Method for producing rotors with blades

Details Method for producing rotors with blades Method for producing rotors with blades

1996-11-07

1998-08-25

Cuda, Irene

Metal working

Method of mechanical manufacture

Impeller making

2988972, B23P 1500

Patent

active

057971820

ABSTRACT:
A blade for a rotor, especially a turborotor, is made of two hollow blade foot sections having matching seam surfaces to form a hollow blade with a thickened foot that is butt-welded with its blade foot sole (7) to an integral welding stub of a rotor hub or disk. The two hollow blade foot sections are soldered to each other along a radially outer seam section (5) between the seam surfaces and welded to each other along a radially inner seam section (6) between the seam surface. The radially inner seam section extends from said blade foot sole. The welded seam normally ends in the thickened blade foot section (6) and is thus shorter than the soldered seam section (5).

REFERENCES:
patent: 4526312 (1985-07-01), Goss et al.
patent: 4784573 (1988-11-01), Ress, Jr.
patent: 5332360 (1994-07-01), Correia et al.
patent: 5593085 (1997-01-01), Tohill et al.

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