Method and device for expanding a metal element
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United States of America Patent
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Oct 17, 2023
Grant Date -
Nov 7, 2019
app pub date -
Dec 13, 2017
filing date -
Jan 18, 2017
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Abstract
A method of expanding an elongated and at least regionally planar metal element that has two respective marginal regions oppositely disposed and extending in a longitudinal direction and a central region arranged therebetween and including cuts, the marginal regions of the metal element are moved apart transversely to the longitudinal direction and in parallel with a planar extent of the metal element such that connection portions of the central region formed by the cuts and connecting the two respective marginal regions to one another are folded, the method includes displacing the two respective marginal regions with respect to one another transversely to the planar extent of the metal element to form a displaced state, and subsequently moving apart the two respective marginal regions in the displaced state.
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