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A Study on Formation of Ejector-Pin Hollowness in Injection Molding  

Hwang, Geum-Jong (Chonbuk National University)
Lee, Hui-Gwan (Automotive High Tech Engineering Research Center, Chonbuk National University)
Yang, Gyun-Ui (Chonbuk National University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.6, 2002 , pp. 29-34 More about this Journal
Abstract
This paper presents formation of ejector-pin hollowness in injection molding. Injection molding process is widely used in production of plastic part for good dimensional accuracy and high productivity. However, the injection molding leaves ejector-pin hollowness on pal, which causes bad part surface and quality. Dimensions and profiles of ejector-pin hollowness are measured for formation or ejector-pin hollowness. The formation of ejector-pin hollowness is traced with dimensions and profiles of ejector-pin hollowness. The compression force and moment cause ejector-pin to form hollowness on part surface.
Keywords
Injection molding; Ejector-pin hollowness; Plastic parts; Inner ejecting method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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