Statistical Estimation of Spring-back Degree Using Texture Database

Using a texture database, a statistical estimation of
spring-back was conducted in this study on the basis of statistical
analysis. Both spring-back in bending deformation and experimental
data related to the crystal orientation show significant dispersion.
Therefore, a probabilistic statistical approach was established for the
proper quantification of these values. Correlation was examined
among the parameters F(x) of spring-back, F(x) of the buildup fraction
to three orientations after 92° bending, and F(x) at an as-received part
on the basis of the three-parameter Weibull distribution. Consequent
spring-back estimation using a texture database yielded excellent
estimates compared with experimental values.

• Takashi Sakai
• Shinsaku Kikuta
• Jun-ichi Koyama

• Bending
• Spring-back
• Database
• Crystallographic Orientation
• Texture
• SEM-EBSD
• Weibull distribution
• Statistical analysis.

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