锻压技术

基于超声检测不同联拉工艺下TP2铜管的轴向壁厚均匀性

英文标题：Axial wall thickness uniformity of TP2 copper tube under different joint drawing processes based on ultrasonic testing

作者：岳峰丽1 沙琢1 陈大勇2 3 孙红运1 刘劲松1 2 3 陈传来3 王辉3

单位：（1.沈阳理工大学汽车与交通学院辽宁沈阳 110159 2.中国科学院金属研究所师昌绪材料创新中心辽宁沈阳 110016 3.常州润来科技有限公司江苏常州 213149）

关键词：TP2铜管联合拉拔超声检测壁厚不均匀性壁厚减薄率

分类号：TG146.1

出版年,卷(期):页码：2024,49(9):57-67

摘要：

铜管铸坯经三辊行星旋轧后，管坯轴向壁厚存在不均匀现象，影响联合拉拔管坯的壁厚均匀性。针对此问题，首先基于超声检测原理，自主研发了轧后在线超声检测新型设备，开展了TP2铜管壁厚在线测量试验。在此基础上，利用试验数据建立联合拉拔铜管管坯的几何模型。其次，采用有限元模拟，分析不同联拉工艺对联拉后铜管壁厚均匀性的影响，并建立了铜管轴向壁厚均匀性的评价公式。研究结果表明：初始管材壁厚不均匀度会提高拉拔过程中拉拔力的波动，增大芯头轴向位移的距离；适当增加壁厚减薄率可以改善游动芯头拉拔后铜管轴向壁厚的不均匀度；随着壁厚减薄率的增加，拉拔过程中的径向应力及游动芯头位移的波动越大。该研究对游动芯头拉拔工艺中管材的轴向壁厚均匀性调控具有指导及借鉴意义。

After the three-roll planetary rotary rolling of copper tube billet, there is an uneven phenomenon in the axial wall thickness of tube billet, which affects the wall thickness uniformity of tube billet by joint drawing. Therefore, in response to this problem, based on the principle of ultrasonic testing, a new type of online ultrasonic testing equipment after rolling was developed independently, and the online measurement experiment for the wall thickness of TP2 copper tube was conducted. Then, based on these experiments, a geometric model of copper tube billet by joint drawing was established by experimental data. Furthermore, the finite element simulation was used to analyze the influence of different joint drawing processes on the wall thickness uniformity of copper tube after joint drawing, and an evaluation formula for the axial wall thickness uniformity of copper tube was established. The research results indicate that the unevenness of initial tube wall thickness increases the fluctuation of drawing force during the drawing process and increases the distance of axial displacement of core head. Appropriately increasing the wall thickness reduction rate can improve the unevenness of axial wall thickness for copper tube after the moving core head is drawn. As the wall thickness reduction rate increases, the fluctuations in radial stress and displacement of moving core head during the drawing process become greater, which has guiding and reference significance for regulating the axial wall thickness uniformity of tubes in the drawing process of moving core head.

基金项目：

基金项目:2022年度辽宁省教育厅基本科研项目(LJKMZ20220591)；常州市领军型创新人才引进培育项目（CQ20220057）

作者简介：岳峰丽（1970-），女，硕士，副教授 E-mail：flyue@163.com

参考文献：

[1］刘劲松,孙扬乐,陈大勇,等.铜及铜合金管材三辊行星旋轧研究及应用现状\[J］.锻压技术,2024,49(6):14-25.

Liu J S, Sun Y L,Chen D Y, et al. Status of research and application on three-roll planetary rolling for copper and copper alloy tubes \[J］.Forging & Stamping Technology, 2024,49(6):14-25.

\[2］曾艳祥,姜志宏,许永强,等.H62铜合金本构模型构建及游动芯头拉拔力影响分析\[J］.科学技术与工程,2016,16(28):171-174.

Zeng Y X, Jiang Z H, Xu Y Q, et al. Construction of H62 copper alloy constitutive model and analysis of the influence of the drawing force on the floating plug \[J］. Science Technology and Engineering, 2016,16(28):171-174.

\[3］ Djavanroodi F,Zolfaghari A A, Ebrahimi M,et al.Equal channel angular pressing of tubular samples \[J］.Acta Metallurgica Sinica, 2013, 26(5):574-580.

\[4］姜志宏,姜晓锋,许永强.薄壁铜管游动芯头低频振动拉拔力影响规律\[J］.特种铸造及有色合金,2019,39(1):113-116.

