Optimización de soldadura por fricción-agitación de la aleación de aluminio aa 6261-t5 mediante aplicación de metodología de superficie de respuesta
Artículo de revista
2013-02
Revista Latinoamericana de Metalurgia y Materiales
This article reports the results of applying the response surface methodology to evaluate the tensile strength in joints obtained by the process of friction-stir welding (SFA), depending on the speed of rotation of the tool and welding speed. The joints were welded with a conventional milling machine capable DECKEL FP4M 3 HP and a threaded cylindrical pin. In the microscopic images clearly shows the effect of the dynamic recrystallization in the stirred zone (ZA). Microhardness profiles show the typical shape of W and with metallography performed on samples tested at tension that Heat Affected Zone (HAZ) is the weakest microstructural areas of the join. The greater tensile strength of the welded joints of the aluminum alloy AA 6261-T5 by SFA (191.63 MPa) was obtained using the threaded cylindrical pin, a welding speed 315 mm / min and a rotation speed of 1600 rpm
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