Complete measurements of turbine blades with the CORE

The measurement of turbine blades pushes many a coordinate measuring machine to its limits. Not so with the CORE product range from WENZEL. With the CORE product range, the most diverse aspects of a turbine blade have been taken into account in order to meet all the requirements of the geometric measuring system with one machine. Whether you need to measure the root of the fir tree or the leading and trailing edges, with the CORE you have made the right choice.

While the known tactile systems quickly reach their limits, as they are limited by the diameter of the probe ball, for example, the optical sensor of the CORE can be used to detect and measure these.

Yes, optics also has certain disadvantages, but these have been largely eliminated through the use of modern technologies, for example, there is no need to pre-treat the components by spraying them with chalk spray, which leads to greater measuring accuracy as no material is applied. Where tactile spheres cause a filter effect due to their size, the optics can measure points and even the smallest radii with a light spot of 40 µm. Where tactile measurement is nevertheless essential, the hybrid sensor WM | HS from WENZEL is used, which combines the optical and tactile advantages without any great loss of time.

Measurement of reflective surfaces

The unique white light sensor of the CORE from WENZEL is operated using a specially developed process that even enables the measurement of highly reflective surfaces. This method minimizes the reflections caused by the opposing edges. The real light spot can therefore be measured stably. With other optical measurement methods, this effect can lead to incorrect measurements.

Point detection in areas that are visually difficult to access

The optical accessibility of the fir tree feet and the small radii on the blade often pose a problem. The individual flanks cause shadowing, which means that the foot can only be fully recorded if a special measurement strategy is used. When measuring with the CORE , the profile is scanned twice, each time with a different direction. The two scans are then combined. This makes it possible to optically capture hard-to-reach areas and the smallest radii with a high point density.

The CORE product range from WENZEL is an excellent system that enables the quality of a component to be measured directly during production. This is underlined by a stable and reliably reproducible measurement on a wide variety of surfaces.

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