FIELD: proposed engineering.
SUBSTANCE: method relates to arc welding by three-phase arc. Proposed method consists in welding by two dependent and one independent AC arcs that fire in inert gas atmosphere. Phase currents of, at least, dependent arcs in electrodes and articles feature the shape of square pulses of forward and reverse polarity. At every time moment, no more than two arcs are fired. Width of forward polarity square pulses from article to electrode is smaller than that of reverse polarity pulses from electrode to article.
EFFECT: higher quality of weld joint.
2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ARC WELDING WITH THREE-PHASE ARC AND DEVICE FOR ARC WELDING | 2012 |
|
RU2548542C2 |
| WELDING METHOD BY COMBINATION OF COMPRESSED AND FREE ARCS | 2021 |
|
RU2763808C1 |
| METHOD OF MAKING WELDED JOINT ROOT PASS BY NONCONSUMABLE ELECTRODE IN PROTECTIVE GASES | 2008 |
|
RU2381092C2 |
| METHOD OF ARC WELDING WITH PULSED CURRENT | 0 |
|
SU1449273A1 |
| METHOD OF ARC TWO-ELECTRODE MECHANIZED WELDING | 2019 |
|
RU2724759C1 |
| METHOD FOR PLASMA SURFACING AND WELDING BY COMBINATION OF ARCS | 2021 |
|
RU2763912C1 |
| DEVICE FOR ARC WELDING BY DIFFERENT POLARITY SQUARE PULSE CURRENT | 1998 |
|
RU2135336C1 |
| NON-CONSUMABLE ELECTRODE WELDING METHOD OF ALUMINIUM AND ITS ALLOYS | 2023 |
|
RU2817683C1 |
| METHOD OF ARC MECHANIZED TWO-ELECTRODE WELDING | 2016 |
|
RU2639586C1 |
| METHOD OF ALUMINIUM ALLOYS WELDING BY COMBINATION OF ARCS | 2019 |
|
RU2728144C1 |
