Determination and control of cooling rate in an additive manufacturing system
AssigneeSigma Labs, Inc.
InventorsLars Jacquemetton, Martin S. Piltch, Darren Beckett
Life of this patent
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Abstract
An additive manufacturing system includes a work region having a layer of metallic powder distributed across at least a portion of the work region. The system further includes a power source, a scanning and focusing system and a processor. The processor is configured to control the power source to emit a beam of energy at a power level and to manipulate the beam of energy across the work region in a plurality of build tracks to form a part from the fused metallic powder. The processor further determines a cooling rate at a termination of each of the plurality of build tracks and controls the power level of the power source in response to the determined cooling rate.
Claims20
An additive manufacturing system comprising:
- a power source configured to emit a beam of energy that impinges a work region of a build plane;
- a sensor configured to sense a temperature of the work region;
- and
- a processor coupled to the sensor and configured to determine a cooling rate of the work region after the power source has been terminated.
An additive manufacturing system comprising:
- a work region including a layer of metallic powder;
- a power source;
- a scanning and focusing system;
- and
- a processor configured to:
- control the power source to emit a beam of energy at a power level;
- manipulate the beam of energy across the work region in a plurality of build tracks to form a part;
- determine a cooling rate at a termination of each of the plurality of build tracks;
- and
- control the power level of the power source in response to the determined cooling rate.
Dependencies are inferred from the claim text.