Double-layered sheet metal; process for its production and use o

Details Double-layered sheet metal; process for its production and use o Double-layered sheet metal; process for its production and use o

1998-08-14

2000-05-16

Jones, Deborah

Stock material or miscellaneous articles

All metal or with adjacent metals

Plural layers discontinuously bonded

5278311, 527931, 527941, 219 9121, 219 9123, 2281736, 228185, B21D 4704, E04C 232, E04C 234, F16S 100

Patent

active

06063507&

ABSTRACT:
The invention relates to a double-layered sheet metal with a first layer (5) of sheet metal comprising indented knobs (4.sub.I -4.sub.IV ; 4.sub.V -4.sub.VII ; 4.sub.VIII -4.sub.XIII), with several of these knobs forming the corner points of a geometrical segment (8.sub.I, 8.sub.II, 8.sub.III) of the first layer (5) of sheet metal, with a second layer (6) of sheet metal which is connected to the first layer (5) of sheet metal in the area of the tips (4a) of the knobs (4.sub.I -4.sub.IV ; 4.sub.V -4.sub.VII ; 4.sub.VIII -4.sub.XIII), and with a filling (7) made of filling material arranged in the void remaining between the layers (5, 6) of sheet metal. With such a double-layered sheet metal the danger of "total failure" in the case of a load exceeding elastically endured deformation is reduced in that the geometrical segment (8.sub.I, 8.sub.II, 8.sub.III) comprises at least one indentation (10) by means of which any deformation of the double-layered sheet metal caused by a bending load is directed towards the filling (7) in the void. Furthermore, the invention relates to a method for producing such a double-layered sheet metal.

REFERENCES:
patent: 5228252 (1993-07-01), Nehls
patent: 5390467 (1995-02-01), Shuert
patent: 5444959 (1995-08-01), Tesch

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