Metal working – Expanded metal making
Patent
1988-01-27
1989-11-28
Eley, Timothy V.
Metal working
Expanded metal making
29 235, 291568R, 291568H, 294211, 228157, 228190, B23K 3102
Patent
active
048828238
ABSTRACT:
A method is set forth of forming a hollow structure having a varying mass distribution. Two sheets of a diffusion bondable and superplastic formable material are formed with one flat surface and an opposite surface contoured to have a selected mass distribution. A stop-off material is applied between selected non-peripheral portions of each of the flat surfaces whereat diffusion bonding is to be prevented and superplastic forming is to be required. An intermediate flat core sheet may also be present. The flat surfaces are positioned in abutting relation to each other or to the intermediate flat core sheet. The sheets are subjected to diffusion bonding conditions. The sheets are superplastically formed to expand them apart against a die. The invention also provides a method of preinflating contoured sheets prior to superplastically forming them to avoid truss core rupture. Hollow aircraft engine components are formed by the methods.
REFERENCES:
patent: 2766514 (1956-10-01), Adams
patent: 4292375 (1981-01-01), Ko
patent: 4331284 (1982-05-01), Schultz et al.
patent: 4406393 (1983-09-01), Ascani, Jr.
patent: 4483478 (1984-11-01), Schultz
patent: 4526312 (1985-07-01), Goss et al.
Fischer John R.
McCauley William L.
Weisert Edward D.
Eley Timothy V.
Ontario Technologies Corp.
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