METHOD OF EQUAL CHANNEL ANGULAR EXTRUSION
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United States of America Patent
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May 5, 2017
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May 6, 2016
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Abstract
The present invention relates to improvements of equal channel angular extrusion (ECAE). It provides a preservation of billet shape, a simple billet ejection from tool, application of backpressure and minimizes or eliminates flashes and cracks during multi-pass processing. That way, ECAE can be performed at a large scale as a productive and cost effective industrial operation without billet reshaping and preheating between passes.
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