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李玉森等:铝合金管材6061自由弯曲成形工艺仿真及优化 .777· 的参数.管材的压弯实验,验证了模型的有效性 bending springback considering different parameter variations of (2)使用自由弯曲成形工艺弯曲的管材成形 Ti-alloy tubes.J Mater Process Technol,2016,236:123 质量较高,无应力集中等缺陷.且管材外壁壁厚减 [7]Gantner P.Bauer H.Harrison D K,et al.FEA simulation of bending processes with LS-DYNA//Proceedings of the 8th 薄率不超过5%,管材截面畸变率不超过6%. International LS-Dyna Users Conference.Troy,2004:33 (3)当移动模与固定模距离一定时,管材的成 [8] Gantner P,Bauer H,Harrison D K,et al.Free-bending-a new 形曲率即成形半径的倒数1/R和移动模的偏移量 bending technique in the hydroforming process chain.J Marer 线性相关 Process Technol,2005,167(2-3):302 (4)对影响管材自由弯曲成形质量的各工艺 [9]Plettke R.Vatter P H.Vipave D.Basics of process design for 3D 参数进行优化分析,确定出移动模与管材间隙c= freeform bending.Steel Res Int,2012,14:307 02mm,移动模与管材摩擦系数f=0.1,管材进给 [10]Goto H,Tanaka Y,Ichiryu K.3D tube forming and applications of 速度v=20mms1为各工艺参数的较优值.在后 a new bending machine with hydraulic parallel kinematics.IntJ Autom Technol,2012,6(4):509 续工作中将开展管材自由弯的实验研究,验证以 [11]Kawasumi S,Takeda Y,Matsuura D.Precise pipe-bending by 3- 上工艺参数的有效性 RPSR parallel mechanism considering springback and clearances at dies.TJpn Soc Mech Eng,2014,80(820):343 参考文献 [12]Li P F,Wang L Y,Li M Z.Flexible-bending of profiles with [1]Li H,Shi K P,Yang H,et al.Springback law of thin-walled 6061- asymmetric cross-section and elimination of side bending defect. T4 Al-alloy tube upon bending.Trans Nonferrous Met Soc China, Int J Ady Manuf Technol,2016,87(9-12):2853 2012,22(Suppl2:s357 [13]Li P F,Wang L Y,Li M Z.Flexible-bending of profiles and tubes [2]Zhang X L,Yang H,Li H,et al.Warm bending mechanism of of continuous varying radii.Intl JAdy Manuf Technol,2017,88(5. extrados and intrados of large diameter thin-walled CP-Ti tubes. 8):1669 Trans Nonferrous Met Soc China,2014,24(10):3257 [14]Yang H,Li H,Zhang Z Y,et al.Advances and trends on tube [3]Zhang JR.Wang YJ,Wang J B,et al.Analysis on springback of bending forming technologies.ChinJeron,012,25(1):1 big diameter thin-wall tube bending forming.Meron Manuf [15]WuJJ,Zhang ZK.Shang Q.et al.A method for investigating the Technol,.2009(19):91 springback behavior of 3D tubes.Int J Mech Sci,2017,131-132: (张尽染,王永军,王俊彪,等.大直径薄壁导管弯曲回弹解析计 191 算.航空制造技术,2009(19):91) [16]Guo X Z,Ma Y N,Chen WL,et al.Simulation and experimental [4]Guo X Z.Ma Y N.Xu Y,et al.State-of-the-Arts in 3D free research of the free bending process of a spatial tube.J Mater bending technology and the future application in aviation Process Technol,2018,255:137 manufacture.Aeron Manuf Technol,2016(23-24):16 [17]Yue Z M.Ductile Damage Prediction in Sheet Metal Forming (郭训忠,马燕楠,徐勇,等.三维自由弯曲成形技术及在航空制 Processes[Dissertation].Troyes:University of Technology of 造业中的潜在应用.航空制造技术,2016(23-24):16) Troyes,2014 [5]Lu S Q.Fang J,Wang K L.Plastic deformation analysis and [18]Yue Z M,Badreddine H,Saanouni K,et al.On the distortion of forming quality prediction of tube NC bending.Chin Aeron, yield surface under complex loading paths in sheet metal 2016,29(5):1436 forming/lProceedings of the IDDRG 2014:Innovations for the [6]Zhan M,Wang Y,Yang H,et al.An analytic model for tube Sheet Metal Industry.Paris,2014:246的参数. 管材的压弯实验,验证了模型的有效性. (2)使用自由弯曲成形工艺弯曲的管材成形 质量较高,无应力集中等缺陷. 且管材外壁壁厚减 薄率不超过 5%,管材截面畸变率不超过 6%. 1/R u (3)当移动模与固定模距离一定时,管材的成 形曲率即成形半径的倒数 和移动模的偏移量 线性相关. (4)对影响管材自由弯曲成形质量的各工艺 参数进行优化分析,确定出移动模与管材间隙 c = 0.2 mm,移动模与管材摩擦系数 f = 0.1,管材进给 速度 v = 20 mm·s−1 为各工艺参数的较优值. 