| 摘要 |
<p>PROBLEM TO BE SOLVED: To connect aluminum members firmly by means of simple equipment, without increasing the size of the equipment or causing any energy loss similar to a case based on a laser welding method. SOLUTION: In the manufacture of a battery case formed by connecting a plurality of aluminum members 1, 2 together, a brazing filler material 3 with a melting point lower than that of the aluminum members 1, 2 is arranged in a joint interface between the aluminum members 1, 2, and then the joint interface is compressed in the connecting direction by utilizing electromagnetic force, and consequently the aluminum members 1, 2 are connected together through solid phase diffusion. Desirably, compression is carried out so that permanent compressive distortion in the joint interface becomes 4% or more, and in connecting, it is recommend that the joint interface be heated at a temperature lower than the melting point of the brazing filler material.</p> |
