Apparatuses for three-dimensional printing
First Claim
Patent Images
1. A system for printing a three-dimensional object, comprising:
- a platform configured to support a bottom skin layer of hardened material that is a part of the three-dimensional object, wherein the bottom skin layer is disposed above the platform;
a material dispenser configured to dispense a pre-transformed material towards the platform through an opening, wherein the material dispenser is disposed adjacent to the platform;
an energy source configured to generate an energy beam that transforms at least a portion of the pre-transformed material at or adjacent to the platform, wherein the energy source is disposed adjacent to the platform; and
one or more controllers operatively coupled to the material dispenser and the energy source, which one or more controllers are individually or collectively programmed to;
(A) direct the material dispenser to dispense the pre-transformed material at or above the bottom skin layer, and(B) direct the energy beam to;
(I) transform the at least the portion of the pre-transformed material to form a first portion of transformed material at or above the bottom skin layer that comprises a second portion of transformed material, which first portion of transformed material at least partially overlaps the second portion of transformed material along a lateral dimension of the bottom skin layer; and
(II) increase a temperature of the second portion of transformed material under heating conditions sufficient to yield a target temperature value that is one or more of (i) above a solidus temperature of a material of the bottom skin layer and below a liquidus temperature of the material of the bottom skin layer, and (ii) at or above a temperature at which the material of the bottom skin layer in the second portion of transformed material plastically yields.
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Accused Products
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.
573 Citations
26 Claims
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1. A system for printing a three-dimensional object, comprising:
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a platform configured to support a bottom skin layer of hardened material that is a part of the three-dimensional object, wherein the bottom skin layer is disposed above the platform; a material dispenser configured to dispense a pre-transformed material towards the platform through an opening, wherein the material dispenser is disposed adjacent to the platform; an energy source configured to generate an energy beam that transforms at least a portion of the pre-transformed material at or adjacent to the platform, wherein the energy source is disposed adjacent to the platform; and one or more controllers operatively coupled to the material dispenser and the energy source, which one or more controllers are individually or collectively programmed to; (A) direct the material dispenser to dispense the pre-transformed material at or above the bottom skin layer, and (B) direct the energy beam to; (I) transform the at least the portion of the pre-transformed material to form a first portion of transformed material at or above the bottom skin layer that comprises a second portion of transformed material, which first portion of transformed material at least partially overlaps the second portion of transformed material along a lateral dimension of the bottom skin layer; and (II) increase a temperature of the second portion of transformed material under heating conditions sufficient to yield a target temperature value that is one or more of (i) above a solidus temperature of a material of the bottom skin layer and below a liquidus temperature of the material of the bottom skin layer, and (ii) at or above a temperature at which the material of the bottom skin layer in the second portion of transformed material plastically yields. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for printing a three-dimensional object, comprising:
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a container configured to support a material bed comprising an exposed surface, a pre-transformed material, and a bottom skin layer of hardened material, wherein at least a fraction of the pre-transformed material is disposed above the bottom skin layer, wherein the bottom skin layer is part of the three-dimensional object; an energy source configured to generate an energy beam that transforms at least a portion of the at least the fraction of the pre-transformed material to a transformed material as part of the three-dimensional object, wherein the energy source is disposed adjacent to the material bed; and one or more controllers operatively coupled to the energy source, which one or more controllers are individually or collectively programmed to direct the energy beam to; (I) transform the at least a portion of the pre-transformed material to form a first portion of transformed material at or above the bottom skin layer that comprises a second portion of transformed material, which first portion of transformed material at least partially overlaps the second portion of transformed material along a lateral dimension of the bottom skin layer; and (II) increase a temperature of the second portion of transformed material under heating conditions sufficient to yield a target temperature value that is one or more of (i) above a solidus temperature of a material of the bottom skin layer and below a liquidus temperature of the material of the bottom skin layer, and (ii) at or above a temperature at which the material of the bottom skin layer in the second portion of transformed material plastically yields. - View Dependent Claims (9, 10, 11, 12)
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13. A system for printing a three-dimensional object, comprising:
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a platform configured to support a target surface and a bottom skin layer of hardened material that is a part of the three-dimensional object, wherein the bottom skin layer is disposed above the platform; a material dispenser configured to dispense a pre-transformed material towards the target surface through an opening of the material dispenser, wherein the material dispenser is disposed adjacent to the target surface; an energy source configured to generate an energy beam that transforms at least a portion of the pre-transformed material at or adjacent to the target surface, wherein the energy source is disposed adjacent to the target surface; and one or more controllers operatively coupled to the energy source, wherein the one or more controllers are individually or collectively programmed to; (I) direct the energy beam to transform the at least the portion of the pre-transformed material at or adjacent to the target surface to a transformed material portion disposed above the bottom skin layer, and (II) control at least one characteristic of the energy beam such that a temperature of the hardened material at the bottom skin layer below the transformed material portion is one or more of (i) above a solidus temperature of a material of the bottom skin layer and below a liquidus temperature of the material of the bottom skin layer, and (ii) at or above a temperature at which a material in the bottom skin layer plastically yields. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A system for printing a three-dimensional object, comprising:
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a container configured to support a material bed comprising an exposed surface, a pre-transformed material, and a bottom skin layer of hardened material, wherein at least a fraction of the pre-transformed material is disposed above the bottom skin layer, wherein the bottom skin layer is part of the three-dimensional object; an energy source configured to generate an energy beam that transforms at least a portion of the at least the fraction of the pre-transformed material to a transformed material as part of the three-dimensional object, wherein the energy source is disposed adjacent to the material bed; and one or more controllers operatively coupled to the energy source, which one or more controllers are individually or collectively programmed to; (I) transform the at least the portion of the pre-transformed material to a transformed material portion, and (II) control at least one characteristic of the energy beam such that a temperature of the hardened material at the bottom skin layer below the transformed material portion is one or more of (i) above a solidus temperature of a material of the bottom skin layer and below a liquidus temperature of the material of the bottom skin layer, and (ii) at or above a temperature at which the material of the bottom skin layer plastically yields. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification