Spring-Back Prediction for Stampings From the Thin Stainless Sheets

Abstract

The theory and practice in engineering industry is not the same. Durability of cutting tools is defined in standard ISO 3685. In standard ISO 3685 is defined T-vc dependence for different cutting materials and standard included process evaluation of tool durability for cutting materials made of high speed steel, sintered carbide and cutting ceramic. Standard ISO 3685 contains instructions how to create T-vc dependence for cutting tools made of cutting ceramic. In this standard are only instructions how to create T-vc dependence according to Taylor. The article compares T-vc dependencies for various cutting ceramics (Al2O3, Al2O3+ZrO2, Al2O3+TiCN) with T-vc dependence defined in standard ISO 3685, because this standard describes T-vc dependence for all entered cutting materials together.

Effect of Lankford Coefficients on Springback Behavior during Deep Drawing of Stainless Steel Cylinders

“…The traditional trial-and-error and empirical methods for weakening springback and obtaining height-precision parts are time-consuming and expensive. The occurrence of defects, such as wrinkling, cracking, and springback, during sheet formation can be predicted with numerical simulations [ 6 , 7 , 8 , 9 ]. However, the predictions of springback and the final shape of the workpieces have a low accuracy rate because of the strong plastic anisotropy in the thickness direction.…”