Abstract
A computer-aided process planning system for rotationally symmetric deep drawing products has been developed. The application for non-axisymmetric components however has not been reported yet. Thus, this study investigates process sequence design and constructs a computer-aided process planning system for non-axisymmetric deep drawing products with elliptical shape. The system developed consists of three modules. The first one is three-dimensional modeling module to calculate surface area for non-axisymmetric products. The second one is a blank design module that creates an oval-shaped blank with the identical surface area. The third one is a process planning module based on production rules that play the best important roles in an expert system for manufacturing. The production rules are generated and upgraded by interviewing field engineers. Especially, drawing coefficient, punch and die radii for elliptical shape products are considered as main design parameters.
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