Patent ID: 8038047
Filing Date: 2011-10-18
Classification: B23K

Abstract:
1. A method for welding a metallic material, the method comprising: causing two metallic materials having a melting point of at least 2000° C. to face each other in a welding part; inserting a rod-like rotary tool comprising Ir into the welding part; and rotating the rotary tool while an inert atmosphere is produced in the welding part on at least a side, into which the rotary tool is inserted, in order to weld the two metallic materials together, wherein the rotary tool further comprises either a substance having 0.9 to 35.3 mass % of Re or a substance having 0.9 to 36.3 mass % of Re and 0.05 to 3 mass % of Zr wherein the rotary tool further comprises any of Mo, W, Ta, and Hf.