Three-dimensional printing system
A three-dimensional printing system having a light beam radiating unit is provided, which radiates a light beam onto the powder layer to be sintered or melted, solidifying the powder, a scanning mechanism which redirects and focuses the light beam in a three-dimensional space, a cover that moves integrally with the scanning unit of the light beam, wherein an inlet nozzle and an exhaust manifold ensure inert atmosphere to the process, a powder delivery unit that supplies this material over the object construction area; a powder leveling device leveling the powder delivered from the powder delivery unit to form a powder layer, a powder supply unit for storing and metering material for the delivery unit, constituting a module independent from the system.
1. Three-dimensional printing system comprising
a light beam radiating unit,
a scanning mechanism which redirects and focuses the light beam in a three-dimensional space,
a cover that moves integrally with said scanning unit of the light beam and involves a space above an area of a powder layer that is smaller than an object construction area, surrounding a light beam radiating zone, wherein an inlet nozzle and an exhaust manifold are installed,
a powder delivery unit that supplies powder over the object construction area,
a powder leveling device, wherein the powder delivery unit and the powder leveling device move independently of the light beam radiating unit,
a powder supply unit responsible for storing and metering material for the powder delivery unit, and
an interchangeable modular system consisting of a powder storage structure, a motorized delivering member, a motorized metering member, and a chassis.
2. Three-dimensional printing system according to claim 1 , further comprising an object construction area that moves in the X, Y, and Z directions.
3. Three-dimensional printing system according to claim 1 , further comprising a scraper gantry with movement independent from that of the object construction area.
4. Three-dimensional printing system according to claim 1 , further comprising a focusing unit.
5. Three-dimensional printing system according to claim 1 , wherein the light beam radiating unit is a fiber laser.
6. Three-dimensional printing system according to claim 1 , wherein the light beam radiating unit is a diode laser.
7. Three-dimensional printing system according to claim 1 , wherein the scanning mechanism comprises a galvanometer.
8. Three-dimensional printing system according to claim 1 , further comprising at least one oxygen sensor.