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Machinability Improvement During High-Speed End-Milling Of Inconel 718 Alloy, Chukwujekwu Nnadi
Machinability Improvement During High-Speed End-Milling Of Inconel 718 Alloy, Chukwujekwu Nnadi
Masters Theses
“This thesis presents the results of the experimental investigation of the effects of machining parameters (spindle speed and feedrate) and cooling strategies [Minimum Quantity Lubrication (MQL), Cryogenic Liquid Nitrogen (LN2), and combined (MQL+LN2)] on cutting force components, cutting temperature, tool wear and surface roughness during high-speed slot end-milling of Inconel 718 alloy. In addition, a comparative evaluation of the three cooling strategies was conducted for cutting force components, surface roughness and residual stresses. All end-milling experiments were conducted on a Cincinnati Milacron Vertical Machining center (VMC), using a 0.5 inch (12.7 mm) diameter, 0.03 inch (0.762 …