Research Information System
Journal of the Faculty of Engineering and Architecture of Gazi University, vol.39, no.2, pp.1067-1082, 2024 (SCI-Expanded)
In this study, the 5S method was applied in the tool room of a company operating in the aviation field and engaged in machining. Preparations for the 5S study were carried out in June 2020, and after this month, production was started according to the 5S method. Outputs such as defective parts rates due to cutting tools, costs due to tool room, machine waiting due to tool supply and tool preparation time were determined as performance evaluation criteria. Within the scope of preparation, first of all, lean production and 5S trainings were given to company employees. Personnel for the area where 5S will be applied have been determined and necessary planning has been made. Sorting, organizing, cleaning, standardization and discipline steps related to 5S have been successfully implemented, respectively. For the recovery data, the outputs of the first half of 2020 and the last half were compared and evaluated. As a result of this study, 66% improvements were observed in the cost of the tool room, 76% in the downtime rate of the machines due to the tool room, 78% in the scrap rate due to the faulty cutting tool, and 85% in the unnecessary movement load rates in the tool room. As a result of these improvement works, the efficiency of production has increased. With the gray relational analysis, where all outputs are evaluated jointly, it has been revealed that the most productive month in terms of production is November, when production is made by applying the 5S approach. It was observed that the most inefficient month was April, when production was carried out without applying the 5S approach.