Method of making rotor blade for a rotary machine

Details Method of making rotor blade for a rotary machine Method of making rotor blade for a rotary machine

1982-06-14

1985-02-26

Moon, Charlie T.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291568H, 416 97R, 416193A, 416241R, B21K 304, B23P 1502, B23P 1504

Patent

active

045010536

ABSTRACT:
A coolable rotor blade 14 for an axial flow rotary machine and a method for making the rotor blade are disclosed. The rotor blade includes a spar 38 and a shell 34 for defining the airfoil surface of the rotor blade. A platform 36 extends over the shell and the spar. The spar has a root 42 and an airfoil section 40. The shell is spaced from the spar and is joined to the airfoil section of the spar for defining cooling passages in the blade. The shell and the platform are each attached to the spar for support against rotational force. The method includes the steps of joining a shell to the airfoil section of the spar which extends over a portion of a projection 139 on the spar and forming a platform about the spar and the shell such that the platform is attached to the spar and extends over the projection and a portion of the shell. In one embodiment, the spar is formed of a first material, the shell of a second material, and the platform a third material.

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