Method of propeller fabrication

Details Method of propeller fabrication Method of propeller fabrication

1994-06-02

1996-11-26

Cuda, Irene

Metal working

Method of mechanical manufacture

Impeller making

298897, 295276, B23P 1500

Patent

active

055773214

ABSTRACT:
A method of fabricating propellers including a number of spiral segments of a hub each having a corresponding blade portion are integrally formed by press forging. These spiral segments are then electron beam welded together to form a propeller. To ensure maximum weld strength, spiral segments are provided, which results in a longer weld seam. In one embodiment, the shaft is friction welded to the front of the propeller, a stud is welded to a rear end of the propeller, and the stud is machined to form a hydrodynamic end cap for the propeller.

REFERENCES:
patent: 4058880 (1977-11-01), Hughey
patent: 4555835 (1985-12-01), Buzzi et al.
patent: 4573876 (1986-03-01), Egan et al.

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