Method for producing a damper plate having substantially polygon

Details Method for producing a damper plate having substantially polygon Method for producing a damper plate having substantially polygon

1996-07-15

1998-10-20

Jones, David

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72709, B21D 2602

Patent

active

058230335

ABSTRACT:
There are disclosed a damper plate for a rotary machine and a method for producing thereof which makes it possible to produce a honeycomb-type damper plate with accurate dimensions and reasonable cost. In the method for producing a damper plate for sealing between a rotating portion and a stationary portion of a rotary machine and cushioning said rotating portion, the damper plate has a plurality of convex portions and concave portions, and a plurality of the convex portions and the concave portions are processed by a superplastic processing method.

REFERENCES:
patent: 3469372 (1969-09-01), Yamauchi et al.
patent: 4474044 (1984-10-01), Leistner et al.
"Superplasticity pulls ahead in metal forming", Iron Age, pp. 55-57, Nov. 1971.
"Superplasticity", Science and Technology, pp. 42-49, Sep. 1968.
F. R. Mallaire et al., "Evaluation of Wear Ring Seals for High-Speed, High-Pressure Turbopumps", Transactions of the ASME, Journal of Lubrication Technology, Jul. 1969, pp. 438-450, Figs. 18-20.

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