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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2009.tde-28092009-152513
Document
Author
Full name
José Eduardo Cervelin
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2009
Supervisor
Committee
Coelho, Reginaldo Teixeira (President)
Diniz, Anselmo Eduardo
Tita, Volnei
Title in Portuguese
Estudo teórico-experimental das forças de corte no processo de torneamento
Keywords in Portuguese
Método dos elementos finitos
Simulação
Usinagem
Abstract in Portuguese
O estudo das forças de corte em usinagem tem várias aplicações, tais como definir a melhor geometria da ferramenta e sua interação com a peça. Este trabalho apresenta os resultados de simulações do processo de torneamento utilizando o método dos elementos finitos no corte ortogonal em aço AISI 4340 usando insertos de metal duro, comparando-os com resultados experimentais. As simulações foram realizadas no programa comercial Abaqus/Explicit TM considerando os efeitos térmicos do processo oriundos tanto da deformação do material quanto dos atritos nas interface peça-ferramenta-cavaco. As variáveis do processo estudadas foram a velocidade de corte e o avanço. Os resultados da força de corte simulada mostraram-se bem próximos daqueles obtidos experimentalmente, com erro médio em torno de 5%, enquanto que os da força de avanço apresentaram erro médio de cerca de 27%.
Title in English
Theoretical and experimental study of cutting forces in turning
Keywords in English
Cutting simulation
FEM
Machining
Abstract in English
Cutting force is a very important parameter, which can be used to determine tool geometry and its interaction with the workpiece. This work presents some orthogonal cutting simulations using Abaqus/Explicit TM finite element methods code with carbide tool on an AISI 4340 hardened steel workpiece. Comparison with experimental results are also carried out. The simulation considers the thermal effect caused by material deforming and friction between tool, workpiece and chips. The main parameters changed during the simulations are the cutting speed and the feed rate. As results, the simulated cutting forces showed an error around 5% and the simulated feed forces about 27% when compared to the experimental values.
 
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Publishing Date
2009-10-01
 
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