Abstract:

The purpose of the study is to optimize machine-process parameters which minimize quality errors and quality-sourced product cost in a rubber factory. For this purpose, product’s quality characteristics (burst, torn, burn and burr) are determined as response variable. Injection machine parameters (mold temperature, cooking time and injection speed) that affect the determined quality properties, were selected as input variables. The study was carried out in a plant that is the supplier of a factory producing washing machines in the Tekirdağ (Çerkezköy) region. In this study, 23 full factorial experimental design which is called the response surface design was applied, experiments were carried out for the production of washing machine sealing gaskets. Statistical analysis was applied with the help of Minitab package program, regression model was developed for each response variable and multiple response optimization was performed in order to determine the machine-process parameter that optimizes the response variables. Reliability analysis was performed for the developed models and the applicability of the results was evaluated.

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