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US 5,510,597 AGranted
Welded composite panels
AssigneeAlusuisse-Lonza Services Ltd.
InventorsLutz Kampmann, Peter Gloor
Life of this patent
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Abstract
Joining of two elements of aluminium or aluminum alloys, where at least one element is the outer layer forming a part of a composite. The connection is made via a weld bead made by fusion welding at least one outer layer of the one element to the second element. The invention is particularly well suited for manufacturing complex, mechanically stable, load bearing structures of any desired shape that contain composites. The invention also concerns the method for fusion welding composites in which the preparation of the weld bead area is of decisive importance.
Claims12
Process which comprises:
- joining two elements of aluminum or aluminum alloys, wherein at least one element is a composite material containing a thermally decomposable core and at least one outer layer;
- fusion welding a connection between said at least one outer layer of the composite material and the other element;
- and including the step of removing a portion of the thermally decomposable core in the region to be welded prior to welding to such an extent that a recess is formed between the outer layer and the core material at the region to be welded.
Dependencies are inferred from the claim text.