Medical University of South Carolina

Tighitco. Inc.

Clemson University

Michael Johannes Leonardus Van Tooren

Wout De Backer

Arturs Peteris Bergs

Ramy Harik

Igor Luzinov

Joshua Tarbutton

Zafer Gurdal

Nikolay Borodinov

Tawne Louis Castorina

Disclosed herein is a system for printing a three-dimensional object. The system can include at least one nozzle assembly configured to receive a continuous fiber and at least partially encase the continuous fiber with a polymer material to create a composite material. The nozzle assembly can also include a liquefier assembly that is operable coupled to a nozzle, which is configured to allow for the controlled deposit of the composite material while minimizing or eliminating tension exerted on the continuous fiber.

3D printing system nozzle assembly for printing of fiber reinforced parts

A composite filament for use in additive manufacturing such as fused filament fabrication is described along with methods of its construction and use. The composite filament includes a single continuous filament (e.g., a continuous carbon roving) and a polymer (e.g., a high glass transition polymer) in intimate contact. The composite filament is formed through immersion of the continuous filament in a solution of the polymer. The composite filament can be combined with an additional formation material in an additive manufacturing process.

Composite continuous filament for additive manufacturing

A part includes a continuous fiber substantially encased in a formation material. The fiber and formation material are arranged in a plurality of alternating layers such that the formation material of a first one of the alternating layers adheres to the formation material of a second one of the alternating layers over the length of the continuous fiber. The part may include a thin-walled hollow member such as a duct. In some embodiments a part comprises a continuous fiber prepared by an additive manufacturing process comprising the steps of: depositing a composite material on a print bed using a print head, the composite material comprising a continuous fiber and a formation material in intimate contact with the continuous fiber; moving the print head and/or the print bed during the depositing of the composite material; and consolidating the composite material.

3D printed continuous fiber reinforced part

A system for printing a three-dimensional object is provided. The system can include at least one print head configured to receive a continuous fiber and at least partially encase the continuous fiber with a formation material to create a composite material. The at least one print bed can be configured to move in at least six different degrees of freedom. The system can also include at least one print bed comprising a printing surface onto which the composite material may be selectively applied to form a work piece. The at least one print head can be positioned relative to the at least one print bed and configured to advance print media thereon.

Integrated robotic 3D printing system for printing of fiber reinforced parts

Growing community of inventors

Columbia, SC, United States of America

Michael Johannes Leonardus Van Tooren