Electron-beam hardening cutting area of flat tool - by overlap mounting blades, while leaving area to be hardened uncovered etc.

摘要

Cutting area of flat tool; e.g. harvester blades, made of hardenable steel is electron beam-hardened by a method in which blades (1) are mounted to overlap, while leaving the area to be hardened uncovered. The support (3) is moved relative to the energy beam (6), which is moved along scanning lines with a high-frequency periodic motion. The width of the energy transmission area is slightly larger than blade width and isothermal surface energy transmission is achieved. ADVANTAGE - Economic prodn..