US 12,502,701 B2 · Shear assisted extrusion apparatus, tools, and methods

Abstract

Shear assisted extrusion apparatus, tools, inserts, and/or methods are provided. The apparatuses can include: an extrusion receiving channel operably engaged with a tool to receive extruded material; and one or more openings aligned between the spindle ends, the openings configured to convey fluid to the extruded product. Example tools can include one or more openings aligned between the tool ends. Example methods can include quenching plasticized feed material before exiting the spindle. A spindle assembly and/or tool assembly inserts are also provided that can include a sleeve extending within one or both of the spindle assembly or tool assembly of the apparatus; and openings within the sleeve configured to convey fluid to within one or both of the receiving channel of the spindle assembly or the tool assembly.

Claims26

Dependent claims

A shear assisted extrusion apparatus, the apparatus comprising:

a spindle assembly extending from a first end to a second end, the spindle assembly configured to rotate;
a tool rotated by the spindle assembly and defining the second end of the spindle assembly, the tool defining a face that is generally perpendicular to an axial extrusion force, the face configured to engage feed material with shear force provided in part by rotation of the tool;
a channel extending through an interior of the spindle assembly and the tool to receive extruded material, wherein the channel is defined by a wall of a fluid conduit that is fixed, about which the spindle assembly is configured to rotate;
and
one or more openings fluidically coupled with the fluid conduit and configured to convey fluid to the extruded material in the channel.

2 more elements

Dependencies are inferred from the claim text.

Shear assisted extrusion apparatus, tools, and methods

Life of this patent

Shear assisted extrusion apparatus, tools, and methods

Life of this patent

Abstract

Claims26