Weld formation control at electron beam welding with beam oscillations
Автор: Trushnikov Dmitriy Nikolaevich, Koleva Elena Georgieva, Mladenov Georgy Mihaylov, Shcherbakov A.V.
Журнал: Сибирский аэрокосмический журнал @vestnik-sibsau
Рубрика: Технологические процессы и материалы
Статья в выпуске: 3 (55), 2014 года.
Бесплатный доступ
Electron beam welding is used extensively to produce essential machine parts. The control of the basic beam parameters - beam power or beam current at constant accelerating voltage, welding speed, current of focusing lens and distance between electron gun and welded sample surface - is not enough to obtain at most of the regimes sound welds. Control of the focus position using analysis of the high frequency component of the current, collected by plasma, at periodic interactions on the beam (the oscillation of the beam or modulation of the focusing current) could be a way for the formation of non-defect welds at these conditions. The statistical analysis of weld geometry is shown.
Electron beam welding, penetration control, focus control, beam oscillation, focus scanning
Короткий адрес: https://sciup.org/148177842
IDR: 148177842
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