目的 揭示进给速度和辗扩比对异形锥辊辗扩成形L形环件过程中温度与等效塑性应变分布均匀性的影响规律,为该工艺的发展提供理论依据。方法 依托ABAQUS有限元分析平台,运用动态显式积分算法,构建了针对异形截面环件在径向与轴向复合轧制过程中的三维热-力耦合数值仿真模型。以锥辊进给速度与环件辗扩比为核心的工艺参数,系统研究了这2类关键成形条件对异形环件热辗扩过程中温度及等效塑性应变分布的影响规律。结果 随着进给速度的增加,环件整体温度提高,等效塑性应变呈下降趋势,整体温度分布和等效塑性应变分布的均匀性均有所提高。当锥辊的进给速度为2 mm/s时,环件整体的温度及等效塑性应变分布的均匀性较好。随着环件辗扩比的增加,其整体温度逐渐降低,等效应变则持续上升,与此同时,温度场的分布均匀性得到改善,而等效应变的均匀性却呈下降趋势。当辗扩比为1.6时,成形件的等效塑性应变分布均匀性好。结论 在异形环件轧制成形过程中,较高的进给速度有助于促进金属流动,从而提高环件整体温度和等效应变分布的均匀程度;在较小的辗扩比下,能够提升整体等效应变分布的均匀性,但温度分布的均匀性会略微降低。
Abstract
The work aims to elucidate the effect of feed rate and rolling ratio on the uniformity of temperature and equivalent plastic strain distribution during the rolling and expanding of L-shaped rings with conical rollers, thereby providing a theoretical basis for the development of this process. With the ABAQUS finite element analysis platform and the dynamic explicit integration algorithm, a three-dimensional thermal-force coupling numerical simulation model was developed for the radial and axial compound rolling process of ring parts with irregular cross-sections. A systematic study was conducted to analyze the spatial distribution characteristics of temperature and equivalent plastic strain during the hot rolling and expanding process of special-shaped ring parts, with particular emphasis on the conical roller's feed rate and the ring's rolling ratio as key affecting parameters. Raising the feed rate resulted in an increase in the ring's average temperature, whereas the equivalent plastic strain tended to decrease. Additionally, both the temperature field and equivalent plastic strain distribution became more uniform. At a conical roller feed rate of 2 mm/s, the uniformity of the overall temperature and equivalent plastic strain distribution in the ring was favorable. As the rolling ratio of the ring increased, the overall temperature showed a decreasing trend, while the equivalent strain gradually increased. Furthermore, the uniformity of the overall thermal distribution within the ring became more uniform, yet the uniformity of the equivalent strain showed a gradual deterioration. At a rolling ratio of 1.6, the distribution of equivalent plastic strain in the formed part exhibited acceptable uniformity. During the rolling forming process of special-shaped ring parts, a higher feed rate enhances the fluidity of the metal and improves the uniformity of temperature and equivalent strain distribution throughout the entire ring. Conversely, a reduced rolling ratio enhances the uniformity of the overall equivalent strain distribution but marginally reduces thermal uniformity.
关键词
异形 /
有限元仿真 /
径-轴向辗扩 /
热辗扩 /
ABAQUS
Key words
special-shaped /
finite element simulation /
radial-axial rolling /
hot rolling /
ABAQUS
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] GONG X T, YANG F.Research of PEEQ for Conical Ring with Outer Steps Ring Rolling[J]. Physics Procedia, 2012, 25: 257-261.
[2] TIAN D Y, HAN X H, HUA L, et al.Constraining Ring Rolling of Thin-Walled Conical Rings with Transverse Ribs[J]. International Journal of Mechanical Sciences, 2022, 226: 107394.
[3] 令狐冰冰. 基于数值模拟的直薄壁法兰件辗扩成形精度控制及工艺参数研究[D]. 太原: 太原科技大学, 2023: 3-4.
LINGHU B B.Research on Precision Control and Process Parameters of Straight Thin-walled Flange Rolling Based on Numerical Simulation[D]. Taiyuan: Taiyuan University of Science and Technology, 2023: 3-4.
[4] LI X C, GUO L G, CHEN X Q, et al.Towards a Blank Design Method for Manufacturing Big-Tapered Profiled Ring Disk by Spinning-Rolling Process[J]. Chinese Journal of Aeronautics, 2025, 38(1): 103044.
