VARIABLE THICKNESS ROLL-FORMED BLANK AND ROLL-FORMING SYSTEM AND METHOD
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United States of America Patent
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Issued Date -
Jan 3, 2019
app pub date -
Jun 30, 2017
filing date -
Jun 30, 2017
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Abstract
A variable thickness roll forming system for forming a variable thickness blank including at least two sets of cylindrical shaped rollers. Each of the sets of rollers include: a first roller including a face which is linear where the first roller contacts the metal sheet; and a second roller including multiple shaping faces positioned about a perimeter and directed toward the face of the first roller. Each roller set incrementally alters a thickness of a metal sheet in a direction transverse to a metal sheet feed direction when the metal sheet is passed between the first and second rollers. The metal sheet after passing between the first and second rollers forms a roll formed blank having a first portion and a second portion positioned in the direction transverse to the feed direction with respect to the first portion, the first portion thicker than the second portion.
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