Lightweight element / semi-finished part made of two or more structured sheet metals or combination of structured and smooth sheet metals

The invention is a lightweight element / semi-finished part with an extensive surface consisting of at least two layers of sheet metal and one structured sheet metal. The structured blank is typified by macro-stiffening elements without any markedly flat even sections and has a honeycomb form. The single blanks are laid on top of each other and held together by joints. Components may be straight or bent, according to need. The invention not only markedly increases the stiffness characteristics of the light-weight elements but also minimizes the weight.

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