Mechanical properties and optimization of AlNiCo magnetic materials fabricated by selective laser melting

In this paper, we use selective laser melting (SLM) technology to fabricate AlNiCo magnetic materials, and the effects of laser processing parameters on the compression properties, hardness and microstructure of AlNiCo magnetic materials were studied. The influence of laser power on the mechanical properties of samples far exceeds the scanning speed. Through the experiment, we obtained the optimal range of process parameters: laser power (150 ~ 170W) and laser scanning speed (800 ~ 1000mm/s). Although the samples formed within this range have good mechanical properties and finer grains, there are still many cracks, further research work should be done.