Selective laser sintering using functional inclusions dispersed in the matrix material being created

Patent metadata

Field	Value
Publication number	US-11534832-B2
Application number	US-202017015954-A
Country	US
Kind code	B2
Filing date	Sep 9, 2020
Priority date	Jun 4, 2015
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A selective laser sintering system includes a leveling roller having a first orientation. The leveling roller is configured to roll over a first feed bin. The build chamber is configured to receive, from the first feed bin and by the leveling roller, a transfer of a portion of matrix material. The selective laser sintering system is configured to transfer the portion to the build chamber in a number of orientations.

First claim

What is claimed:

1. A method for selective laser sintering comprising:
receiving, by a selective laser sintering system, a first control signal from a control computer, wherein the selective laser sintering system includes:
a leveling roller having a first orientation, wherein the leveling roller is configured to roll over a first feed bin; and
a build chamber configured to receive, from the first feed bin and by the leveling roller, a transfer of a portion of a matrix material, the selective laser sintering system configured to transfer the portion to the build chamber in a plurality of orientations, the matrix material including a first material and a second material within the first material, the second material having a second orientation within the first material in the first feed bin;

moving, by an actuator operatively connected to the leveling roller and in response to the first control signal, the leveling roller over the first feed bin;
transferring, by the leveling roller during the moving the levelling roller over the first feed bin, the portion of the matrix material from the first feed bin to the build chamber, wherein the second material in the portion transferred to the build chamber has a third orientation that is the same as the second orientation;
receiving, by the selective laser sintering system, a second control signal from the control computer; and
moving, by the actuator operatively connected to the leveling roller and in response to the second control signal, the leveling roller to return to a position over the first feed bin.

2. The method of claim 1 , wherein a second leveling roller is configured to roll over a second feed bin including a third material having a fourth orientation different from the second orientation and the third orientation, the second leveling roller having a fifth orientation different from the first orientation.

3. The method of claim 2 , wherein the second leveling roller applies, as another layer to a part, the second material in the fourth orientation.

4. The method of claim 2 , wherein the first orientation and the second orientation are the same orientation.

5. The method of claim 2 , wherein the first orientation and the second orientation are different orientations.

6. The method of claim 2 , wherein at least one of the first orientation and the second orientation are static.

7. The method of claim 2 , further comprising rotating the first feed bin or the build chamber such that the second material will have a selected orientation relative to a part orientation for a part being manufactured in the build chamber.

8. The method of claim 1 , wherein the second material comprises at least one of a carbon, a metallic material, a ceramic material, a fiber, a micro-particle, a nano-particles, or a carbon nano-tube.

9. The method of claim 1 , wherein the first feed bin comprises a plurality of material layers having a first layer order, wherein each material layer of the plurality of layers includes at least one of the first material or the second material, the transferring further comprising:
transferring at least one of the plurality of material layers to the build chamber in the first layer order to manufacture a part comprising the plurality of material layers in a second layer order that is reversed from the first layer order.

10. The method of claim 1 , wherein the first feed bin and the leveling roller are configured to rotate about a center of the build chamber; and wherein the build chamber is static relative to the first feed bin.

11. A method for selective laser sintering comprising:
receiving, by a selective laser sintering system, a command from a control computer, wherein the selective laser sintering system includes:
a first leveling roller having a first orientation, wherein the first leveling roller is configured to roll over a first feed bin; and
a build chamber configured to receive, from the first feed bin and by the first leveling roller, a transfer of a portion of a matrix material, the selective laser sintering system configured to transfer the portion to the build chamber in a plurality of orientations, the matrix material including a first material and a second material within the first material;

rotating, in response to the command, the first leveling roller and the first feed bin about a central axis of the build chamber, wherein the build chamber is static relative to the first feed bin and the first leveling roller.

12. The method of claim 11 , wherein the selective laser sintering system further includes a second leveling roller having a second orientation different from the first orientation.

13. The method of claim 12 , further comprising: moving the second leveling roller over a second feed bin.

14. The method of claim 13 , further comprising: rotating the second leveling roller and the second feed bin about the build chamber, wherein the build chamber is static relative to the second feed bin and the second leveling roller, and wherein the first leveling roller is coupled to the first feed bin and the second leveling roller is coupled to the second feed bin.

15. The method of claim 11 , wherein the first leveling roller is configured to transfer the portion of the matrix material, in the plurality of orientations, directly from the first feed bin to the build chamber, the plurality of orientations comprising the first orientation and a second orientation different from the first orientation.

Assignees

• Univ California

Inventors

• Kulinsky Lawrence
• Tackett Edward
• Dolan Benjamin

Classifications

• B22F10/00

  Additive manufacturing of workpieces or articles from metallic powder (apparatus or devices therefor B22F12/00) · CPC title

• B33Y50/02

  for controlling or regulating additive manufacturing processes · CPC title

• C04B2237/385

  Carbon or carbon composite · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title