In injection mould design, the main

In injection mould design, the main design activities include the determination of parting direction, parting lines and surfaces, selection of mould types, cavity layout, gating, ejection, venting, heating/cooling types, mould materials, and the tempera- ture control system. After the parting direction and lines are determined and the design scheme is decided, the rest of the detailed design activities mentioned above can proceed. Based on the known parting direction and parting lines, the method- ologies related to the generation of parting surfaces and core/cavity blocks are pre- sented.