Title: Research on Continuous Multi-Point Forming technology for three-dimensional sheet metal

Authors: Xue-peng Gong, Ming-zhe Li, Zhi-qing Hu, Zhong-yi Cai

Addresses: Dieless Forming Technology Center, Jilin University, Changchun 130025, PR China. ' Dieless Forming Technology Center, Jilin University, Changchun 130025, PR China. ' Dieless Forming Technology Center, Jilin University, Changchun 130025, PR China. ' Dieless Forming Technology Center, Jilin University, Changchun 130025, PR China

Abstract: Continuous Multi-Point Forming (CMPF) is an advanced sheet metal forming technology. It can manufacture three-dimensional surfaces of different shapes by adjusting the curvatures of flexible rollers and displacement of upper flexible roller. CMPF experimental equipment was designed. Finite Element Analysis (FEA) model was established. To show the characteristics of CMPF, conventional roll bending was compared with it. Process of CMPF and action force between flexible rollers and sheet metal were researched by numerical simulation method; simulation results can offer assistance to optimise the design of CMPF equipment. Spherical, saddle and twisty surfaces were simulated and their experimental results were presented.

Keywords: CMPF; continuous multi-point forming; 3D surfaces; flexible rollers; experiment; numerical simulation; sheet metal forming; modelling; finite element analysis; FEA; roll bending.

DOI: 10.1504/IJMPT.2010.032114

International Journal of Materials and Product Technology, 2010 Vol.38 No.2/3, pp.210 - 222

Published online: 10 Mar 2010 *

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