Method of fabricating a turbine engine shaft
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United States of America Patent
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Aug 30, 2016
Issued Date -
N/A
app pub date -
Dec 7, 2012
filing date -
Dec 23, 2011
priority date (Note) -
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Abstract
A method of fabricating a turbine engine shaft from a metal billet of generally cylindrical shape, the method including drilling the billet to form a through axial cylindrical bore therein, engaging a cylindrical insert in the bore, the insert being made of a material having yield stress close to that of the material of the billet so that the materials of the insert and of the billet have substantially the same behavior during forging, hot forging the billet to form a forged blank of length greater than that of the billet, withdrawing the insert, and machining the blank.
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