What is the working principle of metal 3D printer?

Working principle of metal 3Duv printer;

1, metal 3Duv printer is essentially a piezoelectric inkjet printing device;

2.uv ink itself can react with ultraviolet rays in sunlight, leading to curing. Therefore, in the process of storage and transportation, it is necessary to use black bottles to avoid contact with sunlight;

3. The ultraviolet wave emitted by the 3.led cold light source lamp reacts with the photosensitive curing agent in the uv ink, so that the pigment molecules in the uv ink are cured on the surface of the material.