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http://dx.doi.org/10.14775/ksmpe.2021.20.12.129

Evaluation of Formability Dependent on the Location of Injection Gate of Vertical Machining Center ATC Tool Port Using Injection Molding Analysis  

Lee, Yu-Wool (Daegu Mechatronics & Material Institute)
Park, Chul-Woo (Daegu Mechatronics & Material Institute)
Kim, Jin-Rok (Daegu Mechatronics & Material Institute)
Choi, Hyun-Jin (Daegu Mechatronics & Material Institute)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.20, no.12, 2021 , pp. 129-135 More about this Journal
Abstract
Injection molding is a manufacturing method of melting the polymer resin and injecting it into a mold to molding it into the desired form. Due to the short molding time and outstanding formability, complex products can be shaped with high precision and it is the most widely used polymer molding method. However, there may be areas that are not filled depending on the location of the injection gate where polymer resin is injected. Formability is determined by deformation and surface precision due to the impact of residual stress after molding. Hence, choosing the location of the injection gate is very important and molding analysis of injection molding is essential to reduce the cost of the mold. This study evaluated the injection formability based on the location of the injection gate of the vertical machining center ATC tool port using injection molding analysis and the results were compared and analyzed. Injection molding analysis was conducted on filling, packing, and deformation according to the location of the gate of the ATC tool port. From each injection gate location, filling time, pressure, and maximum deformation were compared. At gate 2, conditions of molding time and the location of the gate were far superior in production and quality. Gate 2 produced the smallest deformation of 0.779mm with the best quality.
Keywords
Automatic Tool Changer; Injection Molding Analysis; Finite Element Analysis; Vertical Machining Center;
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