KERI's Industry Applications Research Division has developed the core technology of ‘electron guns’ and ‘driving power system’, which can be said to be the basis of industry. Traditional welding utilizes heat from an arc (a spark generated by an electrical discharge) Electron beam welders, on the other hand, use the kinetic energy of electrons to bond materials together. The advantage of electron beam welding is that it enables defect-free joining of thick materials that could not be