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이희철(H. C. Lee),류호연(H. Y. Ryu),이희진(H. J. Lee),김경호(K. H. Kim),황재영(J. Y. Hwang),김영식(Y. S. Kim) 한국소성가공학회 2014 한국소성가공학회 학술대회 논문집 Vol.2014 No.10
In general injection molding used a inclined core for the undercut processing. However, the injection mold with the inclined core has a structure complex and large. The injection mold requires an injection molding machine of higher specification. In addition, the injection molding machine should be used dedicated when the molding simultaneously different products. Thus, it can be applied in the limited space through the improvement of the inclined core for the weight reduction of the mold, it is desired to develop the tension core of the long life.