Artículo
Determination and Analysis of Residual Stresses Induced by High Speed Milling Using a Micro-indent Method
Fecha de publicación:
06/2018
Editorial:
Maxwell Science Publication
Revista:
Research Journal of Applied Sciences, Engineering and Technology
ISSN:
2040-7459
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The purpose of this work is to determine and analyze residual stress normal components and anisotropy degrees introduced by high-speed milling in specimens of AA 6082-T6 and AA 7075-T6 aluminum alloys. At each machined sample, the climb and conventional cutting zones were evaluated and compared. This paper includes a comprehensive study of thermal and mechanical effects associated with the residual stress introduction. For normal components determination, an optimized micro-indent method was used. Each measurement sequence from this approach was performed using a high accuracy measuring machine and classified according to thermal deviations measured. The residual displacements were determined with an absolute error down to ±300 nm. The normal components analysis allowed to infer the strong influence of the rolling process previous to high-speed milling and besides, the stress levels associated with thermal effects (higher in AA 7075-T6). Finally, the lower residual stress anisotropy degrees in both materials observed in the conventional cutting zone would indicate more homogenous local plastic stretching in this region for all planar directions.
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Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Vottero, S.; Diaz, Felipe Victor; Mammana, Claudio Alejandro; Guidobono, A.; Determination and Analysis of Residual Stresses Induced by High Speed Milling Using a Micro-indent Method; Maxwell Science Publication; Research Journal of Applied Sciences, Engineering and Technology; 15; 6; 6-2018; 236-241
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