FIELD: welding processes and equipment, namely welding hard-to-weld products of super-alloys, possibly in different branches of machine engineering.
SUBSTANCE: method comprises steps of preliminarily heating the whole zone of welded seam and region near said zone till yielding temperature higher than aging temperature and lower than initial melting temperature of super-alloy; sustaining such temperature during welding process and at solidifying of welded seam; increasing temperature of welded article till temperature of releasing mechanical stresses; cooling welded article till temperature lower than temperature range of dispersed solidification of primary gamma-phase at rate lowering separation of primary gamma-phase.
EFFECT: possibility for making welded articles having no cracking in welded seam and in base alloy.
12 cl, 3 dwg, 1 tbl, 2 ex
Authors
Dates
2005-12-10—Published
2001-02-21—Filed