2025年3月25日 · The use of hollow turbine blades in engines not only achieves lightweighting, but more importantly, provides internal cooling channels to prevent blade overheating. In the casting process of hollow blades, it is necessary to place the ceramic core at the center of the mold to achieve the formation of the cooling channel inside the blade.

2022年10月1日 · Alumina-based ceramic molds are extensively applied in investment casting processes of hollow turbine blade due to their outstanding high-temperature chemical stability and creep resistance. Herein, laser powder bed fusion (L-PBF) method was utilized to fabricate an alumina-based ceramic mold with integral core and shell (CMCS).

2025年3月1日 · In this study, a novel inverted configuration of SX hollow blade was proposed based on shell/core integral mold, resulting in a 55 mm reduction of platform height compared to the upright configuration.

2019年9月26日 · Currently, directional column- and single-crystal hollow turbine blades for aero engines use ceramic cores with high performance (e.g., silica, alumina). Because of their high chemical stability and good mechanical properties at high temperatures, alumina-based ceramic cores are commonly used in specific fields [1, 2, 3].

The research identifies the potential of 3D-printed blade core structures to reduce wind turbine blade cost and mass, limit resin uptake in the blade core, and eliminate core storage costs at the manufacturing site.

These ceramic cores are high pressure injected by forcing the ceramic mix into dedicated molds or dies. Development of such dies is an involved process by itself, addressing issues right from ceramic mix behavior to manufacturability of the injection mould.

The internally air cooled turbine cast blade is molded with a ceramic core for defining the interior cavity with coolant passages where the ceramic core is configured to fair radially...

The innovative wind blade mold will be used to build ten research wind blades. One blade will undergo structural testing at NREL’s National Wind Technology Center, while three rotors (nine blades) will be flown on test turbines at the Scaled Wind Farm Technology (SWiFT) facility at Texas Tech University.

Foundry cores are an essential part of the production of turbine blades for aviation, aero derivative and land based gas turbines. The internal cooling structure of the turbine blade facilitates a reduction in the substrate temperature, creating opportunities to lower fuel consumption, improve turbine efficiency and decrease engine emissions.

2024年6月15日 · Single-crystal turbine blades, manufactured via investment casting, are key components of high-performance aero engines and gas turbines. The final dimensions of the blades depend on the cumulative effect of heat shrinkage at different stages, including the superalloy, mold shell, and ceramic core, etc.