GH4169合金超薄带材U形弯曲回弹行为研究

doi:10.3901/JME.2024.14.174

摘要/Abstract

摘要： 以镍基高温合金GH4169超薄带材为研究对象，构建了考虑晶粒尺寸和晶界的本构关系，与通过单拉试验获得的应力应变曲线对比发现，该模型可以较好地预测不同厚度和晶粒尺寸的GH4169超薄带材的流动行为。为分析材料参数和工艺参数对带材U形弯曲回弹的影响，开展了U形弯曲试验。结果表明，回弹角随晶粒尺寸、材料厚度和压边力的增大而减小，而冲压速度对回弹无显著影响。为对比晶粒尺寸、带材厚度、压边力和冲压速度对U形弯曲回弹影响程度的关系，设计了4因素3水平的正交试验，使用所建立的本构模型进行了U形弯曲回弹数值仿真。结果表明，带材厚度对回弹的影响程度最大，其次是压边力和晶粒尺寸，而冲压速度对回弹的影响最小。晶粒尺寸对三个回弹参数的影响均显著，而带材厚度对于回弹角θ₂和回弹半径的影响较显著，但对回弹角θ₁无明显影响，压边力对于回弹角θ₁的影响最为明显，回弹半径ρ次之，对于回弹角θ₂的影响最不明显。

关键词: GH4169超薄带材, U形弯曲, 回弹, 本构模型, 尺寸效应

Abstract: Ni-based superalloy GH4169 ultrathin strip was utilized as the research material, a constitutive model considering grain size and grain boundary was established. Compared with the stress-strain curves obtained by uniaxial tensile test, the model can well predict the flow behavior of GH4169 ultrathin strip with different thickness and grain size. In order to analyze the influence of material parameters and process parameters on the springback, U-bending test were carried out. The test results show that the springback decreases with the increase of grain size, material thickness and blank holder force, and the stamping speed has no significant effect on the springback. In order to compare the influence of grain size, strip thickness, blank holder force and stamping speed on springback parameters of U-bending test, orthogonal tests with four factors and three levels were designed. The numerical simulation of springback parameters of U-bending test was carried out by using the established constitutive model. The simulation results show that strip thickness has the greatest effect on springback, followed by blank holder force and grain size, and stamping speed has the least effect on springback. The grain size has a significant effect on the three springback parameters, while the thickness has a highly significant effect on the springback angle θ₂ and the springback radius, but has no obvious effect on the springback angle θ₁. The effect of blank holder force on the springback angle θ₁ is the most obvious, and the effect of the springback radius ρ is the least obvious on the springback angle θ₂.

Key words: GH4169 ultrathin strip, U-bending test, springback, constitutive model, size effect

中图分类号:

TG386

贺炜林, 孟宝, 万敏. GH4169合金超薄带材U形弯曲回弹行为研究[J]. 机械工程学报, 2024, 60(14): 174-184.

HE Weilin, MENG Bao, WAN Min. Study on U-bending Springback Behavior of GH4169 Ultrathin Strip[J]. Journal of Mechanical Engineering, 2024, 60(14): 174-184.

