Numerical Investigation of Flexible Clamp Multi-Point Stretch Forming

Abstract:

The finite element model of flexible clamp multi-point stretch forming (FCMPSF) was set up, and extensive contradistinctive analysis of forming limit and forming accuracy between FCMPSF and RCMPSF were done. The results show that under the same forming conditions, spherical part formed by FCMPSF is not easy to fracturing, dimpling and springback, and is easy to fit the die. The reason for this was analysed. The non-fracturing limited graph, the non-dimpling limited diagram and the average springback value of spherical parts formed by FCMPSF and RCMPSF were obtained. Finally, the forming experiment and error analysis of spherical part formed by FCMPSF were done, the results indicate that 3D parts with large transversal curvature can be shaped by FCMPSF and the forming quality was guaranteed.

• Periodical: Applied Mechanics and Materials (Volumes 602-605)
• Pages: 102-105
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.602-605.102
• Online since: August 2014
• Authors: He Li Peng*, Zhong Quan Li, Qun Lin Cheng, Yong Yuan, Ming Zhe Li
• Keywords: Flexible Clamp, Forming Accuracy, Forming Limit, Multi-Point Forming, Stretch Forming

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