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Title: Numerical simulation analysis of flexible blank holder technology applied to a multi-point forming process
Authors: Li, Liancheng
Wang, WeiWei
Li, Mingzhe
Keywords: Flexible blank holder technology;Multi-point forming process;Finite element model;Stress;Strain
Issue Date: Feb-2019
Publisher: NISCAIR-CSIR, India
Abstract: In this paper, the principles of flexible blank holder technology applied to the multi-point forming process is introduced and a finite element model of the multi-point forming device with blank holder is established. Adopting the flexible blank holder multi-point forming process, a numerical simulation research is conducted on the forming process of spherical parts. Through the numerical simulation results, when a different blank holder area is adopted, the forming defects of wrinkling, tension cracks, and spring-back, the stress-strain distribution and the influence of the sheet metal are analyzed and compared, and the effects of the material parameters on the results of flexible blank holder multi-point forming are investigated. The results show that, under the same situation, the formed parts obtained by using a smaller blank holder area have uniform stress-strain and thickness distributions.
Page(s): 67-72
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.26(1) [February 2019]

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