Abstract

As the globalization of various industries continues, the achievement of more sophisticated functions, improved safety, and lower costs is required, particularly in the automobile industry, which is a representative manufacturing industry that has been the driving force behind the economic growth of Japan. Under such circumstances, there is much hope for the reduction of cost from defective work, achieved by implementing preventive measures for the recurrence of defects as a means for improving earnings. Although every company has been conducting various activities intended to reduce costs, not much progress has been made with the reduction of defects for molds because of various reasons.This paper deals with resin molds and develops the logic for automatically processing the trend analysis of the flaw in mold manufacturing and transferring that to knowhow. A matrix drawing is applied and a sophisticated information matrix about design requirements in mold production and molding try is defined. Then, the difficulties in the improvement of the flaw in the mold manufacturing are categorized. For the categories that are difficult to improve the flaw in the mold, the authors propose the logic for making knowhow by subdividing the category of failures and parts, and analyzing with sophisticated information.