锻压技术

超声振动-电脉冲耦合铝合金薄壁管缩口增厚成形

英文标题：Necking and thickening forming on ultrasonic vibration-electric pulse coupling for aluminum alloy thin-walled tube

单位：1.南昌航空大学航空制造工程学院 2. 西北工业大学航空发动机高性能制造工信部重点实验室

分类号：TG306

出版年,卷(期):页码：2024,49(8):53-58

摘要：

在航空器中，使用缩口增厚管螺纹的连接方式，可以改善传统缩口拉杆铆接带来的增重问题。管件增厚率是缩口增厚成形的重要指标。为进一步增加缩口增厚管的厚度，提出了超声振动-电脉冲耦合缩口增厚成形方法，首先进行了5A02铝合金薄壁管电脉冲耦合缩口增厚成形实验，发现提高电流强度有利于提升管材温度、减小成形抗力、改善管件的屈曲缺陷，以及增加管件厚度；进一步地，开展了超声振动-电脉冲耦合作用下5A02铝合金薄壁管缩口增厚成形实验，结果显示，施加超声振动的管件更早进入增厚成形阶段，成形后增厚区的平均增厚率、增厚区与缩口区的平均增厚率之差更大，说明超声振动与电脉冲耦合工艺利于增厚成形。

In aircraft, the connection type of necked and thickened tube threads can improve the weight gain problem caused by traditional necked tie rod riveting, and the thickening rate of tube is a vital index of necking and thickening forming. Therefore, in order to increase the thickness of the necked and thickened tube, the necking and thickening forming method of ultrasonic vibration-electric pulse coupling was proposed. Firstly, the necking and thickening forming experiments with electric pulse coupling for 5A02 aluminum alloy thin-walled tubes were carried out. And it is found that increasing the current intensity is beneficial to increase the tube temperature, reduce the deformation resistance, avoid the buckling defect of tube as well as increase the tube thickness. Then, the necking and thickening forming experiments with ultrasonic vibration-electric pulse coupling for 5A02 aluminum alloy thin-walled tubes were carried out. The results show that the formed tubes with ultrasonic vibration begin to thicken earlier, and the average thickening rate of the thickened area and the difference of average thickening rate between the thickened and necked areas is greater after forming, which illustrates that the ultrasonic vibration-electric pulse coupling process is beneficial for thickening forming.

基金项目：

国家科技重大专项（J2019-Ⅶ-0014-0154)；江西省自然科学基金资助项目（20224BAB214050）；航空发动机高性能制造工信部重点实验室开放课题资助项目（HPM-2020-01）

作者简介：范玉斌（1987-），男，博士，副教授 E-mail：yubin_fan@nchu.edu.cn 通信作者：徐雪峰（1983-），男，博士，教授 E-mail： xfwinzy@163.com

参考文献：

[1]刘国勇，陈泽民，朱世安，等.多孔薄壁铝型材挤压模具结构[J].锻压技术，2023，48(6)：162-170.

Liu Guoyong，Chen Zemin，Zhu Shian，et al. Structure of extrusion mold for porous thin-walled aluminum profiles[J]. Forging & Stamping Technology，2023，48(6)：162-170.

[2]李轩颖,徐雪峰,王继,等.基于薄壁环压缩的铝合金管材应力-应变行为[J].中国有色金属学报,2017,27(10):2020-2028.

Li X Y, Xu X F, Wang J, et al.Stress-strain behavior of aluminum alloy pipe based on thin-walled ring compression[J].The Chinese Journal of Nonferrous Metals, 2017,27(10):2020-2028.

[3]林继彬,阮金华,张宏昱,等. 电辅助不锈钢/碳钢轧制复合厚度比变化规律[J].锻压技术，2023，48(9)：98-107.

Lin J B，Ruan J H，Zhang H Y，et al. Change law on composite thickness ratio in electrically assisted rolling for stainless steel/carbon steel[J]. Forging & Stamping Technology，2023，48(9)：98-107.

[4]易宏,徐雪峰,李晓冬,等.电辅助5A02薄壁管缩口增厚成形数值模拟与实验研究[J].塑性工程学报,2022,29(12):27-32.

Yi H, Xu X F，Li X D，et al. Numerical simulation and experimental study on electric-assisted necking and thickening forming for 5A02 thin-walled tube[J]. Journal of Plasticity Engineering，2022，29(12): 27-32.

[5]Shao G D,Li H W,Zhen M. A review on ultrasonic-assisted forming: Mechanism, model and process[J]. Chinese Journal of Mechanical Engineering,2021,34(1):147-170.

[6]Ehsan S,Mohammad L,Iman T. Numerical and experimental investigation of the ultrasonic vibration effects on the tube hydroforming process in a die with a square cross-section[J]. International Journal of Advanced Manufacturing Technology,2023,126(1-2):197-207.

[7]Xu T, Dai Z C, Huang J B, et al. Inhibition of adhesive wear in tantalum cup deep drawing by ultrasonic vibration-assisted forming technology[J]. International Journal of Advanced Manufacturing Technology,2023,125(9-10):4353-4361.

[8]Wan W Q, Cheng J F, Xu L H, et al. Investigation on friction characteristics of micro double cup extrusion assisted by different ultrasonic vibration modes[J]. International Journal of Advanced Manufacturing Technology,2022,123(7-8):2549-2560.

[9]Zhai J Q, Guan Y J, Li Y, et al. The surface effect of ultrasonic vibration in double cup extrusion test[J]. Journal of Materials Processing Technology,2022,299:117344.

[10]Liang X, Fan C T, Fu J N, et al. Improve the forming ability of Al-based metallic glass under ultrasonic vibration at room temperature[J]. Frontiers in Materials,2021,8:746955.

[11]Lin J, Li J, Liu T, et al. Evaluation of friction reduction and frictionless stress in ultrasonic vibration forming process[J]. Journal of Materials Processing Technology,2021,288: 116881.

[12]Zhuang X C, Wang J P, Zheng H, et al. Forming mechanism of ultrasonic vibration assisted compression[J]. Transactions of Nonferrous Metals Society of China,2015,25(7):2352-2360.

[13]温彤,陈霞.超声振动对轻合金塑性压缩变形过程的影响[J].机械科学与技术,2013,32(2):221-224.

Wen T, Chen X. Effects of the ultrasonic vibration on the plastic deformation behavior in the compression process of light alloys[J]. Mechanical Science and Technology for Aerospace Engineering, 2013,32(2): 221-224.

[14]黄志祥,陈文亮,姜丽萍,等.超声振动对钛合金铆钉压铆力的影响[J].航空制造技术,2014,454(10):79-82.

Huang Z X, Chen W L, Jiang L P, et al. Influences of ultrasonic vibration on riveting force of titanium alloy rivet[J]. Aeronautical Manufacturing Technology, 2014,454(10):79-82.

[15]曹伯楠,孟宝,赵越超，等.特种能场辅助微塑性成形技术研究及应用[J].精密成形工程,2019,11(3):14-27.

Cao B N, Meng B, Zhao Y C, et al. Research and application of energy field assisted microforming technology[J]. Journal of Netshape Forming Engineering,2019,11(3):14-27.

服务与反馈：

【文章下载】【加入收藏】