ROBERT EARL BARBER
Pilots at Fm 2038, Bryan, TX
License number
Texas A4415575
Issued Date
Oct 2016
Expiration Date
Oct 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
2263 N Fm 2038 N FM 2038, Bryan, TX 77808
Professional information
Processing Of Hollow Sections
US Patent:
2013023, Sep 19, 2013
Filed:
Sep 7, 2012
Appl. No.:
13/606473
Inventors:
Robert E. Barber - Bryan TX, US
Karl T. Hartwig - College Station TX, US
Karl T. Hartwig - College Station TX, US
Assignee:
SHEAR FORM, INC. - Bryan TX
International Classification:
B21C 23/12
US Classification:
72264
Abstract:
A system and method provide a material with uniform micro-structure. In an embodiment, an equal channel angular extrusion system includes an interior mandrel. The interior mandrel includes an expanding shear material section and a contracting shear material section. In addition, the system includes a material. The material is disposed about a portion of the interior mandrel. Moreover, the system includes a pressure application device. The pressure application device applies pressure to the material to force the material to contact the expanding shear material section to provide an expanded post-shear material section. Pressure from the pressure application device applies pressure to the material to force the expanded post-shear material section to contact the contracting shear material section to provide a contracted shear material section.