Fused deposition modelling machine is an environment friendly additive manufacturing technology which is free from geometry of part to be print.In this technology Poly lactic acid (PLA) a biodegradable feed wire is used as a raw material to print the part.In this paper a mathematical model of feed wire is developed.Here in it the expression of total pressure drop is obtained by using Taylor's series expression including the temperature effect according to Arrhenius equation.The paper deals the effect of nozzle geometrical parameters like nozzle angle, exit diameter and section height on pressure drop and melts flow behavior of 3 mm PLA feed wire.The total pressure drop analysis is done by using the mathematical expression by varying nozzle angle from 30 0 to 120 0 and exit diameter from 0.2 mm to 0.4 mm.
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Haleem et al. (2017) studied this question.
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