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http://dx.doi.org/10.14775/ksmpe.2021.20.12.036

Determination of Feed System and Process Conditions for Injection Molding of Automotive Connector Part with Two Warpage Design Characteristics  

Yu, Man-Jun (Department of Mechanical Engineering, Graduate School, KIT)
Park, Jong-Cheon (Department of Mechanical Engineering, KIT)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.20, no.12, 2021 , pp. 36-43 More about this Journal
Abstract
In this study, the optimal feed system and process conditions that can simultaneously minimize each warpage occurring in the two shape features of the 2P Header HSG, a connector part for automobiles, were determined through injection molding simulation analysis. First, we defined each warping deformation of the two features geometrically and quantified them approximately using the injection molding simulation data. For design optimization, a full factorial experiment was conducted considering the feed system, resin temperature, and packing pressure as design variables, and a follow-up experiment was conducted based on the analysis of the average warpage. In this study, an optimal design was generated considering both the warpage result and resin-saving effect. In the optimal design, the warpages of the two shape features were predicted to be 0.18 and 0.29 mm, and these warpages were found to meet the allowable limit of warpage, which is 0.3 mm, for part assembly.
Keywords
Injection Molding; Simulation Analysis; Shape Features; Warpage; Feed System; Process Conditions; Optimization;
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