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

Claim 0:
1. A calibration system for an electron beam additive manufacturing system comprising a 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 a build chamber of the electron beam additive manufacturing system; 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, wherein:
each electron beam gun of the plurality of electron beam guns comprises a plurality of coils,
the plurality of coils of each electron beam gun comprises a focusing coil, a deflection coil, and an astigmatism coil,
the one or more instructions comprise an instruction to modify an electrical current that adjusts an electromagnetic field of at least one coil of at least one of the plurality of coils, and
at least one coil of each plurality of coils lacks shielding positioned around the at least one coil.