Macroblock manufacturing by 'hip assisted brazing' method

The aim of this work was to demonstrate the potential of an original technology which allows the manufacturing of large size so-called carbon fibre composite 'macroblock' tube-in-tile components associated with a reliability for a future industrial production. This process includes the combinations of two techniques: (a) a hot isostatic pressing cycle to allow intimate contact of a copper tube with a CFC block during all the process; (b) a brazing operation during the HIP cycle to perform a good joint between both substrates. Finally, two prototypes have been realized and a non destructive evaluation of the quality of the joint has been carried out. (orig.)