3D printing technology for the fabrication of micro target components

Threecommercial 3-dimension printers were used to fabricate micro target components with metal and resin materials. A titanium metal target frame was fabricated by EOSINT M290 3D printer by the means of Laser Sintering. Resin target frames,microcavityand cylinder were fabricated by Object 30 Pro 3D printer throughPolyjetmeans using polypropylene resin as printing material. The surface ofmicrocavity, cylinder and slice designed with periodic pattern were fabricated by Freeform Pico 3D printer through the means of stereo lithography apparatus applying wax resin as printing material. The size and surface morphology of samples were characterized by optical microscope and laser scanningconfocalmicroscope. The results show that the line roughness of titanium metal target frame is 7.3-17.79mand it decreased to 0.87-1.66mafter polishing. The root mean square roughness (RMS) of resin frame is 2.88m. The RMS of the end surface ofmicrocavityand cylinder is 2.03m; the deviation between measured value and designed value of streak pattern period on themicrocavityand cylinder side is 1.40% and that of amplitude is 55.50%. The RMS of slice component is 4.87m, the deviation of modulation pattern period is 0.80% and that of the amplitude is 3.60%. Application of commercial 3D printer to fabricate micro target components, with high efficiency and low cost provides a new approach for the manufacturing of target components used in inertial confinement fusion experiment.