Apparatuses, systems and methods for three-dimensional printing

摘要

The present disclosure provides three-dimensional (3D) objects, 3D printing processes, as well as methods, apparatuses and systems for the production of a 3D object. Methods, apparatuses and systems of the present disclosure may reduce or eliminate the need for auxiliary supports. The present disclosure provides three dimensional (3D) objects printed utilizing the printing processes, methods, apparatuses and systems described herein.

主权项

1. A method for generating a three-dimensional object, comprising:
(a) providing a powder bed comprising an exposed surface in an enclosure, wherein the powder bed comprises powder material; (b) using an energy beam to transform at least a portion of the powder material into a transformed material that subsequently forms a hardened material, wherein the hardened material (i) is at least a portion of the three-dimensional object, (ii) protrudes from the exposed surface of the powder bed, and (iii) is movable within the powder bed; and (c) dispensing a layer of the powder material on the exposed surface of the powder bed such that the hardened material is displaced by about 300 micrometers or less, wherein upon dispensing the layer of the powder material, the exposed surface of the powder bed is substantially planar.