| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of joining different metals by which the corrosion (electric corrosion) caused by contact of the different metals is prevented and a different material joint excellent in corrosion resistance and bonding strength is obtained in a member which is composed by joining the different metals, and to provide a joining structure by such a method. SOLUTION: When superimposing and joining the different metals, welding is performed in the state where a sealant 5 is arranged so as to encircle the predetermined joining part 1a between the different metal materials 1, 2. At this time, desirably, after forming a recessed part 3a or a projecting part 4a so as to encircle the predetermined joining part 1a on the joint surface of the material 1, the sealant 5 is arranged around the recessed part 3a or the projecting part 4a. COPYRIGHT: (C)2008,JPO&INPIT |
