Operating Manual

length variance is ≤6 µm.
Parameter
Ø Z 1 [mm]
Distance A 1 [mm]
Target CAD
28.000
70.500
Tolerance
0.050
0.100
Actual CT
28.035
70.442
Actual CMM
28.034
70.447
CT/CMM variance
0.001
-0.005
Table 1: Excellent correspondence between the measurement data from the 3D coordinate measuring machine
and high-resolution computed tomography
8. Conclusion: How Advances in CT Systems are Benefiting Foundries
A new tomograph from the GE’s phoenix|x-ray business which has recently been placed on the
market and which features a revolutionary unipolar 300 kV/500 W microfocus x-ray tube is
enabling CT analyses of difficult-to-penetrate components at particularly high levels of
magnification (fig. 5). It is the first time that a resolution of up to 1 µm has been achieved with
a 300 kV X-ray tube. The CT system also uses a new high dynamic temperature-stabilized
digital detector with even higher contrast resolution. As a result of recent hardware and
software developments, the phoenix v|tome|x m (fig. 6) offers effective CT results in a very
short time.
The user-friendly and highly efficient phoenix|x-ray CT software datos|x 2.0 includes a wide
variety of modules for optimizing CT results for superior precision and quality. Additionally,
the new bhc|module corrects beam hardening automatically. This compensation for
undesirable artifacts significantly increases the precision of pore analyses or surface extraction
for subsequent dimensional measurements. The click & measure|CT functionality offers a
significant reduction of the required operator time. Hardware innovations are also ensuring
more precise measurement results.
The phoenix v|tome|x m can be used for full, high-resolution 3D scanning of samples, making
it ideal for non-destructive quality control in foundries. The system also has a special
metrology package that contains everything needed for precise and intuitive 3D metrology,
from calibration instruments to a high accuracy direct measuring system. In many cases, Ct
offers considerable advantages compared to conventional coordinate measuring machines,
especially, when measuring complex parts or hidden or difficult-to-access surfaces, such as
high density of measurement points and fast capturing even of the complete internal geometry
of the work piece. Fully automated click & measure|CT allows the entire CT process to be
fully automated minimizing the operator time and influence while highly increasing the
repeatability and reproducibility of the CT results.
Fig. 6: Due to its unipolar microfocus X-ray tube, the phoenix|x-ray v|tome|x m CT system is particularly suited
to high-resolution scans of highly radiation-absorbent components at particularly high levels of magnification.