Extended CT Scanner Can Handle Taller Workpieces

Zeiss offers two computed tomography (CT) scanners: the Zeis Metrotom 800, with an extended performance spectrum, and the Zeiss Metrotom 1500. For the Metrotom 800, users can choose between models with a tube voltage of 225 or 130 kV. The significant increase in power from 39 to 500 watts on the 225-kV version offers several advantages. The machine can scan metal components along with mixed materials, such as hybrid workpieces, without any difficulty, the company says. As a result of enhanced performance, the machine scans components significantly faster than the 130-kV version.

With the 225-kV Metrotom 1500, operators can receive information about the entire component. Unlike its predecessor, this model is designed to scan larger components with a new measuring Z axis. The maximum height of the components has been raised from 300 mm to 700 mm. The workpiece can now be raised and lowered by 400 mm instead of 150 mm. In addition, multiple scans can be merged into one volume model. Workpieces such as steering columns and other larger castings can now be tested non-invasively. This is an important requirement for shortening the time needed for initial sampling and accelerating process optimization during production ramp-ups, the company says.

The corresponding visualization and evaluation software provides 3D visualizations and section views based on the voxel data generated by the Metrotom OS. In addition to visualizations, the program also provides information on the shape, size and position of characteristics such as discontinuities and inclusions.

The machines feature a complete enclosure to protect the operator from X rays, but the interior can be viewed by standing in front of the CT scanner or at a different workstation. For this reason, every machine is equipped with a camera and monitor. The image from the camera can be displayed on the reconstruction computer to set up the measurement. When preparing the measurement at the workstation, the operator can ensure that there will not be a collision between the component and the detector or tube. The camera image can also be viewed on different computers outside of the measuring lab.