Anisotropic Behaviors and Its Application on Sheet Metal Stamping Processes

Basic behaviors of anisotropic properties of materials, relating to sheet metal forming processes, are discussed. The R-value is used to describe some forming problems including wrinkles and thinning failures. According to the analysis results, to point out that the anisotropic behaviors of materials affect the formability of blanks in some cases is very serious. Finally, a numerical example is presented to discuss this property further.