Heavy duty impeller and method of fabricating the same

Details Heavy duty impeller and method of fabricating the same Heavy duty impeller and method of fabricating the same

1977-08-31

1979-05-22

Lanham, C. W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

113116D, 416184, 416199, B23P 1500, B21D 5300

Patent

active

041551516

ABSTRACT:
A fabricated, heavy duty centrifugal pump impeller wherein the relatively heavy gauge shrouds are formed by plastic deformation such as by metal spinning, stretch forming or hydroforming. The hub is similarly formed and a plurality or regularly circumferentially spaced spiral vanes extend axially therebetween so that when the hub, blades and shroud are joined by welding or brazing, there is formed a heavy duty impeller having an axially extending inlet and a radially extending annular outlet. Following the fabrication, the impeller is finished and metallized.

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Hilton, B. Richard, Welding Design and Processes, Chapman & Hall, Ltd., London, 1950, pp. 54 and 55.

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