Sand moulds and precision investment castings from the 3D printer
innoCast uses various rapid prototyping methods. Either sand moulds or precision investment castings made of PMMA (thermoplastic) are printed directly from 3D data. Modern Voxeljet 3D printers are used, which are mainly used for the tool-free and fully automatic production of high-quality models and printed cores. The machines achieve a very high accuracy at an equally high construction speed.
3D precision investment castings are used as a lost model to build the ceramic shells used in investment casting. These are built up by the 3D printer in layers. For sand casting, the moulds and cores for the moulding boxes are created in a 3D printer.
In both precision and sand casting, the production time is greatly reduced by the tool-free process, as process steps such as tool manufacture are no longer necessary. Depending on the complexity, we achieve a throughput time of approx. 10 days up to the unfinished casting and approx. 15 working days with finishing.