METHOD FOR THREE-DIMENSIONAL SHAPING OF FLAT MATERIAL
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United States of America Patent
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Nov 8, 2018
app pub date -
May 4, 2018
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May 4, 2018
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Abstract
A method for three-dimensional shaping of flat material, in particular material composed of natural fibers, such as paper or cardboard, for example, uses a deep-drawing piston and a die, through which or into which the material is drawn. The diameter of the deep-drawing piston plus the material thickness of the material to be deep-drawn corresponds at least approximately to the diameter of the die.
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