Computer aided manufacturing technologies for centrifugal compressor impellers

The CAD/CAM technologies for manufacturing centrifugal compressor impellers and turbine blades are investigated in this research. The control data points of an impeller or a blade were obtained by using the reverse engineering method. The obtained data were used as the input data for UG CAD/CAM software to construct the CAD model. Increasing the machining efficiency during the rough and semi-finish milling process is the main consideration. Increasing machining accuracy is an important consideration for final finish milling. The planning of the tool path and the generation of the NC post-processor for manufacturing an impeller or a blade are also discussed. VERICUT was adopted to perform the NC simulation before the practical machining processes.