Method and apparatus for electron beam welding

摘要

An method for electron beam welding including the step of preparing an appropriate number of vacuum chamber units. Each of the chamber units has opposite open ends and is provided with a first adaptor for accommodating an electron beam welding gun and a second adaptor for accommodating an evacuating device. The vacuum chamber units are connected in series to form one longer chamber. Workpieces to be welded to each other are put into the longer chamber. Then, the longer chamber is closed at the opposite outermost open ends by end closure members, and thereafter, electron beam welding is performed.