Investigation on Precision NC Milling Technology of Compressor Blade Surface
CHEN Ya-li;LI Mei-rong;SONG Cheng;Air Force Military Representative Office in Shenyang Liming Aero-engine (Group) Co.Ltd;AVIC Shenyang Liming Aero-Engine (Group) Co.Ltd;
In order to improve the machining quality of the compressor blade surface and the leading and trailing edge radius, through taking measures on the technique, clamp, NC model and program and inspection technology etc, the precision milling deformation of the blade surface was reduced, and the high precision milling of the blade surface was achieved. The milling trace of blade surface was removed by felting mop and polishing. The machining quality of the leading and trailing edge radius, the surface profile error and position degree were improved obviously by the measurement of three coordinate and small radius projector. Its qualified rate increased from 20% to75%,and the processing efficiency and tool life has increased by more than 100 percent. The blade surface precision milling technology lays the foundation of top quality blade for mass production in engineering application.
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