Method of manufacture of honeycomb noise attenuation structure f

Details Method of manufacture of honeycomb noise attenuation structure f Method of manufacture of honeycomb noise attenuation structure f

1980-11-18

1985-06-11

Ramsey, Kenneth J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

181292, 228181, 228194, 228175, B23K 104

Patent

active

045228590

ABSTRACT:
Method of manufacturing broad band attenuation panel structure and the resulting structure therefrom for utilization in high temperature applications, having a maximum temperature in the range of 1600.degree. F. The panel comprises a cellular core constructed of Inconel, titanium alloys, 321 stainless steel, P H hardened stainless steel and the like, positioned between and brazed, liquid interface diffusion (LID) bonded, or diffusion bonded to two facing sheets, one imperforate and one perforated, the facing sheets constructed of a similar material. A sheet of porous metal overlay made of Inconel, nickel, monel, stainless steel alloys or the like is diffusion bonded to the outer surface of the perforated facing sheet.
The sequential steps of sizing, cleaning, plating, and heating are set forth as well as the details of pressure, temperature, and protective atmosphere, and protective materials.

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patent: 4029254 (1977-06-01), Blair et al.
patent: 4059217 (1977-11-01), Woodward
patent: 4254171 (1981-03-01), Beggs et al.

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