15 October 2006
15 October 2006
Naba Tailored Composite Solutions has filed an International Patent Application for a novel method for producing complex geometry ceramic matrix composite components.
Using commercially available ceramic forming resin systems and a closed mould technique for cure and pyrolysis, Naba say that the method allows for parts with complex geometry. Naba’s technique involves retaining the component integrity inside a tool during the pyrolysis cycle, thereby reducing material costs and expensive machining operations on the finished ceramic body. For the engine valve illustrated only a finish grind machining was required, just as for its metallic counterpart.
Richard McAinsh, Technical Head of Naba TCS said, “The application of composites for light weight vehicle structures and crash energy management is obvious to anybody with a passing interest in modern motor-sport. Apart from these areas much work was going on to introduce advanced composites in the more challenging environments within the engine and gearbox. This latest patent application represents the next step in Naba TCS’s policy of bringing composite engineering technology developed in F1, to a wider market.“
An immediate goal for Naba TCS is to apply the underlying technology of this patent to defence systems. “There is an urgent need to help military and law enforcement personnel be more efficient – reducing the weight of their equipment is one way to achieve this goal. The high temperatures, pressures and gas flow rates in a modern racing engine at 20,000rpm are not so dissimilar to the conditions inside the barrel of a gun when it is fired. The materials being developed within F1 and subsequently banned are lighter, more heat tolerant and harder wearing than most metals,” he continued.
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