Lockheed Martin’s Skunk Works, which develops prototype and limited production aircraft, has saved time and money by eliminating a lenghty step in a manual mould making method.
The company’s problem was with the SL (stereolithography) resin it was using. Its ideal production scenario was to make the moulds directly using stereolithography, but it could not find a resin that was able to withstand the 250 degrees C temperture required by the hot melt process. Ciba Speciality Chemicals solved the problem with a new SL resin – Cibatool SL 5530HT – which is designed to resist very high temperatures for functional testing under real world conditions. It also provides optical clarity for flow visualisation, and accuracy that allows production of prototypes which mirror the dimensions of the final part.
Ciba Tel: 01223 832121