The effects of Cryogenic Cooling on Surface Integrity in Hard Machining

• DOI: 10.1016/j.proeng.2011.11.127
• Publication Date: 2011-12-04T01:48:00Z
• Authors: D. Umbrello; Z. Pu; S. Caruso; J.C. Outeiro; A.D. Jayal; O.W. Dillon; I.S. Jawahir
• Keywords: Surface Integrity; Characterization; Cryogenic Treatment; Cryogenics; Energy-dispersive X-ray spectroscopy

This paper presents the results of an experimental investigation to determine effects cryogenic coolant on surface integrity in orthogonal machining hardened AISI 52100 bearing steel. Experiments were performed under dry and conditions using chamfered CBN tool inserts. Several techniques used analyzing machined subsurface: optical scanning electron microscopes (SEM) utilized for topography characterization; chemical characterization (phase study) was carried out by means Energy-dispersive spectroscopy (EDS) techniques; X-ray diffraction (XRD) technique residual stresses phase changes induced machining. The show benefits future potential cooling enhancement achieve improved product's functional performance hard