A STUDY OF TWO PROCESSING INDUCED PART FAILURES

摘要

Of the four pillars required for the successful development of a plastic part; material selection, part design, processing, and service environment, processing is often assumed to be the most controllable. Even when the service environment has been properly defined, the best design principles implemented, and the appropriate material selected, seemingly insignificant changes in processing can grossly and adversely affect an otherwise well developed product. This paper will explore two case studies where the failure of the parts can be traced directly back to changes in the injection molding processing parameters and how these changes ultimately predisposed them to premature failure.