METHOD FOR POST REPAIR WELDING SURFACE TREATMENT OF COPPER ALLOY CAST MATERIAL

摘要

The present invention relates to a method for surface treating after repair welding of a copper-alloy casting material. One embodiment of the present invention provides the method for surface treating after repair welding of the copper-alloy casting material, and comprises the steps of: preparing the copper-alloy casting material; detecting a casting defect of the copper-alloy casting material; removing the casting defect; repair welding a region from which the casting defect is removed to form a weld unit; removing welding beads of the welding unit; and shot peening the surface of the weld unit from which the welding bead has been removed.