Systems and methods for receiving sensor data for an operating additive manufacturing machine and mapping the sensor data with process data which controls the operation of the machine

Patent metadata

Field	Value
Publication number	US-10520919-B2
Application number	US-201715583243-A
Country	US
Kind code	B2
Filing date	May 1, 2017
Priority date	May 1, 2017
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

Method, and corresponding system, for receiving and processing sensor data for an additive manufacturing machine. The method includes determining values of the sensor data relative to time; and determining tool positions relative to time based on process data which controls operation of the additive manufacturing machine. The method further includes determining the sensor data values at the working tool positions based on a correlation of the values of the sensor data relative to time and the working tool positions relative to time. A representation of the sensor data values at the working tool positions is displayed by a user interface device.

First claim

The invention claimed is:

1. A method for receiving and processing sensor data for an operating additive manufacturing machine, the method comprising:
receiving, at a first server, the sensor data from a sensor for the operating additive manufacturing machine;
determining, using a processor of the first server, values of the sensor data relative to time;
determining, using the processor of the first server, working tool positions relative to time based on process data which controls operation of the additive manufacturing machine, the process data comprising vectors defining the working tool positions during an additive manufacturing process;
determining the sensor data values at the working tool positions based on a correlation of the values of the sensor data relative to time and the working tool positions relative to time;
displaying, on a display of the user interface device, a representation of the sensor data values at the working tool positions;
segmenting, using the processor of the first server, the process data into the working vectors and non-working vectors; and
filtering, based on the working vectors, the tool positions relative to time to obtain the working tool positions relative to time.

2. The method of claim 1 , further comprising correlating, using a processor of a user interface device, a structural model of the part with the sensor data values at the working tool positions, wherein the displaying comprises displaying at least a portion of the structural model in correspondence with the representation of the sensor data values at the working tool positions.

3. The method of claim 2 , wherein the correlating of the structural model comprises correlating each of the working tool positions of the sensor data values with a closest element of the structural model.

4. The method of claim 2 , wherein the displaying of the structural model comprises setting a color of each correlated element of the structural model in accordance with a determined color code to visually represent the respective sensor data value.

5. The method of claim 2 , wherein the correlating of the structural model with the sensor data values comprises aligning the structural model with a point cloud formed by the sensor data values relative to the working tool positions.

6. The method of claim 5 , wherein the display of the structural model comprises assigning a color to each point of the point cloud in accordance with a determined color code to visually represent the respective sensor data value; and displaying the point cloud superimposed on the structural model.

7. The method of claim 2 , wherein the process data is arranged in layers and the displaying of the structural model in correspondence with the representation of the sensor data values at the working tool positions is done on a layer-by-layer basis.

8. The method of claim 1 , wherein the receiving of the sensor data comprises sampling an output of the sensor to produce the sensor data.

9. The method of claim 1 , wherein the tool comprises a laser and the sensor comprises a pyrometer configured to detect a surface temperature of the part at a point where a beam of the laser is impinging on the part.

10. The method of claim 1 , further comprising compressing the sensor data and transmitting the sensor data via a network to a second server, the second server providing a web service to provide the sensor data to a user interface device.

11. A system for receiving and processing sensor data for an operating additive manufacturing machine, the system comprising:
a first server having a processor configured to perform:
receiving the sensor data from a sensor for the operating additive machine;
determining values of the sensor data relative to time;
determining working tool positions relative to time based on process data which controls operation of the additive manufacturing machine, the process data comprising vectors defining the working tool positions during an additive manufacturing process; and
determining the sensor data values at the working tool positions based on a correlation of the values of the sensor data relative to time and the working tool positions relative to time; and

a user interface device comprising a display and a processor configured to perform:
displaying, on a display of the user interface device, a representation of the sensor data values at the working tool positions

wherein the processor of the first server is further configured to perform:
segmenting the process data into the working vectors and non-working vectors; and
filtering, based on the working vectors, the tool positions relative to time to obtain the working tool positions relative to time.

12. The system of claim 11 , wherein the user interface device is further configured to perform correlating, using the processor of the user interface device, a structural model of the part with the sensor data values at the working tool positions, wherein the displaying performed by the user interface device comprises displaying at least a portion of the structural model in correspondence with the representation of the sensor data values at the working tool positions.

13. The system of claim 12 , wherein the correlating of the structural model comprises correlating each of the working tool positions of the sensor data values with a closest element of the structural model.

14. The system of claim 12 , wherein the displaying of the structural model comprises setting a color of each correlated element of the structural model in accordance with a determined color code to visually represent the respective sensor data value.

15. The system of claim 12 , wherein the correlating of the structural model with the sensor data values comprises aligning the structural model with a point cloud formed by the sensor data values relative to the working tool positions.

16. The system of claim 15 , wherein the display of the structural model comprises assigning a color to each point of the point cloud in accordance with a determined color code to visually represent the respective sensor data value; and displaying the point cloud superimposed on the structural model.

17. The system of claim 12 , wherein the process data is arranged in layers and the displaying of the structural model in correspondence with the representation of the sensor data values at the working tool positions is done on a layer-by-layer basis.

18. The system of claim 11 , further comprising an analog-to-digital converter configured to sample an output of the sensor to produce the sensor data.

19. The system of claim 11 , wherein the tool comprises a laser and the sensor comprises a pyrometer configured to detect a surface temperature of the part at a point where a beam of the laser is impinging on the part.

20. The system of claim 11 , further comprising a second server, wherein the processor of the first server further performs compressing the sensor data and transmitting the sensor data via a network to the second server, the second server providing a web service to provide the sensor data to the user interface device.

21. A method for receiving and processing sensor data for an operating additive manufacturing machine, the method comprising:
receiving, at a first server, the sensor data from a sensor for the operating additive manufacturing machine;
determining, using a processor of the first server, values of the sensor data relative to time;
determining, using the processor of the first server, working tool posit

Assignees

• Gen Electric

Inventors

• Zhang Li
• Berlier Jacob
• Mccann Adam
• Good Brandon

Classifications

• G05B19/4099 Primary

  Surface or curve machining, making three-dimensional [3D] objects, e.g. desktop manufacturing · CPC title

• B23K26/034

  Observing the temperature of the workpiece · CPC title

• G06F30/00

  Computer-aided design [CAD] · CPC title

• B33Y50/02

  for controlling or regulating additive manufacturing processes · CPC title

• B23K26/342

  Build-up welding · CPC title