[5] FENG W, ZHAO P.Buckling Defect Optimization of Constrained Ring Rolling of Thin-Walled Conical Rings with Inner High Ribs Combining Response Surface Method with FEM[J]. Metals, 2024, 14(4): 378.
[6] HAN Y, WANG M H, SU H, et al.Optimizing Profiled Ring Preforms for Enhanced Deformation Uniformity Using the Isothermal Field Method[J]. Thin-Walled Structures, 2024, 202: 112140.
[7] 顾森东, 张立文, 张驰, 等. L形截面环件径轴向轧制过程数值模拟与工艺优化[J]. 锻压技术, 2017, 42(5): 48-51.
GU S D, ZHANG L W, ZHANG C, et al.Numerical Simulation and Process Optimization on Radial-Axial Rolling Process for L-Shaped Cross-Sectional Ring[J]. Forging & Stamping Technology, 2017, 42(5): 48-51.
[8] ZHU X L, DONG E T, QIAO X M, et al.Evaluation Methods and Coupled Optimization at Macro- and Micro-Scales for Profiled Ring Rolling of Inconel718 Alloy[J]. Materials, 2024, 17(18): 4538.
[9] 王雨, 谢丹, 何珞玉, 等. 大型异形环件径-轴向轧制芯辊运动自适应控制[J]. 塑性工程学报, 2021, 28(12): 81-89.
WANG Y, XIE D, HE L Y, et al.Motion Self-Adaptive Control of Mandrel Roll in Radial-Axial Rolling for Large Profiled Ring[J]. Journal of Plasticity Engineering, 2021, 28(12): 81-89.
[10] KIM K H, SUK H G, HUH M Y.Development of the Profile Ring Rolling Process for Large Slewing Rings of Alloy Steels[J]. Journal of Materials Processing Technology, 2007, 187: 730-733.
[11] GE S C, WU Y X, QIN Z Y, et al.Deformation Behavior of Profiled Ring Rolling and Process Optimization for Uniformity[J]. The International Journal of Advanced Manufacturing Technology, 2025, 137(1): 871-889.
[12] GE S C, WU Y X, ZHANG T, et al.Using Upper Bound Method Analyze the Metal Flow of Y-Shaped Ring Rolling and Forming Progress Optimization[J]. International Journal of Precision Engineering and Manufacturing, 2025, 26(8): 1855-1876.
[13] SHAO G D, LI H W, ZHAN M, et al.Quantification of Dynamically Inhomogeneous Acoustoplastic Effect on Rolling Process of Superalloy Thin-Walled Complex- Section Ring[J]. Chinese Journal of Aeronautics, 2026, 39(7): 103738.
[14] WU R W, SUN Z Y, DENG J D, et al.A Blank Design Optimization Method of Near-Net Ring Rolling for Complex Stepped-Section Profile Ring[J]. The International Journal of Advanced Manufacturing Technology, 2023, 127(5): 2425-2445.
[15] 叶宁, 王龙祥, 王建国, 等. TC4合金斜Ⅰ型截面环件轧制工艺研究[J]. 精密成形工程, 2024, 16(6): 77-83.
YE N, WANG L X, WANG J G, et al.Rolling Process of TC4 Alloy Oblique I-Shaped Section Rings[J]. Journal of Netshape Forming Engineering, 2024, 16(6): 77-83.
[16] 郭良刚, 杨合, 邸伟佳, 等. TC4钛合金薄壁带筋锥形环辗轧充填规律[J]. 航空学报, 2015, 36(8): 2798-2806.
GUO L G, YANG H, DI W J, et al.Filling Rules in Thin-Walled and Ribbed Conical Ring Rolling for TC4titanium Alloy[J]. Acta Aeronautica et Astronautica Sinica, 2015, 36(8): 2798-2806.
[17] 刘浩, 张文学, 王恒强, 等. 大中型铝合金高筒薄壁环件整体轧制成形技术[J]. 航天制造技术, 2017(1): 26-29.
LIU H, ZHANG W X, WANG H Q, et al.Technology of Large and Medium Thin Aluminum Alloy Ring Rolling[J]. Aerospace Manufacturing Technology, 2017(1): 26-29.
[18] 袁浩, 戴恩虎, 王小明, 等. 环模辗环成形新工艺及其数值模拟[J]. 湖北农业科学, 2017, 56(3): 554-557.
