Univalor, Montréal, QC, CA
Our method enables the fabrication of dense metallic structures, such as fully-filled, porous, interlocked and overhung structures. The technology presented here is based on a specific technique called solvent-cast 3D printing where the ink is a polymer or a polymer-based composite dissolved in a solvent that later evaporates during the printing process. We have developed a process based on composite mixing of nanoparticles in a host polymer suitable for 3D printing. Thus, we are able to produce various types of inks suitable for 3D printing and with excellent mechanical properties. Here, a mixture of polylactic acid (PLA) and metal powders (steel, steel / copper, titanium etc.) dissolved in dichloromethane is placed in a ball mill in order to reduce the particle size and increase the viscosity. The mixture is then printed at room temperature in the desired form. The parts undergo additional treatments in order to strengthen its mechanical properties. This process allows a highly concentrated metallic material while requiring simple and accessible equipment.
Primary Application Area: Materials, Chemical
Technology Development Status: Prototype
Technology Readiness Level: TRL 4
Organization Type: Academic/Gov Lab
Showcase Booth #: 524
GOVT/EXTERNAL FUNDING SOURCES