Thanks to wide-ranging knowledge of connection technology, composite solutions are employed in diverse areas, for example in
- textile technology (AFN PI nozzles)
- welding technology (water-cooled Cu electrode with welding centring pin)
- form dies (shrunk Si3N4 core)
- composite solutions with DOTHERM materials
Composite solutions for example permit separation of mechanical and thermal loads. Hence it makes no sense to make the entire knife out of ceramics, but only the blade, and to be precise, only the cutting edge.
By means of the connection technology the ceramics are positioned where they are needed. Fixation by clamping or bolting can then be carried out in metal. In very favourable cases the connection technology can even support the ceramics. Shrink fitting in shaping technology pretensions the ceramic core under pressure in such a way that the tensile stress arising as a result of thermal and mechanical loading under ideal circumstances is compensated by the core being pretensioned completely under pressure. In reality this cannot of course be implemented to 100%, which is in particular visible in stiffness cracks and edge fillets. FEM methods are used to calculate the remaining tensile stress and the results are drawn on to optimise the design in adv