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

Claim 0:
1. A method comprising:
distributing a powder layer in a build chamber;
determining a set temperature of the powder layer;
selectively sintering 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;
melting the subset of the plurality of sintered areas;
determining, after melting, a remaining temperature imbalance between a temperature throughout the powder layer including 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 powder layer including the subset of the plurality of sintered areas; and
heating 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.