Additive manufacturing by laser stereolithography
3DCERAM leverages a unique technology that makes it possible to manufacture ceramic components by 3D printing.
The upstream work on laser stereolithography developed by Thierry Chartier, director of the Science of Ceramic Processes and Surface Treatments (SPCTS) in Limoges, have contributed decisively to the development of the additive manufacturing technology for ceramic parts that 3DCERAM has transformed into production technology.
This technology enables to produce ceramic components by successive layers using a laser which polymerizes a paste composed of photosensitive resin and ceramic. The parts are then subjected to a heat treatment (debinding followed by sintering) which eliminates the resin and densifies the ceramic.
A process that links 3D printing and traditional thermal processing.
Step 1 : preparation of the CAD file, anamorphosis to anticipate the shrinkage and creation of the supports.
Step 2: preparation of the printing tank, slicing of parts for additive manufacturing.
Step 3: 3D printing, additive manufacturing, layer after layer.
Step 4: cleaning of green parts, manually or with a semi-automated cleaning station.
Step 5: debinding and sintering of parts. These operations eliminate the resin and densify the ceramic to give it all its properties.
Step 6: quality control.
Step 7: cleaning and manual or automated finishing: machining, polishing...