公开(公告)号：US11198252B2

公开(公告)日：2021-12-14

申请号：US16327204

申请日：2017-08-22

Applicant: Stratasys, Inc.

Inventor： Clint Newell

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/227 ,  B29C64/379 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/295 ,  B25J9/04 ,  B29C64/106 ,  G06F30/00 ,  B29C64/241 ,  B33Y40/00 ,  B33Y70/00 ,  B29C64/245 ,  B29C64/30 ,  G06F119/18

Abstract: A multiple axis robotic additive manufacturing system includes a robotic arm movable in six degrees of freedom. The system includes a build platform movable in at least two degrees of freedom and independent of the movement of the robotic arm to position the part being built to counteract effects of gravity based upon part geometry. The system includes an extruder mounted at an end of the robotic arm. The extruder is configured to extrude at least part material with a plurality of flow rates, wherein movement of the robotic arm and the build platform are synchronized with the flow rate of the extruded material to build the 3D part.

公开(公告)号：US20210354368A1

公开(公告)日：2021-11-18

申请号：US17443597

申请日：2021-07-27

Applicant: Stratasys, Inc.

Inventor： Robert L. Zinniel ,  S. Scott Crump ,  Dominic F. Mannella

IPC: B29C64/118 ,  B29C64/124 ,  B29C64/40 ,  B33Y30/00 ,  B29C64/295 ,  B21C33/02 ,  B33Y10/00 ,  B29C48/92 ,  B29C64/20

Abstract: An additive manufacturing system configured to a 3D print using a metal wire material includes a drive mechanism configured to feed the metal feedstock into an inlet tube and a liquefier. The liquefier has a chamber configured to accept the metal feedstock from the inlet tube. The metal feed stock is heated in the chamber such that a melt pool is formed in the chamber. The liquefier has an extrusion tube in fluid communication with the chamber, the extrusion tube having a length (L) and a diameter (D) wherein the ratio of length to diameter (L/D) ranges from about 4:1 to about 20:1. The system has a platen with a surface configured to accept melted material from the liquefier, wherein the platen and the liquefier move in at least three dimensions relative to each other. The system includes a regulated source of pressurized inert gas flowably coupled to the liquefier and configured to place a controlled positive pressure onto the melt pool sufficient to overcome the resistance of the extrusion tube such that a part may be formed by the extrusion of the liquidus metal along toolpaths defined by the relative motion of the liquefier and the platen.

公开(公告)号：US20210347123A1

公开(公告)日：2021-11-11

申请号：US17379499

申请日：2021-07-19

Applicant: Stratasys, Inc.

Inventor： Clint Newell

IPC: B29C64/379 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/295 ,  B29C64/209 ,  B25J9/04 ,  B29C64/227 ,  B29C64/106 ,  G06F30/00 ,  B29C64/241 ,  B33Y40/00 ,  B33Y70/00 ,  B29C64/245 ,  B29C64/118 ,  B29C64/30

Abstract: A method of printing a hollow part with a robotic additive manufacturing system includes extruding thermoplastic material onto a build platform movable in at least two degrees of freedom in a helical pattern along a continuous 3D tool path with an extruder mounted on a robotic arm, to thereby print a hollow member having a length and a diameter. The method includes orienting the hollow member during printing by moving the build platform based on a geometry of the hollow member wherein the movement of the build platform and the movement of the robotic arm are synchronized to print the part without support structures.

公开(公告)号：US11046014B2

公开(公告)日：2021-06-29

申请号：US16108801

申请日：2018-08-22

Applicant: Stratasys, Inc.

Inventor： Vittorio L. Jaker ,  Luke M. B. Rodgers

IPC: B29C64/40 ,  C08L81/06 ,  B29C64/307 ,  C08L71/12 ,  C08L81/00 ,  G03G15/22 ,  B33Y10/00 ,  B33Y70/00 ,  B29K81/00 ,  B29K79/00 ,  B29C64/118

Abstract: A support material for use in an additive manufacturing system to print a support structure for a three-dimensional part. The support material includes a base resin that is substantially miscible with a part material used to print the three-dimensional part, and has a glass transition temperature within about 10° C. of a glass transition temperature of the part material. The support material also includes a dispersed resin that is substantially immiscible with the base resin, where the base resin and the dispersed resin are each thermally stable for use in the additive manufacturing system in coordination with the part material.

公开(公告)号：US11045997B2

公开(公告)日：2021-06-29

申请号：US16064275

申请日：2016-12-20

Applicant: Stratasys, Inc.

