Method of manufacturing two tubes simultaneously and machine for use therein

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11697143
APP PUB NO 20210069765A1
SERIAL NO

16953460

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method is used to manufacture a tube having a hollow interior for housing an axle shaft. The tube is formed in a single machine having a fixed base and a single press structure movable toward the fixed base. The single machine includes first and second die assemblies coupled to the fixed base and first and second mandrels coupled to the single press structure. The method includes the steps of placing a billet into the first die assembly, pressing the billet into the first die assembly with the first mandrel to producing a pre-formed billet, and moving the pre-formed billet from the first die assembly to the second die assembly. THE method further includes the steps of pressing the pre-formed billet into the second die assembly with the second mandrel to elongate the pre-formed billet and form a hollow interior therein to produce an extruded tube.

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Patent Owner(s)

Patent OwnerAddress
AMERICAN AXLE & MANUFACTURING INCONE DAUCH DRIVE DETROIT MI 48211

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alexander, David I Beverly Hills, US 6 10
Khetawat, Mahaveer Sterling Heights, US 4 5
Pale, John A Troy, US 8 18

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