3D Scanner Measures Small Parts With Complex Shapes

The new ATOS 5 for Airfoil expands the ATOS 5 series for the measuring of small and complex parts. While the all-rounder ATOS 5 scanning sensor successfully performs a wide range of measuring tasks in measuring areas from 170 mm to 1,000 mm in length, the ATOS 5X is particularly effective when used for large surfaces and parts due to its strong, focused light. It fully demonstrates its superiority, for example, in the automotive industry, where even entire car bodies can be digitized quickly.

Both, the turbine blades rotating in turbines and the air-conducting rigid structures, are exposed to enormous forces and are therefore vulnerable to wear. Only if they work optimally in terms of flow properties, the performance of the jet engine or the achieved electricity yield is stable. For this purpose, the tight manufacturing tolerances must be monitored and maintained during production, maintenance and repair.

High-Precision Down To The Smallest Detail – At The Usual Speed

With the introduction of a 3D measuring machine particularly designed for small parts with a size of 100 x 70 mm2 to 400 x 300 mm2, GOM closes the gap for smaller measuring volumes. At the same time, the ATOS 5 for Airfoil is particularly well-suited for the inspection of turbine components produced for the aerospace industry, such as blades, blisks and air-conducting structures. Their complex-shaped edges and surfaces have been a challenge during 3D digitization until now. The ATOS 5 for Airfoil sensor also excels during maintenance and repair of turbine guide vanes. The expenses for a new blade that has to be replaced due to defects exceed 10,000 EURO. If the defects on the part can be corrected by digital surface reconstruction and reverse engineering, e.g. in metal 3D printing, considerable savings can be achieved.

Along with the introduction of ATOS 5 for Airfoil, GOM offers a corresponding software update. The 2019 releases of ATOS Professional and GOM Inspect Professional feature new modules that make it much easier to analyze demanding edge geometries.

All ATOS 5 scanners excel by their high digitizing speed and high-precision measuring data. A scan in one measuring position takes only 0.2 seconds. A total of 120 images per second can be triggered. The sensor transmits the data via fiber optic cable. This means, that a turbine blade is completely digitized in 3 minutes, a complete blisk in about an hour. The resulting point cloud can directly be compared in the GOM software using a surface comparison with the CAD model or data from previous measurements. Within minimum time, an easily understandable overview of the dimensional accuracy of the just produced, maintained or repaired part is created. Due to their robust design with protected optics, encapsulated electronics and a self-monitoring sensor, the measuring systems are also ideal for use in harsh industrial environments.

All sensors of the ATOS product range operate according to the Triple Scan Principle. They project precise fringe patterns onto the surface of an object which are recorded by two cameras based on the stereo camera principle. As the beam paths of both cameras and the projector are calibrated in advance, 3D surface points from three different ray intersections can be computed. The result, even with reflective surfaces and complex-shaped objects with complicated undercuts, is a mesh of complete measuring data without holes or faulty points. Since the sensors work with narrow-band blue light, interfering ambient light can be filtered during image acquisition.

For more information: www.gom.com

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