的液压胀形[J]. 塑性工程学报, 2016, 23(4):42-47.

Tang W, Yang C. Study on the hydroforming of SS304 micro tubes[J]. Journal of Plasticity Engineering, 2016, 23(4):42-47.

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