Tag: turbine

Turbine blades have a complex geometry and contain many areas of double curvature during the Manufacturing of Turbine Blades. Therefore the blades have to be precisely manufactured by the precision casting process of investment casting, also known as the ‘lost wax process’. Ceramic cores for the cooling channels are positioned within a master mould pattern. Wax is then injected into the mould cavity to produce a preform of the turbine blade. Pinning wires are then pressed through the wax to butt against the ceramic cores within the preform. Next, the preform is coated with multiple layers of ceramic, ultimately forming a thick casing around the preform with the pinning wires embedded in it. The assembly is heated to melt out the wax and then tired to strengthen the ceramic. The result...