Superabrasive composite materials are used for grinding tools since the beginning of the 20^th century. Sintering and brazing are the key manufacturing technologies used in production. But restricted geometry-flexibility, absence of repair possibilities for damaged tool surfaces as well as difficulties in controlling materials interfaces are main weaknesses of these production processes. Thermal spraying offers the possibility to avoid these restrictions.
In this research work a fabrication method based on detonation-flamespraying-technology has been investigated to bond large superabrasive particles (~ 350 µm, needed for grinding minerals and stones) in a metallic matrix.
Layer morphology and bounding quality are evaluated with respect to superabrasive material, geometry, spraying- and powder-injection-parameters. Influence of process temperature and possibilities of thermal pre- and post-treatment of MMC-layer are analysed.