Patent ID: 11897030
Assignee: AIR PRODUCTS AND CHEMICALS, INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  Y | IPC B

Claim 10:
11. A method comprising:
a. forming a metal part comprising a plurality of layers using a direct energy deposition additive manufacturing process, the plurality of layers comprising a top layer and a plurality of finished layers that collectively form left and right sidewalls;
b. providing at least one coolant nozzle in fluid flow communication with a cryogenic fluid, a first nozzle of the at least one coolant nozzle being positioned to provide cooling to one of the left and right sidewalls;
c. measuring a temperature difference between a first pair of adjacent layers of the plurality of layers; and
d. controlling a cooling intensity of the least one coolant nozzle in order to maintain the temperature difference between the first pair of adjacent layers below a first predetermined maximum.