锻压技术

薄壁多腔挤压件的充液镦压校形工艺

英文标题：Hydro-forging correction process on thin-walled extrusion part with multi-cavity

作者：孙磊林才渊郭晓琳初冠南

单位：哈尔滨工业大学(威海) 哈工大(威海)创新创业园有限责任公司北京航星机器制造公司

分类号：TG39

出版年,卷(期):页码：2021,46(4):50-55

摘要：

为了减小甚至消除薄壁多腔构件经热加工后的变形，提出了一种新的充液镦压校形工艺。其核心思想为在内压支撑下通过轴向压缩变形改变零件截面的应力分布来提高形状精度。为了验证该工艺的可行性，以6005-T6铝合金薄壁多腔热挤压件为研究对象，进行充液镦压校形有限元模拟和实验验证。结果表明：充液镦压校形工艺可以有效减少试验件在热加工后的变形、提高其形状精度。当内压为10 MPa、压缩量为12 mm时，充液镦压获得的试验件形状与所需形状完全一致。同时，内压卸载前后位移的分布结果显示，试验件压缩变形后的位移分布变化较小，说明卸载后回弹较小，满足设计要求。

To reduce or even eliminate the deformation of thin-walled extrusion part with multi-cavity after hot forming process, a new hydro-forging correction process was proposed, and the core idea was that the stress distribution of part was changed by axial compression deformation under the supporting of internal pressure to improve the shape accuracy. For 6005-T6 aluminum alloy thin-walled extrusion part with multi-cavity, the experiments and finite element simulation of hydro-forging correction process were conducted to verify its feasibility. The results show that the deformation of part after hot forming is significantly decreased, and the shape accuracy is improved by the hydro-forging correction process. When the internal pressure of 10 MPa and the compression amount of 12 mm are used, the shape of part obtained by the hydro-forging correction process is consistent with the desired shape. Furthermore, the results of displacement distribution before and after unloading show that the change of displacement distribution is little after compression deformation of part, indicating that the springback of part after unloading is small and meets the design requirements.

基金项目：

国家基金委航天联合基金重点项目(U1937205)；国家自然基金面上项目 (51475121)；山东省重大科技创新工程（2019TSLH0103）

孙磊 (1989-)，男，博士，助理研究员 E-mail：szhhit@163.com 通讯作者：初冠南 (1979-)，男，博士，教授 E-mail：chuguannan@hit.edu.cn

参考文献：

［1］陈浩, 曲中兴, 张立武. 航空航天整体结构件新型校形技术研究现状
［J］. 航天制造技术，2017, (1): 11-16.

Chen H, Qu Z X, Zhang L W. Research status of new correction technology of aerospace monolithic component
［J］. Aerospace Manufacturing Technology, 2017, (1): 11-16.

［2］Heinz A, Haszler A, Keidel C, et al. Recent development in aluminum alloys for aerospace applications
［J］. Material Science and Engineering A, 2000, 280: 102-107.

［3］路来骁. 航空梁类铝合金结构件滚压变形校正理论及方法研究
［D］.济南：山东大学, 2018.

Lu L X. Investigation on the Mechanism and Method of Rolling Distortion Correcting for Aeronautical Beam Components Made of Aluminum Alloy
［D］. Jinan: Shandong University, 2018.

［4］Volegov I F, Polyakov A P, Kolmogorov S V. Mathematical model of rail straightening and experimental estimation of its adequacy
［J］. Journal of Materials Processing Technology, 1994, 40(1-2): 213-218.

［5］Kuwabara T, Kumano Y, Ziegelheim J, et al. Tension-compression asymmetry of phosphor bronze for electronic parts and its effect on bending behavior
［J］. International Journal of Plasticity, 2009, (25): 1759-1776.

［6］康小明. 大型整体结构件加工变形问题研究
［D］. 杭州: 浙江大学, 2002.

Kang X M. Research on the Mechanism of Machining Distortions in Manufacturing Large Integrated Aircraft Parts
［D］. Hangzhou: Zhejiang University, 2002.

［7］孙杰, 柯映林, 吴群, 等. 大型整体结构件数控加工变形校正的关键技术研究
［J］. 机械工程学报, 2003, 39(8): 120-124.

Sun J, Ke Y L, Wu Q, et al. Study on key technologies of straightening large-scale integrated parts distortion due to machining
［J］. Chinese Journal of Mechanical Engineering, 2003, 39(8): 120-124.

［8］张洪伟, 张以都, 吴琼, 等.航空整体结构件加工变形校正技术研究
［J］.兵工学报. 2010, (8): 1072-1077.

Zhang H W, Zhang Y D, Wu Q, et al. Research on deformation straightening for aeronautical monolithic components
［J］. Acta Armamentarii, 2010, (8): 1072-1077.

［9］崔洪才. 6063铝合金焊接收缩变形的火焰矫正
［J］.金属加工：热加工，2010，(14): 66-67.

Cui H C. Flame correction of welding shrinkage deformation of 6063 aluminum alloy
［J］. MW Metal Forming, 2010, (14): 66-67.

［10］祝世强, 王大刚, 王新宇, 等.TC4钛合金曲母线回转体蒙皮成形工艺
［J］.锻压技术，2020, 45(6): 107-110.

Zhu S Q, Wang D G, Wang X Y, et al. Forming process of rotary skin with curved generatrix for TC4 titanium alloy
［J］. Forging & Stamping Technology, 2020, 45(6): 107-110.

［11］Geiger M. Synergy of laser material processing and metal forming
［J］. Annals of CIRP, 1994, 43(2): 563-570.

［12］Ueda T, Wakimura Y, Furumoto T, et al. Experimental investigation on laser flattening of sheet metal
［J］. Optics and Lasers in Engineering, 2011, 49(1): 137-144.

［13］陈石, 胡建华, 孙樊, 等. 铝合金曲面零件电磁校形试验研究
［J］. 武汉理工大学学报，2010, 32(19)：36-38.

Chen S, Hu J H, Sun F, et al. Experimental research on electromagnetic bending and sizing of complex curved parts
［J］. Journal of Wuhan University of Technology, 2010, 32(19)：36-38.

［14］陈星. 超声波喷丸校形的应用研究
［D］. 南京：南京航空航天大学，2013.

Chen X. Research of Ultrasonic Shot Peening Technology in Straightening
［D］. Nanjing: Nanjing University of Aeronautics and Astronautics, 2013.

［15］Ribeiro F C, Marinho E P, Inforzat D J, et al. Creep age forming: A short review of fundaments and applications
［J］. Journal of Achievements in Materials & Manufacturing Engineering, 2010, 43(1): 353-361.

［16］姜亦涛，孙杰，王中秋，等. 振动时效技术在航空整体结构件变形校正中的应用研究
［J］. 山东大学学报：工学版, 2009, 39(2): 82-86.

Jiang Y T, Sun J, Wang Z Q, et al. Study of the application of vibration stress relief in distortion correcting of aerospace monolithic components
［J］.Journal of Shandong University：Engineering Science, 2009, 39(2): 82-86.

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