Patent ID: 11925981
Assignee: ARCAM AB
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  Y | IPC B

Claim 14:
15. An electronic control unit of an additive manufacturing device, the electronic control unit comprising a processor configured to:
distribute a powder layer in a build chamber;
determine a set temperature of the powder layer;
selectively sinter the powder layer to form a plurality of sintered areas and a plurality of non-sintered areas based on a thermal model, the thermal model being used to predict a future heat conductivity of the powder layer based on a design of a three-dimensional article and a power of an energy beam used to melt a subset of the plurality of sintered areas;
melt the subset of the plurality of sintered areas; and
determine, after melting, a remaining temperature imbalance between a temperature of the subset of the plurality of sintered areas and the determined set temperature of the powder layer, wherein the determined set temperature is greater than the temperature of the subset of the plurality of sintered areas; and
heat the powder layer after melting the subset of the plurality of sintered areas and before distributing a second powder layer to reduce the remaining temperature imbalance and achieve the future heat conductivity.