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RESEARCH PRODUCT

An Experimental Investigation of Residual Stresses in Hard Machining of AISI 52100 Steel

José OuteiroJosé OuteiroLuigino FiliceDomenico UmbrelloSerafino CarusoFabrizio Micari

subject

DiffractionMaterials scienceMetallurgyResidual stressGeneral MedicineSurface integrityHard machiningResidual stressesMachined surfaceMachiningResidual stressCuttingPhase (matter)Settore ING-IND/16 - Tecnologie E Sistemi Di LavorazioneEngineering(all)Surface integrity

description

In this paper an experimental investigation was conducted to determine the effects of the tool cutting-edge geometry, workpiece hardness, cutting speed, and microstructural changes (white and dark layers) on the residual stresses in dry orthogonal hard machining of AISI 52100 steel. X-ray diffraction technique was used to obtain in-depth residual stresses profiles in both axial and circumferential directions. The results show that tool geometry, workpiece hardness and cutting parameters significantly affect the surface residual stress, maximum compressive residual stress below the machined surface and its location. Moreover, microstructural analysis shows that thermally-induced phase transformations have a significant impact on the magnitude and location of this maximum compressive residual stress peak.

yearjournalcountryeditionlanguage
2011-01-01Procedia Engineering
10.1016/j.proeng.2011.11.081http://dx.doi.org/10.1016/j.proeng.2011.11.081