Effect of Machining Parameters on Surface Integrity in Dry Turning of Inconel 718

Xiao Li Zhu; Jin Fa Zhang; Wu Jun Chen; Ji Wen Deng

doi:10.4028/www.scientific.net/AMR.634-638.2831

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 634-638Effect of Machining Parameters on Surface...

Effect of Machining Parameters on Surface Integrity in Dry Turning of Inconel 718

Abstract:

Surface quality including residual stresses and surface roughness due to turning operations in Inconel 718 were studied as a function of cutting speed, feed rate and depth of cut. By means of X-ray radiation diffraction method, the influence of cutting parameters on residual stress was investigated. The results show that dry cutting of Inconel 718 resulted in predominantly tensile residual stresses at the machined surface and the surface roughness increased with the increase of cutting parameters.The effects of the cutting parameters on surface integrity are investigated while employing the range analysis. From these results it was possible to select a combination of cutting speed, feed rate and depth of cut that generate favorable surface characteristics.