ROTORS MANUFACTURING PROCESS Russian patent published in 2006 - IPC B23P15/04 B23K31/02 

FIELD: processes for making rotors, namely fastening blades to discs of rotors impellers.

SUBSTANCE: disc 1 of impeller is mounted on axle 4 of attachment 3 and it is fixed in strictly set position relative to stationary stops 5 by means of fixing members 6. Blades 2 are arranged on radiuses along circle of disc 1 relative to stationary stops 5 and they are fixed by means of movable stops 7. Technological inserts 10 made of the same material as welded parts are arranged between blades in butt zone of blade ends 8 and end portions 9 of disc 1 for forming continuous metallic base for performing welding process. All blades are welded successively along circular path that coincides with welded butts of blades and disc at melting through the whole cross section of welded parts in lower position. Technological inserts are moved after termination of welding process.

EFFECT: simplified welding process, lowered labor consumption of making rotor at the same strength of welded joint and accuracy of rotor geometry size.

3 cl, 3 dwg