DETERMINAÇÃO DO CAMPO DE TEMPERATURA DE UMA FERRAMENTA DE CORTE DE METAL DURO UTILIZANDO PROBLEMAS INVERSOS E COMSOL
Ano: 2019
Instituições de ensino: Universidade Federal de Itajubá, Universidade Federal de Itajubá, Universidade Federal de Itajubá, Universidade Federal de Itajubá
Idioma: Portugues
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Resumo
In this paper, a methodology is presented to estimate the heat flux generated in the contact region between the chip and the tool. In the estimation of heat flux, a comparison is made for three methodologies: Classic Specified Function (SFSM), iterative SFSM and Time Traveling Regularization (TTR). With the estimated heat flux the temperature distribution in the cut region was calculated, the tool hotspot and the influence of the aluminum oxide and titanium nitride coatings on the tool was analyzed. The estimated heat fluxes had little variation between the different techniques used and the temperature had the biggest difference about 3% in relation to the experimental one. The aluminum oxide coating presented a higher reduction of temperature in the cutting tool when compared to the titanium nitride coating.
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