SUPPLY SIDE OGP UK OPEN HOUSE
Fusion 350 – OGP’s most advanced, versatile and capable multisensor
system ever when it comes to the accurate, non-contact
measurement of even the most demanding components (OGP is a
division of QVI, incidentally). This entry-level Fusion machine has a
100 mm fi eld of view video camera that allows for the rapid and
accurate capture of data. Zone3 CAD-based metrology software is the
partner working in support of that speed and accuracy. Fusion 350 also
employs probes and has an off-axis Digital Range Sensor (DRS) laser.
“Nobody else in the market has such a large fi eld of view, combined
with 3D sensors and high accuracy,” QVI’s Finn asserts
FlexPoint 7 Series – With some 450 multi-sensor
measurement machines in the fi eld, Graham Shaw, OGP UK’s
sales manager, says that a limitation on application is sometimes
the Z-axis height. Previously restricted to 400 mm, the CMM-like
FlexPoint raises this to 600 mm, with 700 m in X and Y directions.
But the key difference is the articulating multi-sensor head with
scanning or touch-probe, optical and interferometric laser capability,
plus seamless measurement between all three modes – something
the machine’s makers believe to be a unique combination. Zone3
software is also an important part of being able to deliver such a
machine, it was said. Stand-off for the video camera is 70 mm, for the
laser its 24 mm, but the company is working on one of 60-70 mm.
In terms of accuracy, it is a medium-grade CMM, offering 3.1 +
3L/1,000 mm for length measurement for Renishaw TP20/200
touch-probes and 2.4 + 3L/1,000 mm for Renishaw scanning probe
SP25. But calibrating this machine to UKAS standards is a current
challenge, Shaw says, with OGP having some work to do on that
score. It should be noted that OGP’s video optics’ accuracy is around
3 micron, which compares with the 10 microns of others in the
market, it is underlined. The largest FlexPoint model in the range,
12 Series, has a 3,000, 1,200 by 1,000 mm envelope
This SmartScope Vantage
450 has had its Z-axis extended
so that a fourth-/fi fth-axis unit can be
fi tted, allowing here the video camera-based measurement
of turbine blade cooling hole position and shape,
complemented by Zone3 metrology and QC-Calc software.
(Vantage 650 machines can also be so modifi ed.) Accuracy
better than 20 microns, and even better than 10 microns
with properly set rotary axes, is quoted by OGP UK’s Shaw.
The cooling hole positions are video camera measured with
respect to a blade datum established using a touch-probe.
And the shape of the cooling holes is captured using an
interferometric laser head
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All images: Andrew Allcock