在后 续工作中将开展管材自由弯的实验研究,验证以 上工艺参数的有效性. 参    考    文    献 Li H, Shi K P, Yang H, et al. Springback law of thin-walled 6061- T4 Al-alloy tube upon bending. Trans Nonferrous Met Soc China, 2012, 22(Suppl 2): s357 [1] Zhang  X  L,  Yang  H,  Li  H,  et  al.  Warm  bending  mechanism  of extrados  and  intrados  of  large  diameter  thin-walled  CP-Ti  tubes. Trans Nonferrous Met Soc China, 2014, 24(10): 3257 [2] Zhang J R, Wang Y J, Wang J B, et al. Analysis on springback of big  diameter  thin-wall  tube  bending  forming. Aeron Manuf Technol, 2009(19): 91 (张尽染, 王永军, 王俊彪, 等. 大直径薄壁导管弯曲回弹解析计 算. 航空制造技术, 2009(19):91) [3] Guo  X  Z,  Ma  Y  N,  Xu  Y,  et  al.  State-of-the-Arts  in  3D  free bending  technology  and  the  future  application  in  aviation manufacture. Aeron Manuf Technol, 2016(23-24): 16 (郭训忠, 马燕楠, 徐勇, 等. 三维自由弯曲成形技术及在航空制 造业中的潜在应用. 航空制造技术, 2016(23-24):16) [4] Lu  S  Q,  Fang  J,  Wang  K  L.  Plastic  deformation  analysis  and forming  quality  prediction  of  tube  NC  bending. Chin J Aeron, 2016, 29(5): 1436 [5] [6] Zhan  M,  Wang  Y,  Yang  H,  et  al.  An  analytic  model  for  tube bending  springback  considering  different  parameter  variations  of Ti-alloy tubes. J Mater Process Technol, 2016, 236: 123 Gantner  P,  Bauer  H,  Harrison  D  K,  et  al.  FEA  simulation  of bending  processes  with  LS-DYNA//Proceedings of the 8th International LS-Dyna Users Conference. Troy, 2004: 33 [7] Gantner  P,  Bauer  H,  Harrison  D  K,  et  al.  Free-bending—a  new bending  technique  in  the  hydroforming  process  chain. J Mater Process Technol, 2005, 167(2-3): 302 [8] Plettke R, Vatter P H, Vipavc D. Basics of process design for 3D freeform bending. Steel Res Int, 2012, 14: 307 [9] Goto H, Tanaka Y, Ichiryu K. 3D tube forming and applications of a  new  bending  machine  with  hydraulic  parallel  kinematics. Int J Autom Technol, 2012, 6(4): 509 [10] Kawasumi S, Takeda Y, Matsuura D. Precise pipe-bending by 3- RPSR  parallel  mechanism  considering  springback  and  clearances at dies. T Jpn Soc Mech Eng, 2014, 80(820): 343 [11] Li  P  F,  Wang  L  Y,  Li  M  Z.  Flexible-bending  of  profiles  with asymmetric  cross-section  and  elimination  of  side  bending  defect. Int J Adv Manuf Technol, 2016, 87(9-12): 2853 [12] Li P F, Wang L Y, Li M Z. Flexible-bending of profiles and tubes of continuous varying radii. Intl J Adv Manuf Technol, 2017, 88(5- 8): 1669 [13] Yang  H,  Li  H,  Zhang  Z  Y,  et  al.  Advances  and  trends  on  tube bending forming technologies. Chin J Aeron, 2012, 25(1): 1 [14] Wu J J, Zhang Z K, Shang Q, et al. A method for investigating the springback behavior of 3D tubes. Int J Mech Sci, 2017, 131-132: 191 [15] Guo X Z, Ma Y N, Chen W L, et al. Simulation and experimental research  of  the  free  bending  process  of  a  spatial  tube. J Mater Process Technol, 2018, 255: 137 [16] Yue  Z  M. Ductile Damage Prediction in Sheet Metal Forming Processes[Dissertation].  Troyes:  University  of  Technology  of Troyes, 2014 [17] Yue Z M, Badreddine H, Saanouni K, et al. On the distortion of yield  surface  under  complex  loading  paths  in  sheet  metal forming//Proceedings of the IDDRG 2014: Innovations for the Sheet Metal Industry. Paris, 2014: 246 [18] 李玉森等: 铝合金管材 6061 自由弯曲成形工艺仿真及优化 · 777 ·
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