Estudo de melhorias baseadas no sistema Lean Manufacturing e ferramentas do Total Productive Maintenance para o processo de corte de núcleo de transformador

Abstract

The study of losses and the search for their elimination represents an important differential for companies that compete in an increasingly aggressive market, where only those that present better efficiency and results survive and thrive. Therefore, this study aimed to demonstrate improvement suggestions, based on the theories of application of the Lean Manufacturing system and TPM (Total Productive Maintenance) tools, for an important part of the process of manufacturing transformers. We will specifically analyze the part of the process responsible for the manufacturing of the cores of the transformers. The importance of this process is not only due to the quality of the final product that depends on its full operation of this component, which together with the copper coils, will transform the electric energy. The process of cutting transformer cores is also important and strategic because the raw material used, silicon, is one of the items with the highest added value of the cost structure of the transformer, representing up to 45% of the total value of the product. In addition, the process is carried out basically by machines, which facilitates the application of the OEE indicator theories. The expected objective of this study is for the company to reduce its losses in this process, to introduce an overall efficiency indicator (OEE), and to improve its performance, thus being more competitive, increasing its market share and being able to offer Better prices, higher quality and high profitability for its shareholders.