Method for bending a composite sheet and such a bent composite sheet

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United States of America Patent

PATENT NO 9776373
SERIAL NO

14518424

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Abstract

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The invention relates to a method for bending at least one edge of a composite sheet, which has at least two outer metallic layers and an inner plastic layer, in which the edge of the composite sheet is edge-bent in a first step and is bent into the finished form in at least one further method step. In addition, the invention relates to a correspondingly bent composite sheet. The object of making a method for bending a composite sheet available, in which cracks in the metallic layers of the composite sheet can be prevented and, at the same time, in which a seam can easily be provided, is achieved by using an edge-bending punch, a holding-down device and an edge-bending jaw during the edge-bending operation and by the edge-bending punch having a notch running in the bending direction below the bending edge of the edge-bending punch.

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Patent Owner(s)

Patent OwnerAddress
THYSSENKRUPP STEEL EUROPE AG47166 DUISBURG
THYSSENKRUPP SYSTEM ENGINEERING GMBH74076 HEILBRONN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Caspary, Daniel Abentheuer, DE 4 6
Marx, Arndt Mettlach-Orscholz, DE 5 7
Schott, Michael Oberhausen, DE 6 5

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