Study on Springback Compensation in Multi-Point Forming

Abstract:

Springback compensation of Multi-point forming (MPF) was analyzed in the paper based on the ideal elastic-plasticity and linear hardening material models. The calculation formulas for adjusting radius of MPF die, both single-curvature and double-curvature, were obtained. Cylinder and spherical surfaces were formed by MPF equipment. Experimental results show that the errors between formed surface and target shape are within 5%. Moreover, when using formulas derived from linear hardening model, it is found that the formed surface is more close to target contour, and the presented formula can be used to determine the adjusting radius of MPF die in practice.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 2957-2960
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.2957
• Online since: February 2011
• Authors: Qing Fang Zhang, Zhong Yi Cai, Ming Zhe Li
• Keywords: Error Analysis, Multi-Point Forming, Sheet Metal Part, Springback Compensation

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