Numerical Simulation and Experiment Research on Surface Defects for Thick Plate Multi-Point Forming Process

Le Li; Li Yong Wang

doi:10.4028/www.scientific.net/AMM.385-386.59

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 385-386Numerical Simulation and Experiment Research on...

Numerical Simulation and Experiment Research on Surface Defects for Thick Plate Multi-Point Forming Process

Abstract:

Multi-point forming (MPF) is an advanced flexible manufacturing technology for three-dimensional sheet metal forming. The substance of MPF is replacing the conventional solid dies by a set of discrete punches called punch group. Due to the discrete contacts between the workpiece and punches, the dimple defects occurred, which are inevitable and particular for MPF. In this study, the analysis of the deformation features of the dimple defects was implemented. The dynamic explicit finite element method was chosen to implement the simulation of MPF process. The influencing factors of the surface defects were researched. The relevant experiment was implemented, and it verified that the forming defects decreased with the increasing of the thickness of metal plate and the objective surface curvature radius.

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Periodical:

Applied Mechanics and Materials (Volumes 385-386)

Pages:

59-62

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.385-386.59

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Online since:

August 2013

Authors:

Le Li, Li Yong Wang

Keywords:

Multi-Point Forming (MPF), Numerical Simulation, Surface Defect, Thick Plate

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References

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