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Full-Text Articles in Engineering
Sustainable Face Milling Of Inconel 718 Using Mql And Nanofluids Mql With Vegetable Oil As Base Fluid, Theodore Obumselu Nwoguh
Sustainable Face Milling Of Inconel 718 Using Mql And Nanofluids Mql With Vegetable Oil As Base Fluid, Theodore Obumselu Nwoguh
Doctoral Dissertations
"Extreme heat and friction are generated in machining difficult-to-cut metals used in aerospace and nuclear industries leading to poor machinability (high cutting forces, rapid tool wear, shorter tool life, and poor surface integrity). Conventional flood coolant (CEC) used in industry is environmentally unfriendly, hazardous to operators, and unsustainable. These problems motivated this research, which can be mitigated with the use of effective biodegradable cutting fluids, appropriate cutting conditions, and lubrication/cooling strategies. This research provides a sustainable and environmentally friendly replacement to CEC. Firstly, the research characterized three vegetable oils (High Oleic Soybean Oil (HOSO), Low Oleic Soybean Oil (LOSO), and …
Effects Of Machining Parameters And Cooling Strategies On Cutting Forces And Surface Integrity In High-Speed Slot End-Milling Of Titanium Alloy, Emenike Chukwuma
Effects Of Machining Parameters And Cooling Strategies On Cutting Forces And Surface Integrity In High-Speed Slot End-Milling Of Titanium Alloy, Emenike Chukwuma
Masters Theses
“Paper 1 presents the results of the investigations of the effects of cooling strategies [Emulsion cooling, Minimum Quantity Lubrication (MQL) and Liquid Nitrogen (LN2)] and machining parameters (feed rate and spindle speed) on cutting force components, cutting temperature and tool wear during slot end-milling of titanium Ti-6Al-4V workpiece. All machining experiments were conducted using four-flute 0.5 inch diameter uncoated solid carbide end-mill on Cincinnati Milacron, Sabre 750 vertical machining center equipped with Acramatic 2100 controller. Cutting force components were acquired and tool wear was indirectly measured from maximum cutting force variation per slot from the first pass to …
Effects Of Machining Parameters On Cutting Forces,Shear Angle And Friction In Orthogonal Turning Of Titanium Alloys, Hilary Onyishi
Effects Of Machining Parameters On Cutting Forces,Shear Angle And Friction In Orthogonal Turning Of Titanium Alloys, Hilary Onyishi
Masters Theses
“Paper 1 presents the results of the investigations on the effects of machining parameters on cutting forces, shear angle and friction in orthogonal turning of titanium alloy tube. Uncoated fine-grained cemented tungsten carbide (WC/Co) and Physical Vapour Deposition (PVD) TiAlN coated grade turning tool inserts, with 5⁰ and 15⁰ rake angles were used under low and high cutting speeds of 120 and 240m/min, at three different feedrates (0.05, 0.075 and 0.1 mm/rev). The experiments were conducted under flooded coolant to reflect what is practically obtainable in manufacturing industries. The experimental results show that cutting forces at two selected cutting speeds …