| 摘要 |
PURPOSE:To execute very easily diffusion welding in the longitudinal butt direction of a thin plate long material, very easily, by constituting each welding surface of a material to be welded of an uneven engaged structure, and also providing a step difference. CONSTITUTION:Each welding surface 3 of materials to be welded 1, 2 is constituted of an uneven engaged structure, and also is worked so that a step difference 5 is provided on each surface in the engaged state. They are heated to a necessary temperature in this state shown in the figure, are pressed from the direction as indicated with an arrow 4 until the step difference 5 is plastically deformed and is annihilated, and the junction is completed. In this case, as for a part positioned at a right angle with the direction 4, pressure to be loaded is transferred as it is, and as for an inclined part, component of force of the pressure force is transferred in accordance with the inclination. Also, as for a part whose junction surface is positioned in the same direction as the direction 4, the pressure force is not transferred in itself and junction is impossible, but due to compression plastic deformation of the step difference 5 part, a metal of its part flows into the uneven part engaged with each other, and pressure force in the lateral direction is generated. Accordingly, a part positioned in the same direction as the direction 4 can be junctioned, too. |
