METHOD FOR MANUFACTURING A ONE-PIECE WHEEL BY FORGING AND A ONE-PIECE WHEEL MANUFACTURED THEREBY
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United States of America Patent
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Issued Date -
Jun 8, 2023
app pub date -
Apr 12, 2022
filing date -
Dec 2, 2021
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Abstract
A method for manufacturing a one-piece wheel by forging includes: producing an integral forging comprising: a disc portion, a rim portion, and an annular protrusion protruding from one side of the disc portion in a forging method; producing an outer bend by bending the annular protrusion through a flow-forming process; and forming a hollow portion by welding one end of the outer bend to one side of the rim portion. The method manufactures the one-piece wheel having stronger shear strength and stiffness and better fatigue life even while reducing the noise using the forging method.
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