公开(公告)号：US20240066797A1

公开(公告)日：2024-02-29

申请号：US17893492

申请日：2022-08-23

Applicant: Markforged, Inc

Inventor： Maxim Seleznev ,  Joseph Roy-Mayhew ,  Benjamin Gallup ,  Yuwei Li ,  Michael Imburgia

IPC: B29C64/209 ,  B29C64/295 ,  B29C64/321 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/209 ,  B29C64/295 ,  B29C64/321 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/118

Abstract: A 3D printing apparatus and method includes a piezo actuator that reciprocates a tappet. The reciprocation of the tappet generates pressure within a chamber filled with molten print material. The generated pressure causes the molten print material to be extruded through a nozzle coupled to the chamber. The piezo actuator is controlled to switchably provide continuous extrusion of print material or extrusion of discrete droplets of print material.

公开(公告)号：US20230201925A1

公开(公告)日：2023-06-29

申请号：US18179303

申请日：2023-03-06

Applicant: MARKFORGED, INC.

Inventor： Christopher Hoffman ,  Bennett McClelland Wilson ,  Angus MacMullen ,  Yongguan Lu ,  Corey Hazeltine Walsh ,  Vinay Francis Rodrigues ,  Michael Imburgia ,  Johan Ospina ,  Casey Johnson ,  Maxim Seleznev ,  Benjamin Honsdon Gallup

IPC: B29C64/141

CPC classification number: B29C64/141 ,  B33Y10/00

Abstract: Systems and methods of additively manufacturing leak resistant objects are disclosed. Provided herein are methods of forming objects having walls and/or surfaces that are resistant to leaks. Objects disclosed are formed from or manufactured from compositions, including metals, polymers, and combinations thereof. Objects provided herein are made from methods of forming individual shells, forming of series shells, and layer-by-layer forming of objects. Further disclosed are methods of interconnecting shells, layers, and processes for transitioning therebetween the shells and layers.