Method for producing a three-dimensional component

Patent metadata

Field	Value
Publication number	US-11701740-B2
Application number	US-201916290942-A
Country	US
Kind code	B2
Filing date	Mar 3, 2019
Priority date	Jul 28, 2010
Publication date	Jul 18, 2023
Grant date	Jul 18, 2023

Abstract

A method for producing a three-dimensional component by means of a laser melting process, in which the component is produced by consecutively solidifying individual layers made of building material by melting the building material, wherein said building material can be solidified by the action of radiation, wherein the melting area produced by a punctiform and/or linear energy input is detected by a sensor device and sensor values are derived therefrom in order to evaluate the component quality. The sensor values detected in order to evaluate the component quality are stored together with the coordinate values that locate the sensor values in the component and are displayed by means of a visualization unit in two- and/or multi-dimensional representation with respect to the detection location of the sensor values in the component.

First claim

The invention claimed is:

1. A method of additively manufacturing a three-dimensional component by a laser melting process, the method comprising:
selectively solidifying sequential layers of a powdered build material with radiation from a radiation source comprising an energy influx, the energy influx having a point shape and/or a line-shape, the radiation causing a melt region within a build plane defined by the powdered build material, the melt region solidifying to form a three-dimensional component;
capturing sensor values from the melt region using a sensor device;
generating a component quality output based at least in part on the sensor values; and
evaluating a quality of the three-dimensional component based at least in part on the component quality output, the component quality output being used to accept, reject, or modify the three-dimensional component.

2. The method of claim 1 , comprising: displaying at least some of the sensor values in a 2D representation, the sensor values corresponding to a layer solidified by the radiation prior to a next deposition of powdered build material.

3. The method of claim 1 , comprising: displaying at least some of the sensor values in a 2D representation in the form of a freely selectable sectional plane of the three-dimensional component, the sectional plane extending at an angle to a layer solidified by the radiation.

4. The method of claim 1 , comprising: displaying, in a two-dimensional representation and/or a multidimensional representation, a portion of the sensor values corresponding to regions of the three-dimensional component that exhibit a deviation from an intended sensor value, the sensor values and the intended sensor values being indicative of density, degree of solidification, temperature, energy influx, and/or melt pool dimensions, the deviation from the intended sensor value displayed visually and/or highlighted.

5. The method of claim 1 , comprising: displaying the component quality output in a two-dimensional and/or multidimensional representation in respect of the capture location thereof in the three-dimensional component.

6. The method of claim 5 , comprising: displaying the component quality output, wherein displaying the component quality output comprises: displaying one or more sensor values representing an optimized value in a first color, a first grayscale value, a first degree of transparency and/or with a first areal structure; and displaying one or more sensor values representing a deviation upward or downward from the optimized value in a second color, a second grayscale value, a second degree of transparency and/or in respect of a second areal structure.

7. The method of claim 1 , comprising: localizing the sensor values to the three-dimensional component and evaluating the quality of the three-dimensional component based at least in part on the component quality output.

8. The method of claim 7 , comprising:
determining coordinate values localizing the sensor values to the three-dimensional component based at least in part on build coordinate values used to produce the three-dimensional component.

9. The method of claim 7 , comprising:
determining the coordinate values based at least in part on sensor value coordinates obtained when capturing the sensor values and using the coordinate values to localize the sensor values to the three-dimensional component.

10. The method of claim 9 , comprising:
determining the sensor value coordinates based at least in part on an areal capture of at least a portion of the build plane, the at least a portion of the build plane including the melt region.

11. The method of claim 7 , comprising:
assigning coordinates to the sensor values based at least in part on exposure data or scanner data.

12. The method of claim 1 , comprising: capturing at least some of the sensor values with a time delay with respect to the time of the energy influx; and displaying the component quality output, wherein the component quality output comprises a visualization that exhibits a time profile of a thermal behavior of the melt region.

13. The method of claim 1 , comprising: capturing, for a given location on the build plane, a plurality of the sensor values with respectively different time delays with respect to the time of the energy influx at the given location on the build plane.

14. The method of claim 1 , wherein the three-dimensional component is modified during solidification of the powdered build material.

15. A method additively manufacturing a three-dimensional component, the method comprising:
selectively solidifying sequential layers of a powdered build material with radiation from a radiation source comprising an energy influx, the energy influx having a point shape and/or a line-shape, the radiation causing a melt region within a build plane defined by the powdered build material, the melt region solidifying to form a three-dimensional component;
capturing sensor values from the melt region using a sensor device; and
generating a component quality output based at least in part on the sensor values for use in accepting, rejecting, or modifying the three-dimensional component, wherein generating the component quality output comprises correlating the sensor values with coordinate values of the component.

16. The method of claim 15 , comprising:
correlating the sensor values with coordinate values of the component based at least in part on scanner data; and
localizing the sensor values to the component quality output for the three-dimensional component.

17. The method of claim 15 , comprising:
evaluating a quality of the three-dimensional component based at least in part on the component quality output; and
displaying the component quality output in a two-dimensional and/or multidimensional representation of at least a portion of the three-dimensional component and a capture location of the sensor values in the three-dimensional component.

18. A method of additively manufacturing a three-dimensional component, the method comprising:
selectively solidifying sequential layers of a powdered build material with radiation from a radiation source comprising an energy influx, the energy influx having a point shape and/or a line-shape, the radiation causing a melt region within a build plane defined by the powdered build material, the melt region solidifying to form a three-dimensional component;
capturing sensor values from the melt region using a sensor device;
generating a component quality output based at least in part on the sensor values for use in accepting, rejecting, or modifying the three-dimensional component; and
correlating the sensor values with coordinate values of the component.

19. The method of claim 18 , comprising:
localizing the sensor values to the three-dimensional component; and
evaluating a quality of the three-dimensional component based at least in part on the component quality output, the component quality output being used to accept, reject, or modify the three-dimensional component.

20. The method of claim 19 , comprising:
displaying the component quality output in a two-dimensional and/or multidimensional representation in respect of the respective capture location in the three-dimensional component of at least some of the sensor values.

Assignees

• Concept Laser Gmbh
• Univ Leuven Kath

Inventors

• Herzog Frank
• Bechmann Florian
• Berumen Sebastian
• Kruth Jean Pierre
• Craeghs Tom

Classifications

• B22F10/00 Primary

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

• B23K26/0622

  by shaping pulses · CPC title

• B23K26/705

  Beam measuring devices · CPC title

• B23K31/12 Primary

  relating to investigating the properties, e.g. the weldability, of materials · CPC title

• B23K31/125

  Weld quality monitoring · CPC title