Back to results
US 10,286,603 B2Granted
Skillful three-dimensional printing
AssigneeVelo3D, Inc.
InventorsBenyamin Buller, Tasso Lappas, Erel Milshtein, Rueben Mendelsberg, Kimon Symeonidis, Alan Rick Lappen
Life of this patent
Estimating the term…
Abstract
The present disclosure various apparatuses, and systems for 3D printing. The present disclosure provides three-dimensional (3D) printing methods, apparatuses, software and systems for a step and repeat energy irradiation process; controlling material characteristics and/or deformation of the 3D object; reducing deformation in a printed 3D object; and planarizing a material bed.
Claims35
A method for printing a three-dimensional object, comprising:
- (a) providing a material bed comprising a pre-transformed material;
- (b) irradiating an exposed surface of the material bed at a first position using an energy beam during a first time period of at least one millisecond, to transform the pre-transformed material at the first position to a transformed material to form a first tile as part of the three-dimensional object, which first position is along a path-of-tiles, wherein during the first time period, the energy beam is stationary or substantially stationary such that it at most undergoes back and forth movement with respect to the first position on the exposed surface;
- (c) translating the energy beam to a second position of the exposed surface along the path-of-tiles, which second position is different from the first position, wherein the energy beam is translated during an intermission without transforming the pre-transformed material along the path-of-tiles, wherein during the intermission, the energy beam irradiates a portion of the material bed that is not along the path-of-tiles;
- and
- (d) irradiating the exposed surface of the material bed at the second position with the energy beam at the second position during a second time period of at least one millisecond, to transform the pre-transformed material at the second position to a transformed material to form a second tile as part of the three-dimensional object, wherein during the second time period, the energy beam is stationary or substantially stationary such that it at most undergoes back and forth movement with respect to the second position on the exposed surface.
2 more elements
A method for printing a three-dimensional object, comprising:
- (a) providing a material bed comprising a pre-transformed material;
- (b) irradiating an exposed surface of the material bed at a first position using an energy beam during a first time period, to transform the pre-transformed material at the first position to a transformed material to form a first tile as part of the three-dimensional object, which first position is along a path-of-tiles, which energy beam has a power density of at most 8000 Watts per millimeter squared, wherein during the first time period, the energy beam is stationary or substantially stationary such that it at most undergoes back and forth movement with respect to the first position on the exposed surface;
- (c) translating the energy beam to a second position of the exposed surface along the path-of-tiles, which second position is different from the first position, which energy beam is translated during an intermission without transforming the pre-transformed material along the path-of-tiles, wherein during the intermission, the energy beam irradiates a portion of the material bed that is not along the path-of-tiles;
- and
- (d) irradiating the exposed surface of the material bed at the second position with the energy beam at the second position during a second time period to transform the pre-transformed material at the second position to a transformed material to form a second tile as part of the three-dimensional object, wherein during the second time period, the energy beam is stationary or substantially stationary such that it at most undergoes back and forth movement with respect to the second position on the exposed surface,
- wherein the first time period and/or second time period is of at least one tenth (0.1) of a millisecond.
3 more elements
A method for printing a three-dimensional object, comprising:
- (a) providing a material bed comprising a pre-transformed material;
- (b) irradiating an exposed surface of the material bed at a first position using an energy beam during a first time period to transform the pre-transformed material at the first position to a transformed material to form a first tile as part of the three-dimensional object, which first position is along a path-of-tiles, wherein during the first time period, the energy beam is stationary or substantially stationary such that it at most undergoes back and forth movement with respect to the first position on the exposed surface, wherein the energy beam is defocused;
- (c) translating the energy beam to a second position of the exposed surface along the path-of-tiles, which second position is different from the first position, which energy beam is translated during an intermission without transforming the pre-transformed material along the path-of-tiles, wherein during the intermission, the energy beam irradiates a portion of the material bed that is not along the path-of-tiles, wherein the energy beam is defocused;
- and
- (d) irradiating the exposed surface of the material bed at the second position with the energy beam at the second position during a second time period to transform the pre-transformed material in the second position to a transformed material to form a second tile as part of the three-dimensional object, wherein during the second time period, the energy beam is stationary or substantially stationary such that it at most undergoes back and forth movement with respect to the second position on the exposed surface,
- wherein the first time period and/or second time period is of at least one tenth (0.1) of a millisecond, wherein the energy beam is defocused.
3 more elements
Dependencies are inferred from the claim text.