Centrifugal blade for a turbine - rotor method for making the sa

Details Centrifugal blade for a turbine - rotor method for making the sa Centrifugal blade for a turbine - rotor method for making the sa

1976-12-21

1978-09-26

Gilden, Leon

291568B, 72200, 72342, 72379, B21D 5100

Patent

active

041161491

ABSTRACT:
A T-root, centrifugal turbine rotor blade which is manufactured from sheet stock. The T-root is produced by shaping the rim of the sheet stock under pressure. The sheet stock is given a rim contour which is geometrically similar to the final contour of the blade root, but is larger by a seam which is shaped under pressure for forming a T-shape having the rim contour of the blade root. After the sheet rim is shaped, a plurality of blades are cut or stamped from the sheet stock. The latter may be in annular form, and may possess various curvatures over its circumference. The sheet stock may be curved three-dimensionally before the T-rim produced.

REFERENCES:
patent: 2638663 (1953-05-01), Bartlett et al.
patent: 2848190 (1958-08-01), Barr
patent: 2959843 (1960-11-01), Vitvlugt
patent: 3002264 (1961-10-01), Hollis et al.
patent: 3314137 (1967-04-01), Schellens
patent: 3458119 (1969-07-01), Shaw
patent: 3762835 (1973-10-01), Carlson et al.
"Extruded Blades," Product Engineering, Nov. 1948, p. 246.

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