Experimental investigation of the effect of tool geometry on residual stresses in high speed milling 7050-T7451 aluminium alloy
by Xiaoming Huang; Jie Sun; Jianfeng Li
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 9, No. 4, 2015

Abstract: The effects of tool geometry on residual stress distribution in the machined surface and subsurface of Al 7050-T751 were experimentally investigated. In the experiments, the residual stresses were measured by using X-ray diffraction technique in combination with electro-polishing technique. The results showed that the subsurface residual stresses generated in the end-milling cutting processes were compressive; and the nose radius, rake/relief angle and diameter of the solid end mill had a significant effect on residual stresses profiles. The dynamometer Kistler 9257A was used to measure the milling force, which was helpful to explain the phenomenon of machining induced residual stress.

Online publication date: Tue, 28-Jul-2015

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