Paper Title:

On the Warpage in the Lower Case of Lead-Acid Batteries

Periodical Advanced Materials Research (Volumes 97 - 101)
Main Theme Manufacturing Science and Engineering I
Edited by Zhengyi Jiang and Chunliang Zhang
Pages 51-54
DOI 10.4028/www.scientific.net/AMR.97-101.51
Citation Wen Hsiang Hsieh et al., 2010, Advanced Materials Research, 97-101, 51
Online since March, 2010
Authors Wen Hsiang Hsieh, Kuen Ming Shu
Keywords Battery Case, Mold Flow Analysis, Taguchi Method, Warpage
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Abstract

The study aimed at improving the problems of warpage occurring in the mold injection of battery lower cases. Firstly, the effects of variations of molding parameters are investigated in order to minimize the warpage. Secondly, Moldflow software is employed to simulate the molten plastic flow inside the cavity, and followed by the holding pressure analysis. Moreover, Taguchi method is applied to find the optimum distribution of mold temperature, and its results are used to design cooling tubes. Finally, different cooling systems are parametrically simulated and the optimum combinations will be found. The analytical results indicate that the optimum parameters can reduce the warpage problem occurring during mold injection. Therefore, the yield rate of the products can be effectively raised.