Verfahren und Vorrichtung zum Elektronenstrahlschweißen

摘要: A method of electron-beam welding with in-process heat treatment comprises the steps of, pre-heating a region workpiece 20 to be welded by means rastered defocused electron beam, said focusing beam 22 on workpiece, simultaneously and subsequently controlling temperature regions around rastering defocus 24, 25. The is in variable pattern may at different currents as necessary. invention also includes computer controlled apparatus adapted move both focused formats over alter current mode achieve necessary input for control.