DAS300 Drill Alignment Systems

 

DAS Overview Data Sheet

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DAS PVP Portable Vacuum Pump Data Sheet

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DAS335-SP Data Sheet

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DAS335 3 pad Data Sheet

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DAS335 4 pad Data Sheet

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One of the most time consuming activities in aerostructure manufacture and repair is the location of buried fastener holes and the subsequent alignment and drilling of the corresponding hole in the aircraft skin.

Traditional this has been achieved by back drilling a pilot hole and then redrilling through the top surface. This approach is both time consuming and inaccurate especially where either space is restricted or where the distance between the surface and the pilot hole is large, a particular problem in carbon structures.

 

The Hole Finder consumes a meagre 400mW of power and consequently will run continuously for 10hrs from a single 2hr charge of its internal batteries.

 

Finding a buried pilot hole centre to within 0.5mm is the accepted norm for aerostructure production and an accuracy of 0.1mm is required for certain MRO activities.

 

Following on from our work of 2001 for the Eurofighter project we where able to utilise the same sensor technology and analysis techniques to develop the smallest and most accurate hole finder / drill position system currently available.

Our innovative non hall effect detection system eliminates the frequent calibration requirements of that technology. Our solution is a robust self contained portable, battery operated unit that utilises a variety of fixing methods, the simplest form use cam operated suction pads to fix the unit to the structure, through to vacuum actuated suction pads where the hole finder is used on a porous surface.

 

The unit is very simple to operate with four multicoloured direction indicators. Accurate positioning is achieved with the use of vertical and horizontal vernier controls. Uniquely the AAI Hole Finder has a High Precision mode which will allow deep hole positioning far exceeding any other devices on the market.