导出引用管理器 EndNote|Reference Manager|ProCite|BibTeX|RefWorks

链接本文: http://www.cjmenet.com.cn/CN/10.3901/JME.2024.14.174

http://www.cjmenet.com.cn/CN/Y2024/V60/I14/174

参考文献

[1] 万敏，孔融，郑立皇，等. 高温合金超薄带材成形极限预测模型[J]. 锻压技术，2021，46(9)：90-98. WAN Min，KONG Rong，ZHENG Lihuang，et al. Prediction model on forming limit for ultrathin superalloy strip[J]. Forging & Stamping Technology，2021，49(11)：90-98.
[2] MENG B，WAN M，ZHAO R，et al. Micromanufacturing technologies of compact heat exchangers for hypersonic precooled airbreathing propulsion：A review[J]. Chinese Journal of Aeronautics，2021，34(2)：79-103.
[3] 王彦菊，李神龙，贺炜林，等. 高温合金超薄板循环塑性本构模型适用性研究[J]. 材料工程，2021，49(11)：147-155. WANG Yanju，LI Shenlong，HE Weilin，et al. Applicability analysis of cyclic plasticity constitutive model for superalloy foils[J]. Journal of Materials Engineering，2021，49(11)：147-155.
[4] 孟宝，贺炜林，万敏. 航空发动机金属封严环成形回弹预测与控制[J]. 锻压技术，2021，46(9)：145-153. MENG Bao，HE Weilin，WAN Min. Prediction and control of springback for aeroengine metallic sealing ring forming[J]. Forging & Stamping Technology，2021，49(11)：145-153.
[5] 谢延敏，张飞，王子豪，等. 基于渐变凹模圆角半径的高强钢扭曲回弹补偿[J]. 机械工程学报，2019，55(2)：91-97. XIE Yanmin，ZHANG Fei，WANG Zihao，et al. Compensation of twist springback in high-strength steel based on gradient die radius[J]. Journal of Mechanical Engineering，2019，55(2)：91-97.
[6] 靳淇超，汪文虎，蒋睿嵩，等. 压气机叶片辊轧模具型腔回弹补偿方法研究[J]. 机械工程学报，2017，53(16)：148-155. JIN Qichao，WANG Wenhu，JIANG Ruisong，et al. Investigation on springback compensation method for the rolling mold of compressor blade[J]. Journal of Mechanical Engineering，2017，53(16)：148-155.
[7] 韩飞，李荣健. 超高强钢多道次辊弯成形回弹规律研究[J]. 机械工程学报，2019，55(2)：73-81. HAN Fei，LI Rongjian. Springback law of ultra-high strength steel in multiple-pass roll forming process[J]. Journal of Mechanical Engineering，2019，55(2)：73-81.
[8] 段永川，官英平. 拼焊板V形自由弯曲精确回弹控制技术研究[J]. 机械工程学报，2014，50(10)：40-47. DUAN Yongchuan，GUAN Yingping. Development of precise spring-back control system of tailor welded blanks air bending process[J]. Journal of Mechanical Engineering，2014，50(10)：40-47.
[9] KELLER C，HUG E，HABRAKEN A M，et al. Effect of stress path on the miniaturization size effect for nickel polycrystals[J]. International Journal of Plasticity，2015，64：26-39.
[10] GAU J T，PRINCIPE C，MIAN Y. Springback behavior of brass in micro sheet forming[J]. Journal of Materials Processing Tech，2015，191(1-3)：7-10.
[11] LI H Z，DONG X H，SHEN Y，et al. Size effect on springback behavior due to plastic strain gradient hardening in microbending process of pure aluminum foils[J]. Materials Science & Engineering A，2010，527(16-17)：4497-4504.
[12] LIU J G，FU M W，LU J，et al. Influence of size effect on the springback of sheet metal foils in micro-bending[J]. Computational Materials Science，2011，50(9)：2604-2614.
[13] CHEN C C，JIANG C P. Grain size effect in the micro-V-bending process of thin metal sheets[J]. Advanced Manufacturing Processes，2011，26(1)：78-83.
[14] JIANG C P，CHEN C C. Grain size effect on the springback behavior of the microtube in the press bending process[J]. Materials and Manufacturing Processes，2012，27(5)：512-518.
[15] WANG J L，FU M W，RAN J Q. Analysis of the size effect on springback behavior in micro-scaled U-bending process of sheet metals[J]. Advanced Engineering Materials，2014，16(4)：421-432.
[16] XU Z T，PENG L F，BAO E Z. Size effect affected springback in micro/meso scale bending process: Experiments and numerical modeling[J]. Journal of Materials Processing Technology，2018，252：407-420.
[17] FANG Z，JIANG Z Y，WANG X G，et al. Effect of grain size on springback and system energy in micro V-bending with phosphor bronze foil[J]. Metallurgical and Materials Transactions A，2015，47(1)：488-493.
[18] HUANG G S，WANG Y X，WANG L F，et al. Effects of grain size on shift of neutral layer of AZ31 magnesium alloy under warm condition[J]. Transactions of Nonferrous Metals Society of China，2015，25(3)：732-737.
[19] MA Z W，TONG G Q，CHEN F，et al. Grain size effect on springback behavior in bending of Ti-2.5Al-1.5Mn foils[J]. Journal of Materials Processing Technology，2015，224：11-17.
[20] ZHENG Q，SHIMIZU T，YANG M. Scale effect on springback behavior of pure titanium foils in microbending at elevated temperature[J]. Journal of Materials Processing Technology，2015，230：233-243.
[21] LIU X Y，ZHAO S P，QIN Y，et al. Size effects on the springback of CuZn37 brass foils in tension and micro W-bending[J]. Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture，2017，232(14)：2439-2448.
[22] WANG C J，WANG S，WANG S T，et al. Investigation on springback behavior of Cu/Ni clad foils during flexible die micro V-bending process[J]. Metals，2019，9(8)：892-902.
[23] 林晓娟. 微厚度板料成形数值模拟建模及弯曲回弹的尺寸效应研究[D]. 济南：山东大学，2014. LIN Xiaojuan. Study on numerical simulation modeling of micro thickness sheet metal forming and size effect of bending springback[D]. Jinan：Shandong University，2014.
[24] 凌伟文. SUS304不锈钢薄板微流道弯曲成形实验研究[D]. 杭州：浙江大学，2020. LING Weiwen. Numerical simulation and experimental study the springback of microbending for SUS304 stainless Steel Sheet[D]. Hangzhou：Zhejiang University，2020.
[25] 郑秋，清水澈英，古岛刚，等. 电加热辅助微弯曲成形中纯钛箔材变形行为的晶粒尺寸效应[J]. 塑性工程学报，2022，29(2)：90-94. ZHENG Qiu，SHIMIZU T，FURUSHIMA T，et al. Grain size effect on deformation behavior of pure titanium foils in resistance heating assisted microbending forming[J]. Journal of Plasticity Engineering，2022，29(2)：90-94.
[26] 朱英霞，万苗苗，陈炜，等. 铜钛双金属复合管绕弯成形回弹的尺寸效应研究[J]. 材料科学与工艺，2021，29(6)：10-17. ZHU Yingxia，WAN Miaomiao，CHEN Wei，et al. Size effect of springback on rotary-draw bending of copper-titanium composite tube[J]. Materials Science and Technology，2021，29(6)：10-17.
[27] 曹圆圆. SUS304不锈钢箔电流辅助微弯曲成形工艺研究[D]. 哈尔滨：哈尔滨工业大学，2021. CAO Yuanyuan. Research on current-assisted micro-bending process of SUS304 stainless steel foil[D]. Harbin：Harbin Institute of Technology，2021.
[28] HE W L，MENG B，SONG B Y，et al. Grain size effect on cyclic deformation behavior and springback prediction of Ni-based superalloy foil[J]. Transactions of Nonferrous Metals Society of China，2022，32(4)：1188-1204.
[29] GEIGER M，GEISSDORFER S，ENGEL U. Mesoscopic model-advanced simulation of microforming processes[J]. Production Engineering-Research and Development，2007，1(1)：79-84.
[30] GEIGER M，VOLLERTSEN F，KALS R. Fundamentals on the manufacturing of sheet metal microparts[J]. CIRP Annals-Manufacturing Technology，1996，45(1)：277-282.