Here is a list and brief description of some of the services that we offer.

Tool Certification:

The first step is to measure the datums located on the tool base. Since the position of these datums is known in car-line coordinate system the laser tracker operator is able to perform a coordinate system transformation allowing the laser tracker to measure in car-line coordinate system.

The next exercise is to measure pass points on the tool in car-line. These will now become the primary tool datums in reference to those located on the tool base. Approximately eight pass points are spread evenly throughout the whole volume of the tool. Number of pass points will change from tool to tool depending on size of tool and other factors.

Once the pass points are measured every net surface and locating pin on each unit is measured and adjusted to meet the design specification.

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Line Assembly:

Once the whole assembly has been certified and tested at the build source it is dismantled piece by piece and transported to the customer's factory for final assembly, verification and commissioning.

On arrival each tool is positioned into its respective position in the assembly line. Level datums are established at each end of the production line that the laser tracker is able to use to generate an extremely accurate gravity coordinate system to which all bases are leveled.

Piano wires are used to roughly align all the tools. Final Alignment and Spacing of the tools is performed using a laser tracker.

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Tool Verification:

Once the tool has been leveled and is situated in its final position the first step is to measure all the pass points using the laser tracker. Pass points are now the primary tool datums. A bestfit coordinate transformation is then performed and its results scrutinized. These results tell the operator a great deal about the dimensional integrity of the tool.

If the bundle results fall within the specified tolerance the tool's dimensional integrity is considered sound enough to warrant only a verification.

Verification involves checking all location pins and 10% of the net surfaces. If these fall within tolerance the tool is considered verified.

If however the bundle results fall outside tolerance, and any spurious points have been checked and re-measured, a re-certification is performed. Re-certification is required because either damage or flexure has compromised the overall geometry of the tool.

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Re-Certification:

Re-Certification, as its name suggests, involves a repeat of the activities previously performed during original certification at the build site, i.e. 100% inspection of all features and adjustments to within tolerance.

All the tools that form the line undergo the process described above before the production line is ready for testing and final commissioning.

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Repeat & Reproducibility:

At times it is necessary to perform repeatability and reproducibity studies on tooling. A typical example is to locate and clamp a panel into its position on the tooling, then unclamp and remove the panel. The panel is then relocated and clamped for the second time. If the tooling is well designed and manufactured, the panel should locate back into the same position to within an acceptable margin. Repeatability and reproducibility are attributes that are obviously essential for mass production tooling.

Laser trackers are used to great effect for these types of measurements, which often run up to 30 relocation cycles.

Reflectors are temporarily bonded to the panel with a hot glue gun. The reflector positions are evenly spread over the panel surface. Normally close to net surfaces and locating pins. A laser tracker with an Absolute Distance Meter (ADM) is required for this measurement exercise.

Each reflector is then measured with the laser tracker. The coordinates from the first measurement cycle become the reference coordinates for all other measurement cycles. The panel is then unclamped and removed from the tooling, then repositioned and re-clamped for the second time. For the second and all subsequent cycles the auto-inspect software routine is employed. The auto-inspect function drives the laser beam to each reference coordinate position in-turn and then measures the actual new position of the reflector giving its deviations.

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