| 摘要 |
<p>The invention provides a double wire welding control method. In the double wire welding method, filler wires are fed into a consumable electrode arc for welding, deposit weld amount of the filler wires can be increased to improve welding efficiency. An electric arc is generated and a weld pool is formed between a consumable electrode and base material, the filler wires are inserted in to a latter part of the meld pool and welding is simultaneously carried out, lateral oscillations of the filler wires are carried out along a front and back direction of a welding direction, and displacement (Lh) of inserting positions of the filler wires can change in a sine wave shape. And feed speed (Fw) of the filler wires and displacement (Lh) change proportionally in the sine wave shape. Compared with lateral oscillation center position, if the inserting position of the filler wires are positioned in a front direction, fusion of the filler wires is improved, and feed speed (Fw) of the filler wires is highly speeded; and is the inserting position of the filler wires are positioned in a back direction, the weld pool is cooled, protrusions are suppressed, so forming of hump weld bead is prevented.</p> |
