Transactions of Materials and Heat Treatment

Title：Influence and prediction of transition zone parameters on hydraulic bulging properties for TRB tube

Authors： Zhang Yu Gu Xu Wu Hongliang Sha Hui

Unit： Chongqing Jiaotong University

KeyWords： TRB tube transition zone parameters hydraulic bulging properties discrete way of transition zone forming height BP neural network

ClassificationCode：TG394

year,vol(issue):pagenumber：2017,42(11):99-103

Abstract：

A FEM of tailor-rolled blank (TRB) tube with different transition zone parameters was established, and the new method of discrete irregular transition zone was proposed. Then, the influences of transition curve, thickness difference and length of transition zone for TRB tube on bulging properties were studied, and the orthogonal design was done for the TRB tube hydraulic bulging. Based on the result of numerical simulation, the BP neural network prediction model was established, and the predicted results were compared with the numerical simulation results to verify the accuracy of the predicted results. The result indicates that the parameters have different effects on the bulging proporties, but have a significant influence on the maximum forming height from 6.47 mm to 2.88 mm. Furthermore, the concave arc transition curve has the worst forming properties with the max difference for forming height of 2.88 mm, and the increase of transition zone length is conductive to bulging. However, the forming performance decreases rapidly with the increase of thickness difference, and the forming height difference of the thick side is up to 8.22 mm. The single set of predicted value is within the margin of error, so the prediction model can be used to predict the bulging of TRB tube for other transition zone parameters.

Funds：

重庆市科委自然科学基金计划资助项目（cstc2012 jjA70001）

作者简介：张渝(1975-)，男，博士，副教授，硕士生导师 E-mail：cqjtuzy@cqjtu.edu.cn

Reference：

[1]Koc M， Altan T. An overall review of the tube hydroforming(THF) technology [J].Journal of Materials Processing Technology， 2001， 108: 384-393.

[2]王庆辉，范清风.管材内高压成形工艺研究[J].热加工工艺，2016，45(7):188-190.

Wang Q H， Fan Q F. Research on internal high pressure forming process of tube [J]. Hot Working Technology， 2016， 45(7):188-190.

[3]初冠南，刘钢，苑世剑，等.差厚拼焊管胀形减薄率不均匀性分析[J].机械工程学报，2008，44 (12):238-243.

Chu G N， Liu G， Yuan S J, et al. Study on nonuniformity of thinning raito in hydro-bulging of tailor-welded tubes with different thicknesses[J]. Chinese Journal of Mechanical Engineering ，2008，44(12):238-243.

[4]赵宝岩，张晓胜，张铁顺，等.轧制差厚板在汽车冲压件上的应用[J].锻压技术，2017，42 (3):44-47.

Zhao B Y， Zhang X S， Zhang T S，et al. Application of tailor rolling blank in automobile stamping parts[J]. Forging & Stamping Technology，2017，42(3):44-47.

[5]崔会杰，汪建敏，钱春苗，等. 变截面板方盒形件拉深过程中厚度过渡区移动的研究[J]. 热加工工艺，2012，41 (21):130-133.

Cui H J， Wang J M， Qian C M， et al. Study on thickness transition zone movement of square box in drawing process using tailor rolled blanks[J]. Hot Working Technology， 2012， 41(21):130-133.

[6]张华伟，胡平，刘立忠，等.影响轧制差厚板冲压成形性能的几何参数研究[J].机械设计与制造， 2012，(4):7-9.

Zhang H W， Hu P， Liu L Z， et al. Research on geometric parameters affecting stamping formability of tailor rolled blank[J].Machinery Design & Manufacture， 2012，(4):7-9.

[7]张华伟，刘相华，刘立忠.轧制差厚板盒形件成形性能研究[J].锻压技术，2015，40(9):11-15.

Zhang H W， Liu X H， Liu L Z. Research on formability of box part for tailor rolled blank [J]. Forging & Stamping Technology， 2015， 40 (9):11-15.

[8]Meyer A， Wietbrock B， Hirt G. Increasing of the drawing depth using tailor rolled blanks numerical and experimental analysis [J].International Journal of Machine Tools & Manufacture， 2008， 48: 522-531.

[9]Zhang H W， Liu X H， Liu L Z， et al. Forming limit and thickness transition zone movement for tailor rolled blank during drawing process [J]. Jouranl of Iron and Steel Research， International，2016，23 (3): 185-189.

[10]付书涛，刘相华，卢日环，等.变壁厚吸能盒轴向载荷下压溃实验[J].锻压技术，2016，41(11): 125-129.

Fu S T， Liu X H， Lu R H， et al. Collapse experiment of crush box with variable wall thickness under axial load[J]. Forging & Stamping Technology，2016，41(11): 125-129.

[11]支颖，刘相华，孙涛，等.变厚度轧制过渡区的数学模型研究[J].哈尔滨工程大学学报，2017，38 (4):1-7.

Zhi Y， Liu X H， Sun T， et al. Investigation on mathematical model for the transition zone of tailor rolled blank for variable gauge rolling [J]. Journal of Harbin Engineering University， 2017，38(4):1-7.

[12]Zhao K M， Chun B K， Lee J K. Finite element analysis of tailor-welded blanks[J].Finite Elements in Analysis and Dseign，2001，37:117-130.

[13]胡丽，李欣，程万军，等.基于Autoform的轿车左B柱内上板冲压成形模拟研究[J].模具工业，2015，41(11):19-22.

Hu L， Li X， Cheng W J， et al. Autoform-based stamping simulation study on the upper inner plate of automotive left column B[J]. Die & Mould Industry， 2015，41(11):19-22.

[14]王仙萌.带凸缘筒形件的拉深工艺数值模拟及模具设计[J].锻压装备与制造技术，2015，50(4):61-63.

Wang X M. Numerical simulation and design of drawing process for flanged cylindrical part[J].China Metalforming Equipment & Manufacturing Technology，2015，50(4):61-63.

[15]张涛，樊文欣，郭代峰，等.基于BP神经网络的温挤压模具磨损量预测[J].锻压技术，2017，42(2):178-182.

Zhang T， Fan W X， Guo D F， et al. Prediction on wear loss of warm extrusion die based on BP neural network[J]. Forging & Stamping Technology，2017，42(2):178-182.

[16]王晓莉，穆瑞，张咏琴.基于BP神经网络的薄板成形回弹仿真预测[J].锻压技术，2016，41(6):146-149.

Wang X L， Mu R， Zhang Y Q. Numerical prediction of spring back in sheet metal forming based on BP neural network [J]. Forging & Stamping Technology，2016，41 (6):146-149.

Service：

【This site has not yet opened Download Service】【Add Favorite】