YUAN H, DAI E H, WANG X M, et al.Numerical Simulation of New Ring Rolling Process of Ring Die[J]. Hubei Agricultural Sciences, 2017, 56(3): 554-557.
[19] 华林, 王华昌, 赵仲治. 台阶截面环件轧制缺陷和对策[J]. 热加工工艺, 1995, 24(5): 20-22.
HUA L, WANG H C, ZHAO Z Z.Rolling Defects and Countermeasures for Ring with Stepped Cross Section[J]. Hot Working Technology, 1995, 24(5): 20-22.
[20] 郭良刚, 白文平, 戚大涛, 等. 异形环件轴向/径向顺序轧制成形方法与智能仿真建模研究[J]. 精密成形工程, 2025, 17(4): 1-9.
GUO L G, BAI W P, QI D T, et al.Axial/Radial Sequential Rolling Forming Method and Intelligent Simulation Modeling of Profiled Ring[J]. Journal of Netshape Forming Engineering, 2025, 17(4): 1-9.
[21] 马君慧. 2219铝合金Y形截面环件轧制仿真与工艺参数优化研究[D]. 长沙: 中南大学, 2022: 37-41.
MA J H.Simulation Research and Technology Parameter Optimization for Rolling Process of 2219 Aluminum Alloy Y-section Ring[D]. Changsha: Central South University, 2022: 37-41.
[22] LIANG L, ZOU C J, GUO L G.Forming Process Chain for Manufacturing Complex Conical-Section Profiled Rings: On a Co-Design Method[J]. Chinese Journal of Aeronautics, 2024, 37(6): 485-503.
[23] 顾怡萱, 王昆平, 钱东升, 等. L形截面风电偏航轴承锻件近净轧制工艺数值模拟与优化[J]. 轴承, 2024 (11): 56-62.
GU Y X, WANG K P, QIAN D S, et al.Numerical Simulation and Optimization of Near-Net Rolling Process for Wind Turbine Yaw Bearing Forgings with L-Shaped Section[J]. Bearing, 2024(11): 56-62.
[24] 洪意飞. 异形环件轧制成形的材料流动与表面缺陷控制技术研究[D]. 重庆: 重庆大学, 2020: 30-34.
HONG Y F.Research on Material Flow and Surface Defect Control Technology in Rolling Forming of Profile Ring[D]. Chongqing: Chongqing University, 2020: 30-34.
[25] ZHOU G, HUA L, LAN J, et al.FE Analysis of Coupled Thermo-Mechanical Behaviors in Radial-Axial Rolling of Alloy Steel Large Ring[J]. Computational Materials Science, 2010, 50(1): 65-76.
[26] 边卓. 40Cr/Q345双金属复合环件热辗扩成形模拟研究[D]. 太原: 太原科技大学, 2023: 21-28.
BIAN Z.Simulation Study on Hot Rolling Forming of 40Cr/Q345 Bimetal Composite Ring[D]. Taiyuan: Taiyuan University of Science and Technology, 2023: 21-28.
[27] 裴蒙蒙. 离心铸造40Cr/Q345B双金属的热变形及组织演变行为研究[D]. 太原: 太原科技大学, 2021: 25-30.
PEI M M.Study on Thermal Deformation and Microstructure Evolution Behavior of 40Cr/Q345B Bimetallic in Centrifugal Casting[D]. Taiyuan: Taiyuan University of Science and Technology, 2021: 25-30.
[28] 周广. 大型环件径轴向轧制成形工艺理论研究[D]. 武汉: 武汉理工大学, 2011: 29-33.
ZHOU G.Research on the Technological Theory of Radial-axial Large Ring Rolling[D]. Wuhan: Wuhan University of Technology, 2011: 29-33.
[29] 边卓, 熊波, 令狐冰冰, 等. 不同轧辊尺寸下40Cr/ Q345双金属环件成形过程有限元分析[J]. 精密成形工程, 2023, 15(3): 128-137.
BIANZHUO, XIONG B, LINGHU B B, et al.Finite Element Analysis of Forming Process of 40Cr/Q345 Bimetal Ring under Different Roll Sizes[J]. Journal of Netshape Forming Engineering, 2023, 15(3): 128-137.
基金
国家自然科学基金（52265045）; 山西省重点研发计划（202202150401007）
PDF(4586 KB)
渝公网安备 50010702501719号 渝ICP备15012534号-4
