Abstract
This study focuses on optimizing inbound logistics in the automobile industry by exploring how Flex Sim software can enhance productivity in car coating and assembly processes. By evaluating both separate and integrated production setups, the study demonstrates significant gains in operational efficiency and productivity. In a setup with separate plants, producing 500 automobiles requires 73.38 hours, with an average machine efficiency of 73.24% and a yield ratio of 98.62%. Conversely, integrating coating and assembly processes in a combined plant reduces production time to 35 hours and raises machine efficiency to 85.26%, with a slight reduction in the yield ratio to 93.96%. These results suggest that while there is a minor trade-off in yield, integrating processes leads to major improvements in time and efficiency.