Metal deforming – By application of fluent medium – or energy field – By kinetic energy of fluid or field
Reexamination Certificate
2006-08-22
2006-08-22
Crane, Daniel C. (Department: 3725)
Metal deforming
By application of fluent medium, or energy field
By kinetic energy of fluid or field
C072S341000, C029S421200
Reexamination Certificate
active
07093470
ABSTRACT:
Methods for making skin panels suitable for use in aircraft structures and fuel tank structures, such as fuselages and reusable launch vehicle propellant tanks. A first method includes the following steps: machining a starting plate to a final part geometry; and explosive forming the machined plate to at least one of a uniaxial curvature and a biaxial curvature. A second method includes the following steps: explosive forming a starting plate to at least one of a uniaxial curvature and a biaxial curvature; and machining the curved plate to a final part geometry. Accordingly, the invention enables making integrally stiffened unitized axial load carrying skin panels that are either uniaxially or biaxially curved.
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Crane Daniel C.
Harness & Dickey & Pierce P.L.C.
The Boeing Company
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