AVALIAÇÃO DA RESITÊNCIA MECÂNICA DO PARAFUSO TARANTO B280600 UTILIZADOS EM MÁQUINAS TÉRMICAS DO CICLO OTTO ATRAVÉS DO ENSAIO DE TRAÇÃO

Abstract

This work aims to expose the results of traction test on three screws applied to cylinder heads of Otto cycle engines exposed to different torque situations. The curiosity about the issue started with the manufacturers' replacement instruction for each maintenance of such screws, which justified the need for changes in resistance values ​​from one situation to the next after the torque. The screw used is from the Taranto brand, well evaluated and requested by professionals in the automotive maintenance area and the model under study is the B280600 installed in 1.8-liter engines from General Motors, whose block is universal (used by other brands). The traction test was chosen because it shows the differences sought in a simple and objective way. The test was carried out at the Unis laboratory under the guidance of the person in charge of it, Fabiano Farias de Oliveira.