Forming apparatus, shoe thereof and forming method
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United States of America Patent
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Oct 13, 2015
Grant Date -
Feb 3, 2011
app pub date -
Feb 26, 2009
filing date -
Mar 3, 2008
priority date (Note) -
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Abstract
A forming apparatus and method for forming a sectional profile of round tubing, angled tubing or open forming stock without losing the manufacturability of conventional roll forming The forming apparatus comprises individual shoe blocks having a pass on their rotating curved faces. The shoe blocks can be moved in the circumferential direction on an endless track, and are connected to provide the same curvature radius and length as a required arc segment of a virtual large-diameter circle.
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