APLICAÇÃO DA METODOLOGIA PFMEA PARA MELHORIA NO PROCESSO DE USINAGEM EM INDÚSTRIA AUTOMOBILÍSTICA

Abstract

This work shows the development of continuous improvement applied in the automotive industry Pro.te.co Minas S / A (Proema Automotiva) in the machining process, using the Potential Failure Mode and Effects Analysis (FMEA) methodology. The study was carried out in a machining cell at that company to verify where the highest level of refuse due to process failure was occurring. After analysis, several problems were found. The FMEA tool not only showed where the highest scrap rate was occurring, but also pointed out which scrap could cause the most problems to the customer, using the severity method, which can be secondary, important or safety. The severity method is adopted by the semifinal customer, who can be an automaker or a supplier, using a table that indicates how their score should be made. The Risk Priority Number (NPR) is the product of the Severity Index (S) , Occurrence (O) and Detection (D) (NPR (S) x (0) x (O)), which indicates where actions should be prioritized to avoid problems. Through this method it is possible to improve the process, reducing scrap, investment cost in the process and improving the use of the time available for production.