Jiang Z H, Jiang X F, Xu Y Q. Law of affecting low-frequency vibration pulling force of thin-walled copper tube swimming core \[J］. Special Casting & Nonferrous Alloys,2019,39(1):113-116.

\[5］余志远,王昌,汶斌斌,等.AZ31镁合金管材游动芯头拉拔有限元模拟\[J］.材料导报,2018,32(16):2778-2782.

Yu Z Y, Wang C, Wen B B, et al. FEM simulation for the floating-plug drawing process of AZ31 magnesium alloy tube \[J］.Materials Reports,2018,32(16):2778-2782.

\[6］李旭,姜志宏,许永强,等.管坯壁厚不均匀缺陷对铜管游动芯头拉拔过程影响分析\[J］.江西理工大学学报,2017,38(5):87-91.

Li X, Jiang Z H, Xu Y Q, et al. Impact analysis of the uneven wall thickness on the drawing process of copper floating core head \[J］.Journal of Jiangxi University of Science and Technology,2017,38(5):87-91.

\[7］陈岩,肖桥平,李坤,等.超薄超细智能手机热管拉拔工艺及组织性能演变\[J］.锻压技术,2022,47(8):111-117.

Chen Y,Xiao Q P,Li K, et al.Drawing process and evolution of microstructure and properties for heat pipe of ultra-thin and super-fine in smartphone\[J］.Forging & Stamping Technology,2022,47(8):111-117.

\[8］ Niknamian S.Investigation on the effect of cold drawing process on mechanical properties and structure of seamless steel (Ck60) tube\[J］.Research Gate,2019(1):13-23.

\[9］曹益忠,袁豪,哈达,等.拉拔自激振动方程及其数值算法分析\[J］.锻压技术,2024,49(5):76-83.

Cao Y Z,Yuan H,Ha D, et al.Analysis on drawing self-excited vibration equation and its numerical algorithm \[J］.Forging & Stamping Technology, 2024,49(5):76-83.

\[10］刘劲松,陈大勇,张士宏.基于数值模拟的TP2铜管三联拉工艺优化\[J］.中国有色金属学报,2015,25(2):458-465.

Liu J S, Chen D Y, Zhang S H. Optimization of triple TP2 copper tube drawing process based on numerical simulation\[J］.Chinese Journal of Nonferrous Metals,2015,25(2):458-465.

\[11］王顺,刘劲松,陈岩,等.铜管拉拔工艺智能计算平台开发\[J］.铜业工程,2020(6):95-100.

Wang S, Liu J S, Chen Y, et al. Development of intelligent calculation platform for copper tube drawing process \[J］.Copper Engineering,2020(6):95-100.

\[12］Palengat M, Chagnon G, Favier D,et al. Cold drawing of 316L stainless steel thin-walled tubes: Experiments and finite element analysis\[J］. International Journal of Mechanical Sciences, 2013, 70: 69-78.

\[13］Bihamta R, Bui Q H, Guillot M, et al. A new method for production of variable thickness aluminium tubes: Numerical and experimental studies\[J］.Journal of Materials Processing Technology, 2011, 211(4): 578-589.

\[14］Pernis R, Kasala J. The influence of the die and floating plug geometry on the drawing process of tubing\[J］. The International Journal of Advanced Manufacturing Technology, 2013, 65(5/8): 1081-1089.

\[15］王金明,徐生林,张志恒，等.游动芯头拉伸铜毛细管综合工艺试验研究\[J］.有色金属加工,1995(1):1-8.

Wang J M, Xu S L, Zhang Z H,et al. Experimental study on the comprehensive process of drawing copper capillary with moving mandrel\[J］.Nonferrous Metals Processing,1995(1):1-8.

\[16］刘新华,林一良,付华栋,等.毛细铜/钛复合管材的游动芯头拉拔制备及组织性能\[J］.工程科学学报,2017,39(3):417-425.

Liu X H, Lin Y L, Fu H D, et al. Preparation of the capillary copper /titanium composite pipe by floating-plug drawing processing and its microstructure and properties \[J］.Journal of Engineering Science,2017,39(3):417-425.

\[17］王彦民，黄站立，吴振亭.薄壁铜管空拔过程中应力应变的数值模拟分析\[J］.热加工工艺，2011，40(15):81-84.

Wang Y M, Huang Z L, Wu Z T. Analysis on simulation of stress-strain in empty drawing procedure for copper tube \[J］.Hot Working Technology,2011,40(15):81-84.

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