Friction welded metallic turbomachinery blade element

Details Friction welded metallic turbomachinery blade element Friction welded metallic turbomachinery blade element

1973-06-18

1976-09-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Welded, cemented or fused

416241R, F01d 528

Patent

active

039828549

ABSTRACT:
A friction welded metallic article such as a fluid directing element for turbomachinery apparatus has a cast airfoil and a wrought base joined by friction welding. One such article having a hollow interior portion is made from a hollow or cored casting and a wrought base member. There is provided a metal airfoil casting having a hollow interior portion and an enlarged foot including an interface portion. Also provided is a wrought metal base portion including an interface portion. Interface surfaces of the interface portions are placed in spaced apart opposed relationship and then the airfoil casting and the wrought base member are friction welded at their interface portions.

REFERENCES:
patent: 2431660 (1947-11-01), Gaudenzi
patent: 2749029 (1956-06-01), Goetzel et al.
patent: 2767460 (1956-10-01), Schultz
patent: 2807435 (1957-09-01), Howlett et al.
patent: 2888239 (1959-05-01), Slemmons
patent: 3394918 (1968-07-01), Wiseman
patent: 3549273 (1970-12-01), Bird et al.
patent: 3700348 (1972-10-01), Corsmeier et al.
patent: 3768147 (1973-10-01), Berry et al.

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