Method for forming high-strength steel into a C-shape
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United States of America Patent
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Oct 14, 2014
Grant Date -
Mar 22, 2012
app pub date -
Nov 28, 2011
filing date -
Nov 27, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
The method is performed by a power press machine composed of a concave die, a convex die with two shoulders and two depressors separately beside the convex die, and includes the steps of: a) placing the high-strength steel (HSS) on the convex die and under the concave die; b) moving the depressors to have two opposite side portions of the HSS clamped between the concave die and the depressors; c) moving the convex die to press the HSS and keeping the side portions immovable; d) forming two steps adjacent to the side portions by the shoulders; and e) cutting off the steps with the side portions.
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