The design of a die used for punching small holes on thick sheets and its finite element simulation were investigated in this paper. Elaborated the modern die & mould development situation concisely. First, by using finite analysis Microsoft to simulate the deformation processing for avoiding serious problems that may occur, then focusing on the calculation of the relevant parts in mould design, such as designing the die、bump, and formwork and choosing for punching machine , and analysis of material performance. Finally, according to the requirement of the structure and amounts of the product, we design the set of mold, and then carry out some related simulation analysis. We use CAD and Pro/Engineering software parameterization design in the process of whole designing, making the whole mold design process simple and clear to mend. Also, we use DEFORM software to provide reference basis of mould design and forming technology for the finite element analysis.
First, using CAD software design molding parts and non-standard parts in the design process, then, designing the 3D entity in Pro/Engineering software, finally, put the 3D entity into DEFORM to analyze the stress、strain and strain rate of selecting points. Thus, complete the overall design and finite element simulation and analysis, there must be have certain significance to direct production.
Key words thick sheet; blunt holes; parametric design; finite element simulation