Soft touch solid-state additive manufacturing process and system
AssigneeThe Regents of the University of Michigan
InventorsAbdul Sayeed Khan, Pingsha Dong, Lei Zuo
Life of this patent
Estimating the term…
Abstract
An additive manufacturing system for additive manufacturing a feedstock material upon a substrate comprising a feedstock supplying system configured to supply the feedstock material; and an extrusion die system having a rotating drive system configured to rotate an extrusion die member relative to and in physical contact with the stationary feedstock material to generate friction sufficient to locally heat the feedstock material.
Claims19
An additive manufacturing system for additive manufacturing a feedstock material upon a substrate, the additive manufacturing system comprising:
- a feedstock supplying system including a stationary guide tube configured to supply the feedstock material;
- and
- a rotating extrusion die system having a drive system including a rotating spindle surrounding the stationary guide tube and an extrusion die member mounted to the rotating spindle, the rotating spindle being configured to rotate the extrusion die member relative to and in physical contact with the feedstock material to generate friction sufficient to locally heat and soften the stationary feedstock material, the rotating extrusion die member having an extrusion orifice through which the heated and softened feedstock material is extruded, wherein the extrusion die member does not contact the feedstock material at any tangential or circumferential surface of the feedstock material and the feedstock does not rotate in any case.
An additive manufacturing system for additive manufacturing a feedstock material upon a substrate, the additive manufacturing system comprising:
- a feedstock supplying system configured to supply the feedstock material;
- and
- a rotating extrusion die system having a drive system configured to rotate an extrusion die member relative to and in physical contact with the feedstock material to generate friction sufficient to locally heat and soften the stationary feedstock material, the rotating extrusion die member having an extrusion orifice through which the heated and softened feedstock material is extruded, wherein the extrusion die member includes a die retainer having an opening therein and an insert received in the opening, the extrusion orifice extending through the insert, the insert being fixed for rotation with the extrusion die member.
An additive manufacturing system for additive manufacturing a feedstock material upon a substrate, the additive manufacturing system comprising:
- a feedstock supplying system configured to supply the feedstock material;
- and
- a rotating extrusion die system having a drive system configured to rotate an extrusion die member relative to and in physical contact with the feedstock material to generate friction sufficient to locally heat and soften the stationary feedstock material, the rotating extrusion die member having an extrusion orifice through which the heated and softened feedstock material is extruded, wherein the feedstock supplying system includes a channel with an end nut removably mounted to a distal end of the channel and having an aperture through which the feedstock is delivered and a retainer washer opposing the end nut.
An additive manufacturing system for additive manufacturing a feedstock material upon a substrate, the additive manufacturing system comprising:
- a feedstock supplying system configured to supply the feedstock material;
- and
- a rotating extrusion die system having a drive system configured to rotate an extrusion die member relative to and in physical contact with the feedstock material to generate friction sufficient to locally heat and soften the stationary feedstock material, the rotating extrusion die member having an extrusion orifice through which the heated and softened feedstock material is extruded;
- and
- a flash cutting feature mounted to the rotary extrusion die system, wherein the flash cutting feature includes a radial passage.
Dependencies are inferred from the claim text.