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Springback Compensation for Ultra High Strength Stamping
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 03, 2003 by SAE International in United States
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The CAE analysis revealed that a stamping component required extremely high yield strength steel in order to pass the safety requirements. However, springback with this component could cause assembly distortions.
The formability prediction was compared with the actual nominal die stamping for splits and wrinkles. The predicted free state springback was compared to the measurements.
A compensated die was engineered based on the springback dimensions of the free state stamping. Morphing the negative residual surface created the dimensional compensation. Then a new compensated die face was created. A CAE prediction was used to confirm and adjust the compensated die using iterations of predictions and corrections.
CitationGeng, L., Sa, C., Oetjens, T., and Zhao, K., "Springback Compensation for Ultra High Strength Stamping," SAE Technical Paper 2003-01-0686, 2003, https://doi.org/10.4271/2003-01-0686.
- LS-DYNA Keyword User's Manual Livermore Software Technology Corp. 2001
- Hill, R. 1950 The Mathematical Theory Of Plasticity Oxford University Press
- Barlat F. Lian J. 1989 Plastic Behavior And Stretch \Ability Of Sheet Metals, Part I: A Yield Function For Orthotropic Sheets Under Plane Stress Conditions Int. J. Plasticity 5 51 66
- Sarraga, R. 2002 Modifying Cad/Cam Surfaces According To Displacements Prescribed At A Finite Set Of Points
- Oetjens, T. J. 2002 A Springback Correction Method For Sheet Metal Stampings GM Research Report