Abstract: An optimization model of gate location is established for injection molding. An alternative finite element model transformation for geometry model transformation was formulated to overcome the shortcomings of geometry model transformation. As a result the finite element model was successfully transformed from CAD system to CAE system in "zero distortion". The training-data were acquired through the MOLDFLOW simulation. With the aid of optimization system, the gate locations for multi-cavity molding were determined. A simple case was illustrated.

Key words: computer aided engineering, computer aided design, multi-cavity mould, gate location, optimization design