The PVT effect on final sintered MIM components

Accurately predicting the linear shrinkage of metal injection molded (MIM) components for tool scale-up is commonly done by a combination of estimating shrinkage based on solids loading and prototyping. Extending published techniques from the plastic industry, pressure-volume-temperature (PVT) data and processing parameters are utilized to determine the post molding shrinkage and its effect on final sintered component dimensions. A relationship between injection molding process parameters and sintered component dimensions is presented.