Advanced design software for the injection moulds design based on solid modelling techniques

This paper describes a CAD software that focuses on computer-aided design for injection moulds using modelling techniques. The ultimate goal of this CAD software is to enable the designer to do various mould design works. It consists of two main modules, geometric modelling and mould design. The former consists of a set of functions which can be used to create solid primitives and excute Boolean operations and the latter is able to support the design of standard mould components and some further applications such as the automatic determination of undercut, parting lines and parting surfaces, core and cavity plates, etc. This software is now implemented on a Unigraphics CAD/CAM system and operated in a dialogue mode to communicate with the user