JPWO2020072638A5

JPWO2020072638A5 -

Info

Publication number: JPWO2020072638A5
Application number: JP2021502866A
Authority: JP
Publication date: 2022-10-11
Anticipated expiration: 2039-10-02

Claims

A system for leveling a build surface of an additive manufacturing system comprising:
a building plate;
a base;
a post extending between the base and the build plate and configured to support at least a portion of a load applied to the build plate;
a heater attached to the strut and configured to heat a portion of the strut.

2. The system of claim 1 , further comprising a fixation plate to which said build plate is mounted, said post being attached to said fixation plate.

The base is configured to be maintained at a first temperature, the stationary plate is configured to be maintained at a second temperature greater than the first temperature, and the heater is configured to be at or below the second temperature. 3. The system of claim 2 , configured to heat the portion of the strut to a third temperature.

4. The system of claim 3 , wherein the base comprises at least one selected from the group consisting of cooling pads and cooling channels for maintaining the base at the first temperature.

5. The system of claim 3 or 4 , wherein the stationary plate comprises a second heater configured to maintain the stationary plate at the second temperature.

6. The system of any one of claims 1-5 , wherein the heater is located at a position along the length of the post closer to the build plate than to the base.

7. The system of any one of claims 1-6 , further comprising a build plate heater configured to heat the build plate.

8. The system of any one of claims 1-7, wherein the heater and the build plate attached to the stanchion are independently controllable.

The additive manufacturing system according to claim 1 ,
a shroud vertically displaceable relative to the build plate to define a boundary around a build volume above the build plate;
a powder deposition system configured to deposit a powder layer along an upper surface of the build volume, wherein the powder deposition is vertically displaceable relative to the build plate;
An optics assembly configured to direct laser energy from one or more laser energy sources toward the build volume, wherein exposure of the powder layer to the laser energy causes at least one of the powder layers to an optical system assembly, the portion of which melts ;
An additive manufacturing system , wherein the strut is two or more struts, each strut comprising a separate heater .

The claim further comprising a controller operably coupled to each heater, said controller configured to independently set a temperature setpoint for each heater to adjust the temperature profile along each strut. Item 9. The laminate manufacturing system according to Item 9.

11. The additive manufacturing system of Claim 10 , further comprising a build plate heater operably coupled to the controller, the controller configured to set a temperature setpoint for the build plate.

12. The additive manufacturing system of claim 11 , wherein the temperature setpoint of the build plate is different than the temperature setpoint of at least one of the heaters of the columns.

13. Any one of claims 10-12, further comprising a build plate sensor operably coupled to the controller, the build plate sensor configured to determine an orientation of the build plate. Additive manufacturing system.

In response to the build plate sensors determining that the orientation of the build plate differs from the horizontal orientation, the controller adjusts the temperature profile along each strut to adjust the length of each strut. 14. The additive manufacturing system of claim 13 , wherein the additive manufacturing system is configured to

15. The additive manufacturing system of any one of claims 10-14, wherein at least one strut comprises two or more independently adjustable heaters operably coupled to the controller.

16. The additive manufacturing system of any one of claims 9-15, wherein the build plate is mounted on a fixed plate below the build plate and each post is attached to the fixed plate.

17. The additive manufacturing system of any one of claims 9-16, wherein each post extends from a base of the additive manufacturing system comprising at least one selected from the group consisting of a cooling plate and a cooling channel.

10. Further comprising two or more secondary stanchions, each stanchion extending from the intermediate plate to support the build plate and extending between the intermediate plate and the base of the additive manufacturing system. 18. The additive manufacturing system according to any one of 17 to 17 .

A method for leveling a build plate of an additive manufacturing system comprising:
A method comprising controlling a temperature profile along a pillar supporting the build plate to control orientation of the build plate.

20. The method of claim 19, further comprising controlling the temperature profile along the strut with a heater.

21. The method of claim 19 or 20, wherein the strut is two or more struts and further comprising adjusting the temperature profile along each strut independently.

22. A method according to any one of claims 19 to 21, wherein adjusting the temperature profile along each strut adjusts the length of each strut.

maintaining a base at a first temperature, maintaining a stationary plate at a second temperature greater than the first temperature, and heating a portion of the strut to a third temperature less than or equal to the second temperature. 23. The method of any one of clauses 19-22.