The gas-assisted injection molding(GAIM)process

as an innovative technology

is being increasingly used in the plastics industry. It is derived from the conventional injection molding process. GAIM provides benefits in material saving and improved processing capabilities

but it is a more complex manufacturing process than conventional injection molding of plastic because it involves a greater number of manufacturing stages and process variables. The flow is also made more complex by the combination of low and high viscosity fluids. So CAE（computer-aided engineering）simulation software is expected to become an important and required tool to assist in parts design

mold design

and process evaluation in the coming age.