锻压技术

航天薄壁弯管零件充液压弯成形技术

英文标题：Hydro-bending technology on aerospace thin-walled elbow parts

作者：林磊杨睿萌贺飞飞钟涵郑森木游文卓

分类号：TG386.3

出版年,卷(期):页码：2021,46(4):63-69

摘要：

针对航天弯管零件在实际生产中材料利用率低、产品质量一致性差等问题，采用充液压弯成形技术代替现有工艺方法,通过单向拉伸试验获得0Cr18Ni9不锈钢薄壁管的基本力学性能，基于有限元仿真平台进行数值模拟，对0Cr18Ni9不锈钢薄壁管的充液压弯成形工艺进行研究，获得了充液压力P、成形半径R、摩擦系数μ对充液压弯成形的影响规律，优化了工艺参数，且通过工艺试验验证了其可行性和准确性。结果表明：合理控制薄壁管的充液压力和成形半径，可以有效提高薄壁管的成形性能；良好的润滑条件能够提高管材的成形性能、显著改善产品的成形质量。

In view of the problems of low material utilization rate and poor product quality consistency in the process of practical production for aerospace elbow parts, the hydro-bending technology was used to replace the existing process method, and the basic mechanical properties of 0Cr18Ni9 stainless steel thin-walled tube were obtained by unidirectional tensile test. Then, the hydro-bending process of 0Cr18Ni9 stainless stee thin-walled tube was studied by the finite element simulation platform, and the influence laws of hydraulic pressure P, forming radius R, and friction coefficient μ on hydro-bending were obtained. Furthermore, the process parameters were optimized, and the feasibility and accuracy were verified by process tests. The results show that the reasonable control of hydraulic pressure and forming radius for thin-walled tube effectively improves the formability of thin-walled tube, and the good lubrication condition increases the formability of tube and significantly improves the forming quality of product.

基金项目：

国家自然科学基金委员会-中国航天科技集团有限公司航天先进制造技术研究联合基金（U1737203）

林磊（1989-），男，硕士，工程师 E-mail：abraham74@163.com

参考文献：

［1］宋鹏. 5A02铝合金弯曲轴线超薄异型管内高压成形研究
［D］. 哈尔滨: 哈尔滨工业大学,2011.

Song P. Research on Hydroforming of 5A02 Aluminum Alloy Curved Thin-walled Tube with Polygonal-sections
［D］. Harbin:Harbin Institue of Technology, 2011.

［2］Schuster C, Loretz C, Klass F，et al. Potentials and limits with hydroforming of aluminium alloys
［A］. Proceedings of the 4th International Conference on Hydroforming
［C］. Fellbach: Mat Info, 2005.

［3］宋鹏,王小松,徐永超，等. 内压对薄壁铝合金管材充液压弯过程的影响
［J］. 中国有色金属学报,2011,21(2):311-317.

Song P, Wang X S, Xu Y C，et al. Influence of internal pressure on hydro-bending of thin-walled aluminum alloy tube
［J］. The Chinese Journal of Nonferrous Metal, 2011,21(2):311-317.

［4］刘泽宇,滕步刚,苑世剑. 内压对薄壁管充液压弯时的影响
［J］. 塑性工程学报,2009,16(4): 35-38.

Liu Z Y, Teng B G, Yuan S J. Effect of internal pressure on thin-walled tubes bending with internal pressure
［J］. Journal of Plasticity Engineering, 2009,16(4):35-38.

［5］詹梅, 杨合, 江志强. 管材弯曲成形的国内外研究现状及发展趋势
［J］. 机械科学与技术, 2004, 23(12): 1509-1514.

Zhan M, Yang H, Jiang Z Q. State of the art of research on tube bending process
［J］. Mechanical Science and Technology, 2004, 23(12): 1509-1514.

［6］Vollertsen F, Sprenger A, Krraus J，et al. Extrusion, channel, and profile bending: A review
［J］. Journal of Materials Processing Technology, 1997, 87: 1-27.

［7］金先玉,李华冠,凌娟，等. 6061铝合金超薄壁管的充液压弯数值模拟与试验
［J］. 塑性工程学报,2015,22(5):69-75.

Jin X Y, Li H G, Ling J，et al. Numerical simulation and experimental investigation on press-bending with internal pressure of ultra thin-walled tube of 6061 aluminum alloy
［J］. Journal of Plasticity Engineering, 2015,22(5):69-75.

［8］金先玉. 6061铝合金超薄壁弯管的充液成形数值模拟与试验研究
［D］. 南京: 南京航空航天大学,2016.

Jin X Y. Numerical Simulation and Experimental Investigation on Press-bending with Internal Pressure of Ultra Thin-walled Tube of 6061 Aluminum Alloy
［D］. Nanjing: Nanjing University of Aeronautics and Astronautics, 2016.

［9］李秋强. 薄壁管充液压弯的数值模拟和实验研究
［D］. 哈尔滨: 哈尔滨工业大学,2011.

Li Q Q. Numerical Simulation and Experimental Research of Thin-walled Tube Press-bending with Internal Pressure
［D］. Harbin: Harbin Institue of Technology, 2011.

［10］吴志佳. 重载商用车过渡桥充液压弯成形研究
［D］. 长春: 吉林大学,2016.

Wu Z J. Study of Heavy Commercial Vehicle Transition Bridge Hydro Bending Forming
［D］. Changchun:Jilin University, 2016.

［11］GB/T 228.1—2010，金属材料拉伸试验第1部分：室温试验方法
［S］.

GB/T 228.1—2010，Metallic materials—Tensile testing—Part 1: Method of test at room temperature
［S］.

［12］庄茁,由小川,廖剑晖，等. 基于ABAQUS的有限元分析和应用
［M］. 北京: 清华大学出版社, 2009.

Zhuang Z，You X C，Liao J H，et al. Finite Element Analysis and Application Based on ABAQUS
［M］.Beijing：Tsinghua University Press, 2009.

［13］苑世剑. 轻量化成形技术
［M］. 北京: 国防工业出版社, 2010.

Yuan S J. Lightweight Forming Technology
［M］. Beijing: National Defense Industry Press, 2010.

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