Avaliação de diferentes ferramentas no torneamento da liga Inconel 713C / Evaluation of different tools in turning of Inconel 713C

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

27/02/2012

RESUMO

The super alloy Inconel 713C is an alloy whose main element of its composition is nickel. The combination of high levels of this element and the structure of this material makes it very difficult to be transformed by the machining process. Because of this difficulty and lack of information about the machining of this material, the purpose of this study was to find a combination of tool and cutting parameters to present a tool life of around 15 minutes, which is considered economically viable for industrial practice. To achieve this purpose it was tested cemented carbide tools with two different geometries, four types of coatings (TiAlN, TiN, TiAlN, TiCN-Al2O3-TiN and Al2O3) in addition to the carbide tool without coating were tested. Tools were also tested ceramics (Al2O3 (pure), Si3N4 (sialon) + Al2O3 SiCw (whiskers)) and CBN. Among the tests, the carbide tool geometry CNMX and coating TiAlN presented a lower wear rate than the others tested with a life of approximately 17 minutes of cutting.

ASSUNTO(S)

usinagem torneamento desgaste fisico desgaste mecânico ligas de niquel machinability turning physical wear mechanical wear nickel alloys

ACESSO AO ARTIGO

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