Thursday 24 November 2011

Robotic Profiling is Literally Cutting Edge


When the first robotic leading edge profiling system we built for compressor blades starting officially cutting parts there was a lot of excitement from both our engineers and our customer.  Of course our engineers were high-fiving and twisting caps when they saw the fruits of their labor working and proof our adaptive robotic finishing was really coming of age. 
Adaptive Robotic Profiling System for
New Make Compressor Blades
Our customer seemed orders of magnitude more excited.  They discussed scaling up to cover their entire production within the next year....no problem.  We assumed their excitement was the usual facts: now they are automated they had saved considerable amounts of labor, raised the consistency of their product and they were able to relieve the stresses of scaling up.  Whenever they were gearing up to meet a new production part or working to increase capacity the skilled hands of the manual bencher for this operation was one of the difficult things to duplicate.

It took months after the system was installed until we started hearing the rumours of what the true game changing benefits were.  It was oblivious to us because of our lack of knowledge of the industry at the time and the driving forces behind the tight tolerances of leading edges.  The fact that this operation was previously only feasible manually left design engineers at the mercy of what a skilled hand could achieve.  Now that there was a robotic adaptive profiling system able to guarantee profile leading edge shape and angle meant that each part was manufactured with the correct design tolerances.  In the engine this leads to gains in increased compressor efficiency, reduced fuel consumption, extended on-wing times and reduced spare part costs.  Now we were starting to get a true feeling of our customer’s excitement.  Wow we thought looking at each other, we should have charged double!!

Now today as our engineers push forward evolving our adaptive finishing platform we find on the repair side the same excitement is present.  These benefits of adaptive robotic profiling translate very well as anyone who has familiarized themselves with Sermatech’s RD-305 or Lufthansa/University of Aachen’s ARP will attest.  The adaptive finishing goes up a notch in this scenario as well since we fool with adapting more parameters.  Each part is worn a different amount and to meet the flow conditions of the original blading  the design criteria now includes chord length, profile thickness and leading edge angle.  This keeps our engineers just as excited as our customer, which makes for a wonderful journey!

I’d love to hear of any other benefits or challenges that adaptive robotic finishing could bring to life!



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