Design of a New Type Flexible Stretch-Forming Machine

Abstract:

Stretch forming machine (SFM) is most effective plastic forming equipment for large-size, thin and flat-deformation parts, which can decrease the springback phenomenon in sheet metal forming. In order to enhance the performance of SFM, a flexible stretch forming machine (FSFM) was developed by the authors successfully, which is made up of jaw clamping mechanisms, stretching mechanisms, universal push-pull mechanisms, and a carriage. Our experimental results indicated that the rate of materials utilization and close-fitting dies can be increased to 80 %. In addition, FSFM can reduce the complex of control-system and decrease the expense of machine sharply. FSFM have been used for double-curved sheet metal manufacturing successfully, such as the cab of high-speed train. This work has a strong value in enhance the stretch forming technology for double-curved sheet metal parts.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 2218-2221
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.2218
• Online since: May 2013
• Authors: Qi Gang Han, Ming Zhe Li, Qiang Zhang, Ya Dong Chen, Wen Zhi Fu
• Keywords: Double Curved, Flexible Stretch Forming Machine, Plastic Forming, Sheet Metal Parts

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