Wear study under plastic deformation conditions

Shukla, B.M.; Singhai, S.; Singh, Devendra

doi:10.1016/0043-1648(94)90286-0

Cited by 2 publications

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“…Todavia, a fadiga mecânica também pode ocorrer devido às excessivas forças de usinagem geradas no corte de materiais muito duros. Neste caso, a deformação plástica da aresta de corte é dominante (Dearnley, 1985;Young, 1996;Shukla et al, 1994).…”

Section: Fadiga Superficial (Térmica Ou Mecânica -Pitting)unclassified

Uma contribuição ao processo de furação sem fluido de corte com broca de metal duro revestida com TiAlN

Miranda¹,

Coppini²

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e ao técnico Aristides, pelo auxilio na realização dos ensaios experimentais. À Pró-reitoria de Pesquisa e Pós-Graduação da Universidade de Taubaté pelo apoio recebido, bem como a todos os colegas do Departamento de Engenharia Mecânica pelo incentivo e amizade recebidos especialmente ao Prof. Adalberto Vieira de Mattos.Ao órgão financiador FINEP pela aquisição do material necessário para os ensaios e a TITEX, na pessoa do engenheiro Marcos Soto Ice (Gerente Regional Divisão) pelo fornecimento das brocas utilizadas nos ensaios. 4Processo de Furação 4.1 Generalidades 4.2 Qualidade da peça usinada no processo de furacão 4.3 Características geométricas das brocas helicoidais 4.4 Perfis transversais das brocas helicoidais 4.4.1 Perfil do tipo I iii 4.4.2 Perfil do tipo II 84 4.4.3 Perfil do tipo III 84 4.5 Esforços e desgastes na furacão com brocas helicoidais 85 4.5.1 Expressões empíricas para determinação dos esforços 86 5 Procedimento Experimental 89

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Section: Fadiga Superficial (Térmica Ou Mecânica -Pitting)unclassified

Uma contribuição ao processo de furação sem fluido de corte com broca de metal duro revestida com TiAlN

Miranda¹,

Coppini²

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An Experimental Approach towards an Equation for the Prediction of Piercing Mandrels Wear

Carr

Conde

Chapetti

2011

Proceedings of the Institution of Mechanical Engineers, Part J:

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Analysis of the relationship between variables involved in the wear of mandrels used for seamless tube making was carried out. Laboratory-scale mandrels were pierced in sequences with different process parameters. Process data were acquired during piercing events and digital photographs of the mandrels’ silhouette were taken to study their profile evolution. Direct variables were registered and others were created. Data were first analysed in ranges of furnace temperature and cooling water flow. A self-organizing map (a kind of artificial neural network) was trained with experimental data for further multi-variable analysis. Results were analysed from the data clusters found and conclusions were extracted. Furnace temperature and cooling water flow were important for their influence on wear but a definite relationship could not be established. Results showed that the mandrel shape and wear condition could be inferred through the study of the axial force curve. A first equation for mandrel wear prediction is introduced, taking into account the relations found between the most important variables involved in the process. Nevertheless, additional research must be done considering the billet material stress fields and friction contact conditions.

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Wear study under plastic deformation conditions

Cited by 2 publications

References 0 publications

Uma contribuição ao processo de furação sem fluido de corte com broca de metal duro revestida com TiAlN

Uma contribuição ao processo de furação sem fluido de corte com broca de metal duro revestida com TiAlN

An Experimental Approach towards an Equation for the Prediction of Piercing Mandrels Wear

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