2011•Journal of Nanyang Institute of TechnologyRequires access

REVERSE ENGINEERING DESIGN AND 4-AXIS NUMERICAL CONTROL MACHINING OF CENTRIFUGAL IMPELLER

MA Guo-min

Abstract

Reverse engineering design for the complicated free-form surface parts has saved the time and money.First,a kind of 3D data acquisition method for centrifugal impeller with free-form surface blade is introduced.Then the impeller data collected by three-coordinate-measuring-machine is processed and a solid model of the centrifugal impeller is built based on UG software.Finally,Using the mill multi-axis functions of the UG software,the tool paths of cutting the integral impeller are planned.Detection for interference in numerical control machining of impeller is presented.Examples verify that the method is correct and reliable.

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Key concepts: Impeller, Machining, Numerical control, Centrifugal pump, Software, Mechanical engineering, Reverse engineering, Blade (archaeology)