Estudo teórico da condução de calor e desenvolvimento de um sistema para a avaliação de fluidos de corte em usinagem / Theoretical study of heat conduction and development of a system for evaluation of cutting fluids in machining

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

30/03/2011

RESUMO

Due to the rapid growth and development of machining processes there has been a demand for environmental sustainability and news cutting fluids have been applied. A reliable assessment of their efficiency in cooling the workpiece, tools and improving productivity is still a requirement. The present thesis presents a theoretical study and a proposal of a system to assess the effectiveness of cutting fluids applied to machining operation. It begins using a mathematical approach to model the heat propagation during machining operations. Then, it continues with an investigation into different ways to solve the proposed theorical model. Machining experiments using realistic cutting operations were also conducted at the Laboratory for Optimization of Manufacturing Processes - OPF. From the experimental data, was carried out an asymptotic analysis of partial differential equations, which govern the mathematical model. Finally, the selected model will be applied to a milling operation using High Speed Machining (HSM) technique on hardened steel AISI 4340.

ASSUNTO(S)

aço aisi 4340 aisi 4340 steel coeficiente de transferência convectiva condução de calor convective coefficient edp heat conduction inverse problem machining pde problema inverso usinagem

ACESSO AO ARTIGO

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