Expansion of the capability of SEBM by improved electron beam technology
Commercial available EBSM machines show strong limitations with respect to the beam power, beam quality and beam control. To overcome these limitations, the electron gun and control system of an Arcam S12 System was renewed. The resulting machine is equipped with a 6 kW electron beam gun and a backscattering electron detector for process monitoring. This is the first electron beam AM machine where the electron beam serves for both, processing and analyzing.
Contact:
Prof. Dr.-Ing. habil. Carolin Körner
Publications:
Surface topographies from electron optical images in electron beam powder bed fusion for process monitoring and control
In: Additive Manufacturing 60 (2022), Article No.: 103172
ISSN: 2214-7810
DOI: 10.1016/j.addma.2022.103172
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Electron-optical in-situ metrology for electron beam powder bed fusion: calibration and validation
In: Measurement Science & Technology 33 (2022), Article No.: 014001
ISSN: 0957-0233
DOI: 10.1088/1361-6501/ac2d5c
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Electron-optical in-situ crack monitoring during electron beam powder bed fusion of the Ni-Base superalloy CMSX-4
In: Progress in Additive Manufacturing (2022)
ISSN: 2363-9512
DOI: 10.1007/s40964-022-00357-9
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Grundlagenuntersuchung zur elektronen-optischen Prozessbeobachtung beim Pulverbettschmelzen mit dem Elektronenstrahl (Dissertation, 2022)
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Electron-Optical In Situ Imaging for the Assessment of Accuracy in Electron Beam Powder Bed Fusion
In: Materials 14 (2021), Article No.: 7240
ISSN: 1996-1944
DOI: 10.3390/ma14237240
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In-situ electron optical measurement of thermal expansion in electron beam powder bed fusion
In: Additive Manufacturing 46 (2021)
ISSN: 2214-7810
DOI: 10.1016/j.addma.2021.102213
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A multivariate meltpool stability criterion for fabrication of complex geometries in electron beam powder bed fusion
In: Additive Manufacturing 45 (2021), Article No.: 102051
ISSN: 2214-7810
DOI: 10.1016/j.addma.2021.102051
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In Operando Monitoring by Analysis of Backscattered Electrons during Electron Beam Melting
In: Advanced Engineering Materials 22 (2019), Article No.: 1901102
ISSN: 1438-1656
DOI: 10.1002/adem.201901102
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Immediate development of processing windows for selective electron beam melting using layerwise monitoring via backscattered electron detection
In: Materials Letters 249 (2019), p. 70 - 72
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2019.03.048
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Layerwise monitoring of electron beam melting via backscatter electron detection
In: Rapid Prototyping Journal 24 (2018), p. 1401 - 1406
ISSN: 1355-2546
DOI: 10.1108/RPJ-02-2018-0034
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