Patent ID: 11925983
Assignee: ARCAM AB
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  H  Y | IPC B  H

Claim 6:
7. An electron beam additive manufacturing system, the electron beam manufacturing system comprising:
a build chamber;
a plurality of electron beam guns, each one of the plurality of electron beam guns emitting a corresponding electron beam within the build chamber and comprising a plurality of coils, wherein:
each plurality of coils comprises a focusing coil, a deflection coil, and an astigmatism coil, and
at least one coil of each plurality of coils lacks shielding positioned around the at least one coil; and

a calibration system that calibrates each one of the plurality of electron beam guns, the calibration system comprising:
an imaging device positioned to capture one or more images of an impingement of electron beams emitted from the plurality of electron beam guns on a surface within the build chamber, and
an analysis component communicatively coupled to the imaging device and programmed to receive image data corresponding to the one or more images, determine one or more calibration parameters from the image data, and transmit one or more instructions to the plurality of electron beam guns in accordance with the one or more calibration parameters.