Effects of process parameters on wrinkling of thin-walled circular tube under rotary draw bending

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• 作者：Jisheng Chen ; Daxin E ; Jingwen Zhang
• 关键词：Tube bending ; Process parameter ; Wrinkling ; Wall thickening ; Wall thinning
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2013
• 出版时间：September 2013
• 年：2013
• 卷：68
• 期：5-8
• 页码：1505-1516
• 全文大小：1232KB
• 参考文献：1. L?z?rescu L (2012) Effect of internal fluid pressure on quality of aluminum alloy tube in rotary draw bending. Int J Adv Manuf Technol. doi:10.1007/s00170-012-3992-8
  2. Guan YJ, Yuan GP, Sun S, Zhao GQ (2012) Process simulation and optimization of laser tube bending. Int J Adv Manuf Technol. doi:10.1007/s00170-012-4172-6
  3. Huang YM, Huang YM (2002) Influence of punch radius and angle on the outward curling process of tubes. Int J Adv Manuf Technol 19:587-96 CrossRef
  4. Daxin E, Liu YF (2010) Springback and time-dependent springback of 1Cr18Ni9Ti stainless steel tubes under bending. Mater Des 31:1256-261 CrossRef
  5. Daxin E, Chen MF (2010) Numerical solution of thin-walled tube bending springback with exponential hardening law. Steel Res Int 81:1- CrossRef
  6. Strano M (2005) Automatic tooling design for rotary draw bending of tubes. Int J Adv Manuf Technol 26:733-40 CrossRef
  7. Zhao GY, Liu YL, Yang H (2010) Effect of clearance on wrinkling of thin-walled rectangular tube in rotary draw bending process. Int J Adv Manuf Technol 50:85-2 CrossRef
  8. Corona E, Lee LH, Kyriakides S (2006) Yield anisotropy effects on buckling of circular tubes under bending. Int J Solids Struct 43:7099-118 CrossRef
  9. Wang X, Cao J (2001) Wrinkling limit in tube bending. J Eng Mater Technol 123:430-35 CrossRef
  10. Yang H, Lin Y (2004) Wrinkling analysis for forming limit of tube bending processes. J Mater Process Technol 152:363-69 CrossRef
  11. Limam A, Lee LH, Corona E, Kyriakides S (2010) Inelastic wrinkling and collapse of tubes under combined bending and internal pressure. Int J Mech Sci 52:637-47 CrossRef
  12. Li H, Yang H (2011) A study on multi-defect constrained bendability of thin-walled tube NC bending under different clearance. Chinese J Aeronaut 24:102-12 CrossRef
  13. Tang D, Li DY, Yin ZW, Peng YH (2009) Roles of surface booster system on bending of thin-walled copper tube. J Mater Eng Perform 18:369-77 CrossRef
  14. Li C, Yang H, Zhan M, Xu XD, Li GJ (2009) Effects of process parameters on numerical control bending process for large diameter thin-walled aluminum alloy tubes. T Nonferr Metal Soc 19:668-73 CrossRef
  15. Yang H, Li H, Zhan M (2010) Friction role in bending behaviors of thin-walled tube in rotary-draw-bending under small bending radii. J Mater Process Technol 210:2273-284 CrossRef
  16. Li H, Yang H, Zhan M, Gu RJ (2007) The interactive effects of wrinkling and other defects in thin-walled tube NC bending process. J Mater Process Technol 187:502-07 CrossRef
  17. Gu RJ, Yang H, Zhan M, Li H, Li HW (2008) Research on the springback of thin-walled tube NC bending based on the numerical simulation of the whole process. Comp Mater Sci 42:537-49 CrossRef
  
• 作者单位：Jisheng Chen (1)
  Daxin E (1)
  Jingwen Zhang (2)
  
  1. School of Materials Science and Engineering, Beijing Institute of Technology, N0.5, South Street of Zhongguancun, Haidian District, Beijing, 100081, People’s Republic of China
  2. Automotive Lightweight Engineering Research Center, China Automotive Engineering Research Institute Co. Ltd, Chongqing, 400039, People’s Republic of China
  
• ISSN：1433-3015

文摘

Process parameters, such as clearance, friction, boosting displacement, bending velocity, and centerline radius/tube diameter ratio, have a significant and complicated influence on wrinkling of circular tubes during rotary draw bending process. To explore the effects of these parameters on the wrinkling, a 3D elastic–plastic finite element (FE) model based on eta/DYNAFORM has been built and validated by experiments. Then, relevant simulation and analysis of the process have been performed. The results show that: (1) the wrinkling increases with the accretion of the clearance. A reasonable clearance of mold groove (less than 0.2?mm) can alleviate the severity of the wrinkling; (2) when the boosting velocity of the pressure die is larger than or equal to the linear velocity of the bend die in the X-axis direction, the wrinkling relieves as the friction between the pressure die and the tube decreases; conversely, when the boosting velocity is smaller than the linear velocity, the wrinkling reduces with the increase of the friction between the two contacted components; (3) the wrinkling is negatively correlated with the centerline radius/tube diameter ratio and positively correlated with the bending velocity of the bend die; and (4) the boosting displacement of the pressure die dominates the direction of frictional force exerted by the pressure die in the bending process. The wrinkling tendency becomes more obvious as the displacement increases.