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In machining operations, the effects of high temperatures are i) reduction in tool life, ii) production of hot chips and iii) inaccuracies in workpiece dimensions. Coolant is applied to convey away heat to extend tool life and ensure a good surface finish of the workpiece. While conventional...

The practice of copper wire drawing has faced problems regarding process, quality and manufacturing cost and satisfying world market demand of drawn wires. Of great importance to the practitioner are problems due to the interaction of process parameters during wire drawing. The present research...

China‟s use of Special Economic Zones (SEZs) to spur its remarkable economic development was seen as the way to go, particularly for least developing economies. Zambia, like most African countries, has established these zones with the help of the Chinese. In Zambia, the zones are called...

One of the main factors that led to this research on wind and solar energy hybrid application was the need to empower rural communities with communication technology, namely cellular phones which are now widely used in Zambia. A major constraint to the use of these devices in the rural areas is...

All sheet metal forming processes occur after permanent plastic deformation resulting in the material properties changing and therefore it is necessary to determine the extent to which a material can further be deformed for subsequent forming operations. Traditionally, experimental trial and...