Nonvacuum Electron Beam Welder as Welding Tool

The nonvacuum welder is described, and scattering problems associated with bringing the beam into the air are discussed. Physical parameters associated with vacuum and non-vacuum welding are reviewed. A description is given of a newly designed 12-kW nonvacuum-electron beam welder whose welding head can be shifted from the horizontal to the vertical position and moved horizontally at speeds up to 140 in/min. Performance data on the variation of electrical characteristics with life are reviewed. Nonvacuum welding results are reviewed and applications of electron beam (EB) welding are briefly discussed.