6533b827fe1ef96bd1286e1f

RESEARCH PRODUCT

The effects of cryogenic cooling on surface integrity in hard machining: A comparison with dry machining

Fabrizio MicariI.s. JawahirDomenico UmbrelloDomenico Umbrello

subject

Materials scienceMachiningResidual stressMechanical EngineeringPhase (matter)MetallurgyDry machiningSurface roughnessCryogenic treatmentIndustrial and Manufacturing EngineeringGrain sizeSurface integrity

description

Abstract This paper presents results of an experimental study of cryogenic machining of hardened AISI 52100 steel, focusing on surface integrity. Experiments were performed under dry and cryogenic cooling conditions using CBN tools varying cutting speeds, workpiece hardness and tool geometry. Surface integrity parameters (surface roughness, white layer thickness, residual stresses, metallurgical conditions including grain size, phase transformation, etc.) were investigated to establish the effects of cryogenic cooling on the surface integrity of the machined component, and results were compared with those from dry hard machining. Overall, cryogenic cooling provides improved surface integrity leading to extended product life and performance.

yearjournalcountryeditionlanguage
2012-01-01CIRP Annals
https://doi.org/10.1016/j.cirp.2012.03.052