公开(公告)号：US20240351279A1

公开(公告)日：2024-10-24

申请号：US18575196

申请日：2022-06-30

Applicant: TECHNISCHE UNIVERSITÄT BERLIN

Inventor： Mathias CZASNY ,  Aleksander GURLO ,  Stephan KÖRBER ,  Onur KABA

IPC: B29C64/209 ,  B29C64/118 ,  B29C64/295 ,  B29C64/314 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10

CPC classification number: B29C64/209 ,  B29C64/118 ,  B29C64/295 ,  B29C64/314 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10

Abstract: A print head for additively manufacturing fiber-reinforced composite materials includes a feed channel, a heating block, a nozzle and a cutting unit. A filament of the fiber-reinforced material enters an inlet of the nozzle through the feed channel, leaves the nozzle via an outlet of the nozzle, and is deposited on a print bed. The cutting unit is located inside the heating block which has a beneficial effect on the cut and/or the shearing of the material to be printed. The invention also relates to a method in which the filament is cut and/or sheared, wherein the cutting unit performs a linear movement or rotation, or the print head per se performs a linear movement or rotation, as a result of which the filament is cut and/or sheared off.