Patent ID: 8245750
Filing Date: 2012-08-21
Classification: B23K,B32B,Y10T

Abstract:
1. A tool for use in bonding a multi-layer composite shell having complex curvature by the delta-alpha high temperature bonding process, the tool comprising: (a) a plurality of segments that combine to form a mandrel assembly having a longitudinal axis, a lower end, an upper end, and at least one substantially continuous outer surface, the outer surface having a substantially axisymmetric shape including complex curvature, the plurality of segments including first second, third and fourth segments with the third and fourth segments being circumferentially spaced apart from one another by the first and second segments; and (b) wherein when combined to form the mandrel assembly, the third and fourth segments are configured to be movable in a substantially inward direction without substantial obstruction by the first and second segments which remain in position, and the first and second segments are configured to thereafter be movable in a substantially inward direction independent of the third and fourth segments.