Analysis quality control of garnish back door license in injection molding process using DMAIC method and VSM method at PT. Suzuki Indomobil Motor

Abstract

PT. Suzuki Indomobil Motor is a leading automotive company in Indonesia that produces products in the form of cars and motorcycles, a quality phenomenon that occurred during January 2019 at PT. Suzuki Indomobil Motor there is a high silver streak defect in the injection molding section with 169 back door license garnish that are attached to the machine A02. With this phenomenon, this study aims to determine the injection molding process using value stream mapping and improve the quality of the garnish back door license products using the DMAIC. The results obtained showed that there was a changeover time dies on the Machine A02 that was as high as 57.15 minutes with uptime values and the highest type of defect was obtained using the pareto diagram namely silver streak defect with a percentage of 43%. So from the recommendations obtained by using the value stream mapping to minimize the changeover time dies of the Machine A02, namely by heating the dies first before dies go up to the injection machine, and recommendations obtained from the DMAIC method that is by controlling the stock of material and temperature in the hopper dryer.