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Verification and Accuracy

Complete analysis of springback analysis

Complete analysis Springback analysis

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   Springback is getting more and more important for precision metal forming to minimize machining cost, to save global environments and to improve product quality. Springback is caused from thermal load as well as mechanical load. A complete analysis, that is, fully coupled analysis between die-material deformation as well as flow-temperature analysis is conducted. 

   Unloading process and ejection process were all analyzed, and the predictions are shown in Fig. 2.4. The predicted distances just after unloading process, after ejection process and after cooling down were 30.58 mm, 30.48 mm and 30.43 mm, respectively. The experimental distance between two measurement points was 30.53 mm, implying that the predicted springback of 0.92 mm is close to the experiment of 0.82 mm.


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