METODOLOGIA SEIS SIGMA PARA REDUÇÃO DE CUSTO E MELHORIA NA PRODUTIVIDADE DO PROCESSO DE DEPOSIÇÃO DE CROMO EM VÁLVULAS DE ADMISSÃO E ESCAPAMENTO DE MOTORES A COMBUSTÃO INTERNA

Abstract

The use of Six Sigma methodology for quality improvement both in services and in many production processes is current and widely used by modern organizations in the search for greater efficiency and effectiveness of its results. It is a very disciplined approach to the pursuit of customer satisfaction and that requires reliable and focused on the nuisance of the proposed work and in sufficient quantity data to serve as a reference to verify that changes that were made, they have been converted into improvements. The evaluations must be accurate and substantiated, with decisions to change variables, parameters and systems that directly affect the process. The Six Sigma methodology is proposed for the success of this study based on improvements in the deposition of chromium process for intake and exhaust valves of internal combustion engines. The project requires the application of statistics to eliminate nuisance that are defects and waste are generated in this process, trying to make easier the interpretation of cause and effect relations that affect this operation mainly focusing on reducing the variability, increased the capacity, and consequently profit.