Hydrostatic cyclic expansion extrusion process for producing ultrafine-grained rods
OwnerGhader Faraji, Farshad Samadpour +1inventors
InventorsGhader Faraji, Farshad Samadpour, Pejman Babaei
Life of this patent
Estimating the term…
Abstract
A method of producing ultrafine-grained materials and a system for mass production of ultrafine-grained materials is disclosed. The system includes a die assembly with a die channel that extends from a first end to a second end. The system also includes first punch and a second punch. A lubricant is poured into a portion of the die channel to surround a workpiece that is positioned within the die channel in order to minimize the effects of friction during processing.
Claims22
A method of producing ultrafine grain materials comprising:
- positioning a workpiece in a die channel, the die channel being formed in a die assembly;
- pouring lubricant into a first end of the die channel, thereby substantially surrounding the workpiece with the lubricant;
- and
- moving a first punch toward the workpiece and thereby pushing the workpiece toward a second end of the die channel.
A die assembly for production of ultrafine-grain materials comprising:
- a first die segment including a first die portion joined to a first panel portion;
- a second die segment including second die portion joined to a second panel portion;
- and
- the first die segment being removably attached to the second die segment.
(canceled)
(canceled)
Dependencies are inferred from the claim text.