METHOD OF MANUFACTURING AXIAL FAN WHEEL
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United States of America Patent
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Issued Date -
Oct 27, 2016
app pub date -
Apr 22, 2015
filing date -
Apr 22, 2015
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Abstract
A method of manufacturing an axial fan wheel includes steps of providing a raw material; forging the raw material by a forging process to form a semifinished product of the axial fan wheel, wherein the semifinished product of the axial fan wheel includes a hub, a plurality of axial fan blades and an excess material, the axial fan blades extend from a periphery of the hub, an angle included between a surface of each axial fan blade and a rotation axis of the hub varies gradiently, and the excess material is connected to the hub and the axial fan blades; and removing the excess material to form the axial fan wheel with the hub and the axial fan blades.
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