The effects of cryogenic cooling on surface integrity in hard machining: A comparison with dry machining |
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| Authors: | Domenico Umbrello Fabrizio Micari I.S. Jawahir |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Calabria, Rende, CS 87036, Italy;2. Department of Chemical, Management, Computer Science and Mechanical Engineering, University of Palermo, Palermo, PA 90128, Italy;3. Institute for Sustainable Manufacturing (ISM), University of Kentucky, Lexington, KY 40506, USA |
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| 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. |
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