Editor's Note: This article is Part III of a three-part series discussing finite element (FE) simulation for tool and process design in hot-stamping boron steel. Part I, which appeared in the December 2006 issue, discussed the types and applications of the hot-stamping process. Part II, which appeared in January 2007, discussed the microstructure of boron steels and coatings on the sheet surface. This column was prepared by the staff of the Center for Precision Forming (CPF, formerly ERC for Net Shape Manufacturing), The Ohio State University, Taylan Altan, professor and director. Hot stamping comprises a forming process and then cooling the formed part within the die. Finite element (FE) simulation of hot stamping is currently under development. To model the hot-stamping process accurately, FE simulation needs to predict the mechanical, thermal, and microstructural changes in the work-piece (see Figure 1).
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