Abstract
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.
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