Bir Makine Fabrikasında Yarı Mamul Depolama Sistemi için Etkin Raf Yerleşimi Önerisi

Abstract

In this study, an effective layout for semi-finished products of welding department in a machine factory is aimed. Presently, semi-finished products are stored in this department for a long time. The absence of specific places for parts in process, cause waste of time for employees and excessive transfer distances to work centers. Consequently, redundant costs due to non-value added affairs arise. Two integer mathematical programming models are utilized to solve that shelf space allocation problem. The shelf areas and container sizes are taken into consideration in these models to determine the shelf assignments. The dimensions of these semi-finished products planned to be placed are determined by using of technical drawings and by direct measurements. Two different models have been solved with GAMS software to determine the placement of transport vehicles such as containers and pallets on the shelves. The first model aims to minimize the diversity of parts in shelves and the second model aims to minimize the diversity of the parts in the corridors. With the developed approach, two alternative layout plans for semi-finished products of each part is proposed. According to the results obtained by the solution of the models, the shelf occupancy rate became 76.25% in the first model and 78.47% in the second model.