Análise de desempenho do óleo de tungue para o desenvolvimento de um fluido de corte

Abstract

The great demand for products that cause lower environmental impacts, has caused many companies to reevaluate their processes. With this, a great number of researches are being carried out in order to find ways to improve and preserve the environment in which we live. The increasing technological advances obtained in the production and development of new durable goods, such as machine tools, have increased the demand for machining processes and, in addition, the increasing use of cutting fluids has provided a search for products with a lower degree of impact To the ecosystem. Vegetable based fluids have been increasingly used by industry because, in addition to polluting less, they cause less aggression to the operator and provide a significant improvement in tool life. For the accomplishment of the present work, adaptations of temperature sensors were made in a Reichert Test type wear simulator, whose function is to provide simulations of friction and wear under controlled conditions, where tests with vegetable oils were carried out. The tribological tests are initial alternatives of analysis in the stage of development of the cutting fluids, since they allow a greater flexibility to change the formulation of the fluid where information on lubricity is obtained. The performance of the emulsifiable cutting fluid in the milling process of vermicular cast iron was evaluated. The results of the tribological tests by means of the Reichert Test were satisfactory, in a constant and stable way. The wear tests, with Tungue oil, presented yields very close to the one of Pinhão manso, and Moringa, both in the in natura state and emulsified. The Tungue vegetable base presented lower yields in the machining tests, when compared to the vegetal base of Jatropha. This can be perfectly justified because the vegetable base of Tungue does not present additives in its composition. These results point to the vegetable base of Tungue the possibility of new alternatives with renewable resources for application in the metalworking sector.