The X-Raybot from MRX is a mobile, robot-assisted X-ray diffractometer for measuring residual stresses in metallic components and load-bearing structures. The system can be used both in the laboratory and directly on site on large structures, making it ideal for application-oriented investigations in steel construction.
System Description
The X-Raybot combines a 6-axis UR5e robot arm (reach approx. 850 mm) with an XRD goniometer to perform fast and reproducible residual stress measurements on small specimens and large-scale structures. Robot-assisted adaptive positioning uses laser triangulation or laser scanning for automatic height and angle adjustment, enabling reliable access even to curved or hard-to-reach surfaces. A 1280-channel silicon detector (opening angle approx. 30°) and an air-cooled 30 kV / 1 mA X-ray tube (Cr/Mn/Cu) provide the basis for precise and efficient measurements. Safe operation is ensured by a laser safety perimeter that monitors the measurement area and shuts the system down if necessary.
Measurement Principle and Standards
Residual stresses are determined in accordance with DIN EN 15305 using the sin²ψ method. This well-established X-ray diffraction technique enables the quantitative determination of residual stress states in the near-surface region of components.
Unique Features
- Standard-compliant residual stress analysis in accordance with DIN EN 15305 (sin²ψ method)
- Robot-assisted, adaptive positioning with a 6-axis UR5e robot and laser triangulation / scanning
- High positioning accuracy on the order of 100 µm and up to ten times faster setup compared to conventional measurement configurations
- Automated mapping of horizontal component surfaces with graphical documentation and full traceability of measurement points
- Use of CAD models or externally scanned geometry data for planning multi-point measurements
Typical Applications in Steel Construction
- Welds and WAAM structures: In-situ mapping of residual stresses before and after process steps on complex and large geometries
- Fatigue tests: Monitoring stress distribution and stress relaxation under cyclic loading of large components
- Process optimization and quality assurance: Evaluation of the influence of heat treatment, machining, or surface finishing
Usage and Contact
The X-Raybot is available as a portable, robot-assisted XRD system for measurements in the laboratory as well as for in-situ investigations on site. A typical setup is on a heavy-duty table, but the system can be flexibly adapted to the respective test environment using a tripod.
Further deatils to the XRD device
Contact person
30167 Hannover
