Identical parallel machines scheduling with sequence dependent setup-time in the aviation industry

In this study, the machine scheduling process of a company working in the aviation industry was examined. There are identical parallel machines that process profile raw materials specific to the aviation industry. The sequential processing of parts in the form of different profile raw materials reveals the preparation processes as the tools and sequences to be used in production need to be changed. Setup time depends on job and sequencing. The mixed integer mathematical model, which considers sequencing setups has been developed to minimize the overall tardiness. Since scheduling problems are known to be difficult, the optimal solution has been found for the small size data set. In addition, sensitivity analysis was performed for 3 different scenarios.