| Abstract Scope |
The compensation of die surfaces to obtain parts that are dimensionally accurate after springback involves numerous challenges. In this article, we first give a description and an overview over the major difficulties like compensation of blank against target surface, smooth modification of the die surfaces, treatment of undercut and application of constraints in the blankholder area. Afterwards we introduce a nonlinear optimization technique on mesh level that modifies the blank and die surfaces in a desired way and apply this mesh modelling technique to the springback compensation setup. Finally, we discuss practical examples as application. |