Conventional drilling is a multipoint, end cutting tool that involves cutting of a hole into a solid. The present work entailed the use of Electric Discharge Machining (EDM)technique to produce micro-holes in two different materials using copper and brass electrode tubes. The workpiece materials were selected on the basis of their use in biomedical implants and aerospace engineering. Optimization of the factors and their levels were accomplished using L-16 orthogonal array by Taguchi method. It was observed that workpiece material S.S.-316L can be best machined with brass electrode-tube...

Grinding is most widely used machining process as it provides reasonable material removal rate along with desirable surface quality especially for hard and high strength materials. Present work studies the interaction of Tangential force and Specific Energy with different process parameters such as wheel speed, table speed, grit size and depth of cut. Grinding is high specific energy process and specific grinding energy is one crucial performance parameter of grinding. Primary energy components such as shearing due to chip formation, rubbing and ploughing are the major contributors to the...

Quality of services rendered to the patients is of vital importance in the whole process of health-care. On account of large population of the country, poor per capita income, inadequate ratio of number of patients to the number of doctors as well as poor medical infrastructure the quality is quiet poor and needs urgent attention on the part of planners and executers of health-care systems in the country. In the wake of above it was decided to have a preliminary critical look at the current health-care system. The overall volume being very large it was decided to focus on small segment using...