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Title: Additive manufacturing with integrated microliter resin delivery

Patent ·
OSTI ID:1493318

An additive manufacturing system utilizing an oxygen-permeable membrane to facilitate low-volume printing and high-speed resin change in a stereolithography-based 3D printer. The membrane is used to constrain the fluid surface at the focal plane of the stereolithography printer and a carrier fluid is used to hold the fluid against the membrane. The small amount of resin is quickly switched using integrated microfluidic channels.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
10,118,338
Application Number:
14/919,441
OSTI ID:
1493318
Resource Relation:
Patent File Date: 2015 Oct 21
Country of Publication:
United States
Language:
English

References (12)

Apparatus for production of three-dimensional objects by stereolithography patent March 1986
Stereolithographic method and apparatus in which a membrane separates phases patent April 1991
Production of objects patent June 1992
Method for fabricating an integral three-dimensional object from layers of a photoformable composition patent June 1992
Method for production of three-dimensional objects by stereolithography patent December 1992
Method and apparatus for cleaning stereolithographically produced objects patent September 1993
Apparatus and related method for forming a substantially flat stereolithographic working surface patent September 1995
Use of a support liquid to manufacture three-dimensional objects patent November 1996
Solid imaging apparatus and method with coating station patent May 1997
Method and system for production of fibrous composite prototypes using acoustic manipulation in stereolithography patent September 2004
Rapid-prototyping method and apparatus patent January 2005
Multi-material stereolithography patent July 2009

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