Optimization of the laser radiation action for SLM-formation of the WC-Ni coating

The paper study are the conditions of formation of metal-ceramic tracks regarding the parameters of the laser action. Optimization of laser action on the powder mixture was carried out. The mechanical properties of laser tracks have been studied. It is demonstrated that both the ceramic particle size and concentration vary at different focusing modes. It is found that the clad metal-ceramic structure has 4 – 5 times higher microhardness – 854 HV0.1 as compared to the substrate 178 HV0.1.