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Technical Discussions
Wolfgang Bisle
R & D, senior Engineer and nomiated Expert
retired from Airbus Deutschland GmbH, Germany, Joined Jul 2000, 37

Wolfgang Bisle

R & D, senior Engineer and nomiated Expert
retired from Airbus Deutschland GmbH,
Germany,
Joined Jul 2000
37
00:38 Aug-15-2006
Thciknesstesting of Paint on CFRP or Plastic

We are just screening the latest possibilities to do thickness measurement of paint on a plastic substrate.
Means: we need to get a good idea of the thickness of all layers of decorative paint, surface protection, etc on a very low conductive or isolating fibre reinforced plastics e.g. CFRP, GFRP, and so on. But main focus on CFRP.
Wew know there are some UT instruments on the market which claim to be designed to match these material compositions: but having sometimes more then 10 different layers on top of the substrate - you can imagine the impedance difference between substrate and the coatings is not significant and multiple echoes out of each layers interfere...e.g. 30 ... 200 MHz UT does not promize really a solution...
We know about some other techniques and methods.
But up to now we see a need for much better performance.
So it is a tricky task and I would like to now about new commercial ideas (Not academic ideas, as there is now guaratee that they could ever become reality)
But: It should be NDT , not anything like Paint Borer, Paint Inspection Gauge or comparable.


 
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