ROUGHING OF CENTRIFUGAL MONOSPROCKETS OF A TURBINE ENGINE WITH APPLYING OF PLUNGER MILLING ON PROCESSING CENTERS FROM THE MACHINes OF NUMERICAL CONTROL

V.A. Panasenko, A.Y. Kashan, V.F. Mozgovoj

The results of operational use of a method of plunger milling of centrifugal monosprockets of turbine jets on processing centers from the machines of numerical control are introduced. The methods of opening-up of the pilot programs of treating of blade-to-blade room ЦБК are reviewed. The proposed method of application both know-how has provided high efficiency and stable result on a kept shrinkage allowance. The held studies have shown a considerable decrease of complexity at implementation of operations of a roughing of blade-to-blade room concerning other methods of machine work. At availability of blade surfaces the selected instrument and the cutting modes have provided stable process at high efficiency and guaranteed shrinkage allowance under further machine work.

Key words: сentrifugal sprocket, aero-engine, plunger treating, milling cutter, machine tool from the numerical control, body of a tube expander, hard-alloy lamina.