| 摘要 |
The present invention relates to a method of controlling a welding power source and the associated wire feed arrangement intended for arc welding operations that employ a consumable electrode, to ensure crater filling at the end of the welding operation by means of fading of the arc voltage and of the wire feed rate, respectively. More particularly the invention relates to a method comprising arc voltage reduction at the onset of the end of the welding operation for a period that is considerably briefer than the total fading time, during which the arc voltage is reduced to a value below the value at which it is possible to weld during continuous welding and advancement in the joint with otherwise unchanged welding parameters, followed by a further reduction to a final value of arc voltage and fading of the wire feed rate simultaneously with the arc voltage fading to a final value of the wire feed rate. |
