process for the production of large steel rotary bodies for construction machinery, construction of large turbine generators, and trees).

摘要

A method of producing large rotatable steel parts with circular cross-sections for construction of large machines such as shafts of generators and turbines. In a first stage a welding process is effected under a welding head for production of a weld connection in the central region of a welding gap between the parts. This central weld is subsequently circularly machined and the remaining peripheral groove is widened and formed of V shape. The parts are then welded at the groove, while the parts are rotated, by use of a welding process with a granulated welding flux.