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Impellers are important components in the field of precision
machine, energy technology, and aerospace industries.¡@Due to their
complex geometries and higher degrees of interference, to produce a
impeller with high precision dimension is a challenging technology.
¡@¡@ In this study, flank milling is used to machine blade
surfaces of impeller instead of point cutting. Flank milling can
provide a surface better than point cutting without addition
processes.¡@When blades of an impeller are designed by ruled
surfaces, the impeller can be machined by flank cutting technology.
Based on the type of a five-axis CNC machine, the objective of this
project is aimed to develop the technology of five-axis machining
for impellers.¡@The involved techniques are : the identification of
undercutting in flank cutting for ruled surfaces, five-axis tool
paths generation, coordinate transformations for five-axis
machining, and determination of cutting parameters. In addition, a
practical application example is provided to show the feasibility
and effectiveness of the developed procedure. |