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Microwelding using a modified SEM

MacCallum, D.; Knorovsky, Gerald A.; Nowak-Neely, B.

Micro-scale welding has been successfully demonstrated using a Scanning Electron Microscope-based Electron Beam Welding (μEBW) technique. Modifications to a standard SEM to increase beam power, beam diagnostics, and Monte Carlo simulations of energy deposition are used to discuss how the technique may be used in practice. In particular, beam-material sub-surface interaction volumes and energy source location tailoring effects will be discussed. Additional desirable enhancements for the future will be noted. Copyright © 2006 ASM International®.