Integrating Taguchi Method and Gray Relational Analysis for Auto Locks by Using Multiobjective Design in Computer-Aided Engineering

Polymers

Jyh-Horng Chou¹  Zi-Yun Tasi²  Wen-Hsien Ho²  Wei-Tai Huang² 

[1] Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung 807, Taiwan;Department of Mechanical Engineering, National Pingtung University of Science and Technology, Pingtung 912, Taiwan;

关键词: injection molding;    Taguchi method;    gray relational analysis;    warpage;    temperature distribution;    conformal cooling;   

DOI  :  10.3390/polym14030644

来源: DOAJ

【 摘 要 】

In automobiles, lock parts are matched with inserts, and this is a crucial quality standard for the dimensional accuracy of the molding. This study employed moldflow analysis to explore the influence of various injection molding process parameters on the warpage deformation. Deformation of the plastic part is caused by the nonuniform product temperature distribution in the manufacturing process. Furthermore, improper parameter design leads to substantial warpage and deformation. The Taguchi robust design method and gray correlation analysis were used to optimize the process parameters. Multiobjective quality analysis was performed for achieving a uniform temperature distribution and reducing the warpage deformation to obtain the optimal injection molding process parameters. Subsequently, three water cooling system designs—original cooling, U-shaped cooling, and conformal cooling—were tested to modify the temperature distribution and reduce the warpage. Taguchi gray correlation analysis revealed that the main influencing parameter was the mold temperature followed by the holding pressure. Moreover, the results indicated that the conformal cooling system improved the average temperature distribution.

【 授权许可】

Unknown