Numerical Simulation of Springback during an Operation of V-Bending, Application to Titanium and Aluminum Sheets

Ahmed Maati; Virginie Pouzols; Laurent Tabourot; Pascale Balland; Elhadj H. Ouakdi

doi:10.4028/www.scientific.net/AMR.698.69

Paper Titles

Analysis of Instability Plastic Shaping by Hydroforming Thin Sheets at Different Temperatures
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Kinematic Behaviour Modeling of the Axes of a Machining Center in High Speed Milling
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Influence of the Addition of Mg, Maturation and Casting Techniques on the Evolution of Elastic, Plastic and Structural Properties of 44100 Polycrystalline Alloy
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Comparative Study of Tools in Drilling Composites T700-M21 and T800-M21
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Numerical Simulation of Springback during an Operation of V-Bending, Application to Titanium and Aluminum Sheets
p.69

Correlation between Torsor Measurements on the Chip Orientation
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Chatter Control in Turning Process with a Nonlinear Energy Sink
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A Multiscale Cutting Model Based on the Theory of Gradient Plasticity
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Characterization of the Surface Quality of Holes Drilled in CFRP Laminates
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Numerical Simulation of Springback during an Operation of V-Bending, Application to Titanium and Aluminum Sheets

Abstract:

Generally, the sheet metal forming processes by plastic deformation are difficult to control owing to the multiple phenomena that can occur and disrupt the operation: the springback, the localization, the wrinkling, etc. The springback is a physico-mechanical phenomenon due to the return of the elastic energy stored during the loading phase, which leads to a change in the dimensions of the formed part. In fact, the improvement of the operation presents some complications because an important number of parameters that affect the springback and that can be accurately understood by the use of finite element analysis. In particular, the springback appears so prominent in the bending operations; this mode of deformation is the focus of this work which consists of two main parts: - Mechanical characterization of two alloys frequently used in aerospace manufacturing: aluminum 1050A and titanium T40 commercially available in the form of cold-rolled thin sheets. The conventional and rational curves are obtained by using a tensile test machine (Instron 50kN). - Finite element simulation of a V-bending operation of sheet metal with both materials. This study allows us to calibrate the numerical procedures that could be included in more complex operations.