MELHORIA EM FERRAMENTA DE INJEÇÃO PLÁSTICA PARA OTIMIZAÇÃO DA ESTABILIDADE DIMENSIONAL DE PEÇAS VEDANTES AUTOMOTIVAS

Abstract

This study presents an improvement in a plastic injection mold used in the manufacturing of automotive sealing parts. The main objective was to eliminate a recurring dimensional failure that affected the fit and sealing efficiency of window channels by applying structured quality analysis tools such as MASP, 8D, Ishikawa Diagram, and 5 Whys. The research was conducted in an automotive company located in Varginha-MG, involving dimensional analyses, root cause identification, and the implementation of corrective and preventive actions. As a result, a new fixed stainless-steel stop system was developed to replace the worn movable stop, leading to enhanced dimensional stability, cost reduction, and improved process reliability. The study demonstrated the effectiveness of the 8D methodology for definitive problem-solving and contributed to strengthening a culture of continuous improvement and quality in automotive manufacturing.