吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (增刊1): 212-215.

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Flexible stretch-stamp forming system used for double curved sheet metal

HAN Qi-gang1,2, LI Ming-zhe1,2, FU Wen-zhi1,2, FENG Peng-xiao1,2   

  1. 1. Roll Forming Research Institute, Jilin University, Changchun 130022, China;
    2. Dieless Forming Technology Center, Jilin University, Changchun 130022, China
  • Received:2011-08-05 Online:2012-09-01 Published:2012-09-01

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Abstract: Combining the technologies of flexible multi-jaws stretch forming and stamping at the first time, a flexible stretch-stamp forming system(SSFS) was developed to enhance the quality of the double curved sheet metal forming. SSFS is composed of a digital multi-point model, a flexible multi-jaws stretch forming machine, a hydraulic press machine, and a computer control system. It was found that the double curved sheet metal could be stretch-stamp formed easily by SSFS. The forming precision was enhanced by suppressing the wrinkling and springback. SSFS has been used in double curved cover panels of the landmark building successfully with low cost and high quality, overcoming the difficulty of forming of the double curved cover panel in the landmark building.

Key words: material synthesis and processing technology, double curved sheet metal, sheet metal, stretch-stamp, flexible forming

CLC Number: 

  • TG305
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