Investment casting Process

First for each casting a wax part is required. These parts are glued together to form economically sense-making and technically feasible “cluster”.
The clusters made of wax are coated with a special ceramic mass and dipped into a liquid ceramic mixture
("called slip”) after which silica sand is used to sand them. This procedure is repeated 6 to 12 times.
After the ceramic shells have dried, the wax inside is removed by means of steam and pressure. Now the empty ceramic shells are burned at a heat of about 1100ºC.
The liquid alloy is cast into the still glowing ceramic shells. This procedure ensures both a good surface quality and excellent phasing out characteristics.
Finally the ceramic shells are being removed. The cluster is separated ant the parts are sawed, fettled and cleaned.