Method for manufacturing a turbine shell

Details Method for manufacturing a turbine shell Method for manufacturing a turbine shell

1997-06-23

1999-02-09

Crane, Daniel C.

Metal deforming

With cutting

By shearing tool-couple

298895, B21D 2830

Patent

active

058680250

ABSTRACT:
According to the present invention, a turbine shell is manufactured by a method which includes the steps of preparing a planar blank, simultaneously forming a plurality of blade fixture slits 32A, 32B and 32C in the blank 40, and deforming the blank 40 into a curved concave shape by effecting drawing work.

REFERENCES:
patent: 2255894 (1941-09-01), Ormond
patent: 2360383 (1944-10-01), Zeidler
patent: 2779292 (1957-01-01), Zeidler
patent: 3316622 (1967-05-01), Jandasek
patent: 5243842 (1993-09-01), Kobayashi
patent: 5346366 (1994-09-01), Eguchi

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