Abstract: The geometrical description and mesh generation for tooling surface play an important role in the FE simulation of sheet metal forming process. According to the characteristics of stamping tools, a method of division of tooling surface into a group of parameterized NURBS patches and local area mesh adjustment is put forward. Based on the concept of the predefined parameterized NURBS surfaces, an interactive software with C+ + code is developed for stamping tool surface modeling and mesh generation, The die for deep drawing process is modeled and both quadrilateral and triangular meshes are generated. And the output data containing mesh and node information are satisfying for the successive FE simulation.

Key words: Mesh generation, NURBS method, Parameterized design, Surface modeling