| 摘要 |
PURPOSE:To improve the quality and productivity of a product by forming the projected line for depositing in the longitudinal direction on the inner side face of an end plate, then spot-depositing it with press-contacting of the end face of a bearing bar and the apex part of the projected line for depositing. CONSTITUTION:Two projected lines 5A, 5B for deposition continuing in the longitidinal direction are formed in advance at the opposing inner side face sides of end plates 1A, 1B. A bearing bar 2 is assembled by arranging it between the plates 1A, 1B, the pressing terminal 8 for welding is press-contacted from the external side and a clamp terminal 9 is fitted to the bar 2. A concentrated current is generated at the welding part by passing an electricity between terminals 8, 9 in this state and the spot welding in short time is performed. Owing to the spot welding being performed via the projected line for depositing 5A, 5B the dispersion in the strength and deposition traces are eliminated. Moreover, the automation in working is enabled and the quality and productivity of the product are improved.
|
