Demir Çelik Sektöründe Hibrid DEMATEL ve TOPSİS-ELECTRE Yöntemleri ile Hata Türleri ve Etkileri Analizi

Abstract

Errors that occur in the production process in the manufacturing sector cause customer losses because they will cause quality insufficiency if not detected in time. On the manufacturer side, the resources used for faulty products which do not have the necessary qualities will be wasted and will cause time and money loss. To minimize errors; the detection of faults, the discovery and prioritization of reasons are required. For this purpose, Failure Mode and Effects Analysis (FMEA) technique, which is easy to implement, is one of the most preferred error detection techniques. In this study, errors were classified according to the Risk Priority Number (RPN) values by applying the Classical FMEA method in determining the types of errors and their effects in the examined rolling stock. "Probability", "Intensity" and "Detection" values are used for the calculation of the RPN value. Using these three values as criteria, and using TOPSIS and ELECTRE-III methods, the priority order of errors are found. DEMATEL method has been preferred in determining the criteria weights to be used in the application of TOPSIS and ELECTRE-III techniques. As a result of the applications, the order of the first four errors was the same in all three methods, and the differences were observed in the following rows. Thus, it is possible to compare three different methods for prioritization of failures.