Aplicação da metodologia DMAIC para resolução de reclamação interna de qualidade devido à baixo FPY na operação de testes funcionais de bombas injetoras diesel

Abstract

With the aim of reducing costs and improving the FPY (First pass yield) of the functional test line for diesel injection pumps, this study proposes the application of the DMAIC methodology to solve an internal quality complaint resulting from failure identified in the functional test stage of H-type injection pumps. The target of this proposal is to detail the situation, collecting data, organizing and evaluating the problem clearly and precisely. By implementing the project, the entire team involved was able to gain a better understanding of the problem analyzed, especially in the Measure and Analyze stages, in which data was collected and the problem and its symptom were analyzed. Within the stages of the DMAIC methodology, it was possible to progress to the Analysis stage, and due to technical and internal issues at the partner company, the root cause of the fundamental problem was not found. However, a partial solution was suggested as a way of containing the problem and implemented. This solution consists of improving the visual inspection system for components. After stabilizing the standards implemented, the average failure rate of assembled pumps was reduced from 22.2% to 3.8%.