Application Center for CT in Metrology (CTMT) in Deggendorf

• Development of industrial CT as a universal digitalization tool in the product life cycle
• Data management: processing and analysis of large quantities of data
• Automation of measurement processes and integration into production processes
• Virtual testing of components and development of digital prototypes using CT data and FE simulations
• Provision of vocational training for future engineers at the DIT through lectures, internships and dissertation projects

• Test process suitability: Using the VDA 5 guideline, it is possible to assess the suitability of a CT system as a measuring system and for the entire test process. Different components and influencing variables affect the calculated expanded uncertainty of the tomograph and it is important to identify these and assign uncertainty values to them. This makes it possible to state the probability that the true value of a measurand y lies within the interval ±u of the measurement result Y.
• Accuracy of CT measurements: To increase the accuracy of CT measurements, influencing factors affecting the measurement result are systematically investigated. Based on the results of these investigations, guidelines for more accurate measurements can be created. In addition, methods to automate the CT process are being developed, which should improve repeatability.
• CT process speed and component optimization: To save costs and for quality reasons, it is extremely important to automate the entire measurement process. A robot was therefore used for the unmanned loading of the computed tomography system. Ongoing research projects are working to develop an automation solution for all process steps — loading, CT scan, data analysis and preparation of final test reports. In the future, this will all be possible with just the click of a mouse.
• Minimization of operator influence on CT measurements: CT operators have a major impact on CT measurement results. The selection of machine parameters and position of the workpieces in the CT system are just two examples of factors that can significantly influence the measurement result. Using software- and hardware-based methods, the CTMT is trying to minimize this user influence.
• In-situ CT — measurement technology for loaded components: Thanks to dimensional metrology and material testing using nondestructive in-situ computed tomography, various types of samples and test objects can be assessed under the application of force to check for deformation and cracking. The results of tensile and compression tests are also compared with simulations of strength to identify any deviations. The aim is to use the in-situ CT system to improve simulation models with a view to producing a better representation of the real situation. This makes nondestructive component testing and simulation validation possible.
• Process and component optimization using computed tomography: Complex prototypes can be easily analyzed in the development phase with the aid of computed tomography. Simulation models are then adjusted based on these results. The targeted use of computed tomography in the manufacturing process means that any geometric deviations can be detected at an early stage, enabling tool corrections to be performed. This saves both time and money.

• Research in the field of CT measurement technology
• Feasibility studies and consultation
• Innovative measurement services

Tomoscope HV 500 — Werth | 225 kV microfocus

• Dimensional metrology (MPEE3: [4.5 + L/75] μm) and defect analysis of components with edge lengths up to 500 mm
• With loading robot for fully automated series measurements

InlineCT — HEITEC PTS/Fraunhofer | 450 kV macrofocus

• Automatable CT system for fast, inline series measurements
• Also suitable for larger, metallic components and metrological applications

Tomolibri — Zeiss/Fraunhofer | 300 kV microfocus — 3K detector

• With walk-in radiation protection cabin and integrated system for condition monitoring
• High-resolution metrology and defect analysis also available for larger, metallic components
• Photogrammetry — set-up for data fusion of optical images and CT data

Modular sub-micro CT System by Fraunhofer | 150 kV microfocus

• For measuring microstructures (resolution up to 0.3 µm/voxel)

ValuCT — VJ Technologies/Fraunhofer | 160 kV mini-focus

• Simple operation with full range of functions
• For teaching and demonstration purposes at the DIT

RoboterCT — Streicher/Fraunhofer | 225 kV variofocus (from Q4/2019)

• Novel, flexible multimodal measuring system for detecting small areas on large test objects up to the size of a car
• Intelligent trajectories to increase image quality

VG Studio MAX

• Visualization and processing of CT data
• Dimensional metrology, wall thickness analysis, material testing (blowholes), material analysis

Avizo for Material Science

• Complex segmentation of multi-material components
• Fiber analysis

Simpleware

• Intelligent mesh generation for the use of CT data in FE simulations

WinWerth

• Automated metrological evaluations in 2D/3D

Geomagic Studio

• Reverse engineering
• STL data processing

Geomagic Qualify

• Metrological evaluations

ANSYS

• FE simulation environment for system optimization and virtual testing

ZEISS Reverse Engineering

• Reverse engineering applications

ISG Virtuos

• Development of digital images of real systems for virtual commissioning