Abstract: “The advent of computer has brought a revolution in every field in general and the manufacturing sector in particular. Computers have been used in design, development, synthesis, analysis, tooling, manufacturing, inspection, testing etc. to name a few. Plastic parts can be produced by a variety of processes amongst which Injection moulding is the one which is popular because of its inherent advantages of producing different sizes of precision based components at a nominal cost. In this paper, the three dimensional CAD model of an exhaust fan is generated through reverse engineering concept from the point cloud data obtained from a coordinate measuring machine. From the model thus generated, an injection moulding tool is developed. The mould flow analysis is carried out using Plastic Advisor of Pro/ENGINEER 4.0.”

Keywords: computer aided design, Injection moulding, Exhaust fan, numerical control code.