Inventor： Adam R. Pawloski ,  Theresa Sherar

IPC: B29C64/40 ,  B29C64/118 ,  C08F226/10 ,  B33Y70/00 ,  C08F226/06 ,  C08F220/18 ,  B33Y10/00 ,  B29K105/00

Abstract: A support material for use in an additive manufacturing system includes a copolymer of vinyl pyrrolidone (VP) monomers and elastomeric monomers. The elastomeric monomers and the VP monomers are covalently bonded and copolymerized. The support material is thermally stable even at temperatures above 80° C. and is disintegrable in aqueous solutions such as tap water.

公开(公告)号：US20200331197A1

公开(公告)日：2020-10-22

申请号：US16919395

申请日：2020-07-02

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder ,  William J. Swanson

IPC: B29C64/118 ,  B33Y30/00 ,  B29C64/386 ,  B33Y40/00 ,  B29C64/295 ,  B29C64/321 ,  B33Y10/00 ,  B33Y50/02

Abstract: A print assembly 18 for use in an additive manufacturing system 10 to print three-dimensional parts 12, which includes a coarse positioner 40, a fine positioner 42, and a liquefier assembly 20, where a portion of the liquefier assembly 20 is operably mounted to the fine positioner 42 such that the fine positioner 42 is configured to move the portion of the liquefier assembly 20 relative to the coarse positioner 40.

公开(公告)号：US10807302B2

公开(公告)日：2020-10-20

申请号：US15783711

申请日：2017-10-13

Applicant: Stratasys, Inc.

Inventor： Luke M. B. Rodgers ,  Vittorio L. Jaker

IPC: C08L79/08 ,  B29C64/118 ,  C08L61/02 ,  B33Y10/00 ,  B29C64/112 ,  B29C64/336 ,  B33Y70/00 ,  B29K79/00 ,  B29K105/00 ,  B29C71/00 ,  B29K71/00 ,  B29C71/02

Abstract: A polymeric material includes a semi-crystalline polymer and a secondary material wherein when the secondary material is combined with the semi-crystalline polymer to form a blend having an enthalpy that is between about 2 J/g heat of fusion and about 80% of the heat of fusion of the neat semi-crystalline material, as measured by differential scanning calorimetry (DSC) when cooling from a melting temperature to a hot crystalline temperature at a rate of 10° C./min.

公开(公告)号：US10744753B2

公开(公告)日：2020-08-18

申请号：US15514740

申请日：2015-09-28

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder ,  William J. Swanson

IPC: B33Y50/02 ,  B33Y30/00 ,  B29C64/20 ,  B29C64/386 ,  B33Y40/00 ,  B29C64/106 ,  B33Y10/00 ,  B29K105/00

Abstract: A print assembly for use in an additive manufacturing system to print three-dimensional parts, which includes a coarse positioner, a fine positioner, and a liquefier assembly, where a portion of the liquefier assembly is operably mounted to the fine positioner such that the fine positioner is configured to move the portion of the liquefier assembly relative to the coarse positioner.

公开(公告)号：US20200207025A1

公开(公告)日：2020-07-02

申请号：US16643275

申请日：2018-10-10

Applicant: Stratasys, Inc.

Inventor： William R. Priedeman

IPC: B29C64/40 ,  C08F212/14

Abstract: A water-dispersible addition-type sulfonated thermoplastic copolymer material for use as a consumable feedstock additive manufacturing, wherein the water-dispersible thermoplastic copolymer is a reaction product of an addition-type reaction of a metal sulfonated monomer, the water-dispersible sulfonated thermoplastic copolymer being dispersible in tap water in less than one hour.

公开(公告)号：US10688721B2

公开(公告)日：2020-06-23

申请号：US16327531

申请日：2017-08-23

Applicant: Stratasys, Inc.

Inventor： William J. Swanson ,  Dominic F. Mannella

IPC: B29C64/25 ,  B33Y30/00 ,  B29C64/227 ,  B29C64/364

Abstract: An additive manufacturing system includes a build chamber with at least first and second side walls and top and bottom walls. A central deformable, thermal insulator has a first edge and a second edge, where a print head carriage is movably retained within the central deformable thermal insulator and is configured to move print heads within a build plane of the build chamber under control of a gantry. The system includes first and second dynamic thermal barriers each having a length between a proximal edge and a distal edge wherein the proximal edge is configured to be secured to the central deformable insulator and a distal edge is configured to be movably retained to the build chamber such that as the print head carriage moves laterally across the build plane, each dynamic thermal barrier moves with the central deformable insulator and print head carriage, and retains its length.