| 摘要 |
PURPOSE:To satisfactorily perform welding and joining at the time of joining the clad materials by performing underlaying by the welding process with the shallow penetration and then, performing finish-laying by the welding process with the deep penetration in the welding method to multi-lay filler metal on a cladding material groove. CONSTITUTION:In joining the clad materials 1 covered with cladding materials 3 on base metals 1, the filler metal is multi-laied on the cladding material 3 groove according to this welding method. The underlaying is performed by the welding process with the shallow penetration and then, the finish-laying is performed by the welding process with the deep penetration. Consequently, the composition change of a weld zone is slight, the weld zone having the composition aimed at and few defects and having desired characteristics is formed on the cladding material groove and the clad materials are satisfactorily welded and joined together via this weld zone. |
