Determination and control of cooling rate in an additive manufacturing system
AssigneeDivergent Technologies, Inc.
InventorsLars Jacquemetton, Martin S. Piltch, Darren Beckett
Life of this patent
Estimating the term…
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.
Claims10
An additive manufacturing system comprising:
- a power source configured to scan a beam of energy across first and second work regions of a build plane;
- a sensor configured to sense a temperature of each of the first and second work regions;
- and
- a processor coupled to the sensor and configured to control a first cooling rate of the first work region after the first work region is fused by the beam of energy and to control a second cooling rate of the second work region after the second work region is fused by the beam of energy by controlling a thermal energy density (TED) of each of the first and second work regions, wherein the TED is determined by dividing the sensed temperature of the respective work region by an area of the respective work region, and wherein the first cooling rate is greater than the second cooling rate.
Dependencies are inferred from the claim text.