Journal of Shanghai Jiaotong University ›› 2013, Vol. 47 ›› Issue (05): 786-790.

• Metallography and Metallurgical Technology • Previous Articles     Next Articles

Hydroforming Process Robust Optimization for a Tubular Part with Complex Shape

MA Changhong1,LIU Kesu2,CHEN Xinping3,YU Zhongqi1
  

  1. (1.Shanghai Key Laboratory of Digital Manufacturing for ThinWall Structure, Shanghai Jiaotong University, Shanghai 200240, China; 2.School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; 3.Research Institute, Baoshan Iron and Steel Co., Ltd., Shanghai 201900, China)
  • Received:2012-08-10 Online:2013-05-28 Published:2013-05-28

Abstract:

Nowadays it is a very effective method using numerical simulation technology combined with robust optimization technology to solve the forming quality stability problem in mass production condition. Using these two techniques, the robust optimal technological parameters for multi-process hydroforming of a tubular sub-frame were obtained. According to the sensitivity analysis, the key process factors which influence the thinning rate of the tubular subframe are: velocity of the pressure die, lubrication coefficient in bending process and max pressure in hydroforming. The optimization result of the key process parameters that influence the thinning rate of tubular sub-frame was given by means of robust optimization technology.
Key words:

Key words: tube, hydroforming, multi-process, sensitivity analysis, robust optimization

CLC Number: