EBW
Electron Beam Welding
EBW – Electron Beam Welding – is a process in which high-energy electrons are focused on to the joint to be welded. The electron stream generates localised heating and melts the parent material at the joint. The localised heating generates a very narrow weld and the heat-affected zone is kept small. No filler metal is required: the melted parent material forms the weld.
EBW keeps distortion to a minimum and can weld a large variety of dissimilar metals. The electron beam and high-quality welds are produced in a high vacuum for thicknesses ranging from very thin foils up to 250 mm sections. The presence of air or gas molecules will defocus the beam. Technologies exist which allow EBW to be performed in medium vacuum and non-vacuum conditions.
What the hec?! articles are not intended to be the definitive account on the topic or acronym in question. Readers’ comments and contributions are welcomed. Email: ndtnews@bindt.org
EBW keeps distortion to a minimum and can weld a large variety of dissimilar metals. The electron beam and high-quality welds are produced in a high vacuum for thicknesses ranging from very thin foils up to 250 mm sections. The presence of air or gas molecules will defocus the beam. Technologies exist which allow EBW to be performed in medium vacuum and non-vacuum conditions.
What the hec?! articles are not intended to be the definitive account on the topic or acronym in question. Readers’ comments and contributions are welcomed. Email: ndtnews@bindt.org
