Turbine Blade Casting Inspection
Aerospace and aviation manufacturers that make airfoils and turbine blade castings utilize the investment casting process. These castings have complex spaces and passages that require internal visual inspection to check for cracks, porosity, burrs, and other defects. InterTest, Inc. offers a variety of remote visual inspection tools both with white and UV illumination that locate and document defects to comply with manufacturing quality assurance management systems.
Turbine blade castings are often nickel-based metal alloys like stainless steel made by the investment casting process. The investment casting process involves creating a wax prototype and then dipping it repeatedly into liquid ceramics. After the ceramic hardens, the wax is melted away leaving a ceramic mold for creating turbine blade castings. These high-precision components have complex internal cavities and passages which require remote visual inspection.
Common turbine casting components are combustors, annular combustors, air compressors, and fuel injectors to name a few. These parts are prime examples of utilizing investment casting methods because of their intricacies and complex geometries..
The interior features of turbine blade castings typically require remote visual inspection to ensure the quality of the cast part. Quality management systems (QMS) used by aerospace/aviation original equipment manufacturers (OEMs) require these manufactured components to be void of cracks, porosity, and metal burrs. Thorough visual evidence and documentation of these defects in nonconforming products are essential in any QMS, and InterTest, Inc. offers various inspection tools qualified for remote visual inspection of turbine blade castings.