Advertisement

The multi-objective optimization design of a new closed extrusion forging technology for a steering knuckle with long rod and fork

  • Jie Zhou
  • Lei Lin
  • Yan Luo
ORIGINAL ARTICLE

Abstract

A new forming technology of car steering knuckle was presented, aiming at eliminating the defects in the existing steering knuckle forming process. Based on orthogonal experimental design to numerical simulation by using FEM, for steering knuckle closed extrusion of multi-objective optimal design problems in systematic research, the influences of extrusion temperature and speed, mold temperature, and lubrication of forming technology were discussed with comprehensive scoring method and integrated balance method, then the process parameters used in the forming were applied in the productive practice. Results show that the orthogonal test method combined with finite element simulation can be flexible and efficient in handling of multi-objective optimization problems. As for the forming of other types of long rod fork forging, the new process and the design method have important guiding significance.

Keywords

Steering knuckle Closed extrusion-die forging Pre-forging part Orthogonal experimental design 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Song LP (2007) CAE Optimization of the Forging Process of Automobile Steering Knuckle[D]. Mod Manuf Technol Outfit. Shandong university, master's thesis, pp 10–15Google Scholar
  2. 2.
    Wang J (2009) Steering knuckle extrusion of blocking process design and numerical simulation[D]. Hefei University of Technology, Master's Thesis, pp 11–14Google Scholar
  3. 3.
    Li HW, Ma Y, Ma YJ (2008) Forming parameters optimization of knuckle based on Deform[J]. J Zhengzhou Univ Light Ind (Nat Sci) 23(4):54–58Google Scholar
  4. 4.
    Li L, Zhou J, Lu XZ, Wang GH (2009) Comparative analysis about different process of knuckle hot extrusion[J]. Cast Forging Weld 38(23):131–133Google Scholar
  5. 5.
    He J, Kan ZD, Li L (2009) 1041 Steering knuckle hot die forging process and die design. Precis Form Eng 1(2):86–88Google Scholar
  6. 6.
    Zhao DY, Sun HX (2006) Numerical simulation of car steering knuckle obliterated extrusion forming. J Plast Eng[A]. pp 11–14Google Scholar
  7. 7.
    Zhao DY, Zhang LD, Sun HX (2008) Research on closed die forging process of car steering knuckle [J]. Mater Sci Forum 575/578(1):204–209CrossRefGoogle Scholar
  8. 8.
    J.–H. Song, Y-T. Im (2007) Process design for closed-die forging of bevel gear by finite element analyses[J]. J Mater Process Technol 192–193:1–7Google Scholar
  9. 9.
    Hong SZ (1996) Application and development of closed extrusion-die forging technology. Technol Forging, 5:3–6Google Scholar
  10. 10.
    Kowalski M, Marszalek K, Sinczak J (2009) Modelling of non-symmetrical side-extrusion in preparation of steering knuckle preform[J]. Arch Mater Sci Eng 39(2):121–124Google Scholar
  11. 11.
    Wang MH, Xiang D, Xiao C, Zhou J, Jia Z (2012) Influence of cooling condition of tools on central deformation of workpiece and tool wear in cross wedge rolling. Int J Adv Manuf Technol 59:473–482CrossRefGoogle Scholar
  12. 12.
    Zhou J, Xiao C, Yu YY, Jia Z (2013) Influence of tool parameters on tool wear in two-roll cross-wedge rolling. Int J Adv Manuf Technol 65:745–753CrossRefGoogle Scholar
  13. 13.
    Fang KT, Ma CX (2001) Orthogonal and uniform test design[M]. Science, Beijing, pp 35–43Google Scholar
  14. 14.
    He SH, Wen ZQ, LOU T (2002) Experiment design and data processing[M]. National University of Defense Technology, Hunan, pp 62–64Google Scholar
  15. 15.
    Yuan YF (2005) Analysis of multi-target orthogonal experiment[A]. J Hubei Automot Ind Inst, 53–56Google Scholar
  16. 16.
    Li YY, Hu CR (2008) Experiment design and data processing[M]. Chemical Industry, BeijingGoogle Scholar

Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringChongqing UniversityChongqingPeople’s Republic of China

Personalised recommendations