STUDY OF THE TECHNOLOGICAL POSSIBILITIES OF THE BALL PROCESSING METHOD IN THE MAGNETIC FIELD OF BLADES WITH OPERATIONAL DAMAGE

Purpose. To conduct a study of the technological possibilities method treatment with balls in magnetic field pen vanes that have operational damage. Research methods. A mechanical for residual stresses, developed by аcad. Davydenkov, an experimental determining endurance blades, stepwise regression methods building models. Results. The geometry blade feathers shows biggest change blades occurs peripheral zone (intersections A7-A7 and A8-A8). measurement results show microhardness surface on side trough is significantly lower than backs, highest values roughness are recorded entrance edge, which corresponds to place maximum parameters layer were studied scheme optimal mode processing steel was determined, leads 39% increase limit compared experience operation. Regression models self-oscillation frequencies run-in built two engines operated under same conditions, but different run-in. Special attention should be paid measures can minimize erosive wear edges service life engines. Scientific novelty. new proposed, allows differential feathers: only edge or entire feather. Also, you process damage, increased durability blades. Practical value. conducted studies allow us recommend use as operation restoration compressor damage form potholes inlet edges.