Method for manufacturing cold-forged, extruded aluminum alloy tube

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United States of America Patent

PATENT NO 11872616
APP PUB NO 20210053099A1
SERIAL NO

16546433

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Abstract

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A method for manufacturing a cold-forged, extruded aluminum alloy tube includes the steps of: providing a primary material having a hollow columnar shape and made of an aluminum alloy material, and a first cold extrusion apparatus; processing the primary material to form a preform; subjecting the preform to a homogeneous annealing by heating to a temperature of about 410° C. to 510° C. and then cooling to a temperature of about 160° C. to 200° C.; testing the hardness of the preform; immersing the preform in a tank containing lubricant having a total acidity concentration of 40 to 50 mg/L at a working temperature of 80° C. to 100° C.; and subjecting the preform to cold extrusion.

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Patent Owner(s)

Patent OwnerAddress
JIN YUNCHENG ENTERPRISE CO LTDNO 80 SHUNFAN 11TH ST DAJIA DIST TAICHUNG CITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Kun-Tzu Taichung, TW 10 28
Lin, Yi-Siang Taichung, TW 3 2

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