Method and apparatus for forming flanges during hot-forming
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United States of America Patent
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Jan 21, 2014
Grant Date -
Dec 8, 2011
app pub date -
Dec 6, 2010
filing date -
Dec 4, 2009
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Abstract
A method for hot-forming and hardening a sheet-metal component with flanges in a cooled forming tool and an apparatus for carrying out the method are disclosed. A heated sheet-metal blank is inserted in a forming tool having a hollow form, with the sheet-metal blank projecting over the hollow form in marginal regions. The sheet-metal component formed from the sheet-metal blank is hardening of in the hollow form. A first flange having an X-bending axis is formed in a first marginal region with an auxiliary tool, and a second flange having a Y-bending axis is formed in a second marginal region with the auxiliary tool. The auxiliary tool has a plurality of dies, and the X- and Y-bending axes are not collinear and may be orthogonal to each other. Bending axes with a substantially perpendicular mutual orientation can be produced simultaneously in a single forming step.
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