Abstract
In rubber extrusion processes, it is difficult to estimate the finish shape of products before actual molding dies are tested. Therefore, the development of molding dies needs a lot of die design, fabrication, and test processes of trial and error. In this study, an effective method for reducing the process is proposed. First, some design parameters for an important part of die shape are defined. Then, nine kinds of dies, which have varied values of the parameters, are designed with the experimental design method, and their prototypes are tested. Finally, the optimal die is derived from the test results by using the recsat evaluation method. The present approach was applied to an actual development process and discussed.
