Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (9): 93-97.

• Mechanical Engineering • Previous Articles     Next Articles

Compensation Control of Springback Torsion for 3D Irregular Stamping Parts

Liu Qiang1  Ruan Feng2  Xue Xin2  Zhou Chi2   

  1. 1. College of Engineering, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China; 2. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2008-10-07 Revised:2008-11-21 Online:2009-09-25 Published:2009-09-25
  • Contact: 刘强（1981-），男，博士，讲师，主要从事材料成形和计算机辅助技术研究． E-mail:1iu5168198110@126．com
  • About author:刘强（1981-），男，博士，讲师，主要从事材料成形和计算机辅助技术研究．
  • Supported by:

    国家自然科学资金资助项目（50805050）;粤港关键领域重点突破项目（2007A010301010）

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Abstract:

A compensation control method of springback torsion based on the deformation transfer function（DTF） is proposed for a special kind of 3D irregular stamping parts.In this method,the relationships among part sections are evaluated according to the relative torsion angle variation of inertial principle-axis vector,and the transfer function between the simulated and the experimental relative torsion angle deviations is deduced based on the DTF method,which is then used to design the die face.The application of the proposed compensation control method to the formation of a spiral blade sheet indicates that the method keeps the integral space torsion error of the blade sheet under 5%, guarantees the quality of contact surface of adjacent blade sheets in the integral welding process, and overcomes the difficulty in the installation due to the insufficient torsion between two sections.

Key words: irregular stamping part, torsion control, springback, deformation transfer function