Study of the Influence of part features on springback and its robustness

Abstract The influence of part geometry on twist springback was studied by a A-pillar inner plate. structural parameters divided into cross-section and longitudinal axis, the response surface model established to analyze influences various springback. results show that straight line 1, 3, angle 2 4 cross section have significant effect In addition, increases continuously with increasing total length ratio arc decreasing radius in axis. After adding features through angular edges along direction, maximum at end drops from -10.92mm -2.934mm. robustness analysis this were also analyzed, is strongly related material yield strength, improved greatly after features.