Invention Grant
- Patent Title: Processing of hollow sections
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Application No.: US13606473Application Date: 2012-09-07
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Publication No.: US09776232B2Publication Date: 2017-10-03
- Inventor: Karl T. Hartwig , Robert E. Barber
- Applicant: Karl T. Hartwig , Robert E. Barber
- Applicant Address: US TX Bryan
- Assignee: Shear Form, Inc.
- Current Assignee: Shear Form, Inc.
- Current Assignee Address: US TX Bryan
- Agency: Tumey L.L.P.
- Main IPC: B21C23/00
- IPC: B21C23/00 ; B21C23/12

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.
Public/Granted literature
- US20130239640A1 Processing of Hollow Sections Public/Granted day:2013-09-19
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