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This paper presents several guidelines useful when applying axisymmetric solution techniques to the problem of estimating the forming severity of complex three dimensional stampings. Although the axisymmetric solutions are seemingly restricted in their number of applications, these two dimensional techniques can be used to analyze a wide variety of stamping configurations. However, great care must be taken to ensure that the underlying requirements of Axisymmetry are not “seriously” violated. Presented in this paper are several guidelines, including a discussion of the rationale behind them, suggesting how to apply AS solutions to stretch and shrink flanging stamping operations.

The paper describes a system currently under development, intended to be the spine for organizing an open-ended knowledge-based system for stampings within the sheet metal industry. The system is designed for those not necessarily expert in plasticity and strain theory, as well as applications where lead time is of prime importance. The objectives of the system are to develop: i a common vocabulary for BASIC SHAPES and DEFORMATION MODES ii an open-ended filing system for the organization of the knowledge i.e. the documentation of solutions and procedures used, as well as assessing historical data iii a procedure for deriving the FIRST FORM SHAPE and the number of forming stages and iv a system for the assessment of forming severity, force and energy calculations, material selection, tribological requirements and process planning.