Research on Different Loading Methods of the Multi-Roller-Pressing Flexible Stretch Forming

Abstract:

Based on the multi-roller-pressing flexible stretch forming (MRPFSF) process, force loading and displacement loading were researched. The process of spherical parts of 08AL sheet material were simulated by means of an explicit finite element method. The variations of the forming force in stretch-forming process and the distribution of stress after springback were analyzed comparatively for both loading methods. The results show that the change of the forming force in the force loading method has fluctuation. With the depressing of rollers, the vibration amplitude is smaller. At the end of forming, the forming forces of both loading methods are gradually consistent. The stress distribution of spherical parts formed by the two loading method is accordant.

• Periodical: Advanced Materials Research (Volume 898)
• Pages: 257-260
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.898.257
• Online since: February 2014
• Authors: Wei Chuan Zhang*, Yong Feng Li, Ming Zhe Li
• Keywords: Displacement Loading, Force Loading, Forming Force, Numerical Simulation, Stretch-Forming

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