Additive manufacturing processes in which a computer-controlled laser-focusing system cures a liquid polymer containing a photosensitive curing agent; it begins with a platform that is just barely immersed in a vat filled with liquid photopolymer; each layer is formed by focusing the laser on a portion of the surface of the liquid; the portion touched by the laser hardens and a layer is completed, the platform is lowered sufficiently to cover the cured (hardened) polymer with another layer of liquid polymer and the sequence is repeated; once the part is completed, it is subjected to a final curing cycle in an oven
A) Stereolithography
B) Selective Laser Sintering
C) Fused Deposition Modeling
D) Electron Beam Melting