| 摘要 |
PURPOSE:To uniform temperature rise at the joining boundary and attain stable joining in a device that welds a conductor on the surface of an end of a conductor, by constructing specifically the press energizing face of electrode of at least one side. CONSTITUTION:For instance, an end of the pedestal 1 of the first conductor and a contact point 2 of the second conductor are held by the first and second electrodes 3, 4 and press energized. At least one of press energizing face of the electrodes 3, 4 is constituted of a conductor and an insulator, or two kinds of conductors different in electric resistance. When the insulator 9 is provided on the end face side of the end part 101 of the pedestal 1 of press energizing face of the electrode 4, and energized as mentioned above, welding current flows deviating to opposite side 102 of the end face direction of the end part 101 as shown by broken line arrows, and heat is generated there positively. Consequently, heat currents C, C' are formed in the direction 102 opposite to the end face direction of the end part 101. In this case, temperature difference between points A and B can be made as small as (TA-TB) by setting the contact area between the insulator 9 and pedestal 1 according to the size of the contact point 2 and pedestal 1. |
