A new welding method with two-wire four-pulse robot

Abstract

The invention discloses a new welding method for a robot with two wires and four pulses. The robot includes a control part, a wire feeding part, two pulse welding power sources communicating with each other and a welding torch. Arranged forward and backward at a certain angle to extend to the welding site; the control part controls the two pulse welding power sources so that the current provided to the forward wire is greater than the current provided to the rear wire; and the control part also controls the wire feeding components to provide the same or different wire feed speeds for the front and rear wires, and control the pulsed welding power supply to use four independent pulses to supply the welding current to the welding wire. The method of the invention has a wide control range, and the welding effect is beautiful and high in quality.

Description

Technical field [0001] The present invention relates to a twin wire welding technology, particularly, to a double-wire four robot novel pulse welding method. Background technique [0002] The prior art includes a consumable electrode (hereinafter referred to as welding wire) and the arc is generated between the base material and forming a molten pool, and the filler wire inserted into the molten pool of weld twin wire welding method. In this twin wire welding method, the molten metal filler wire is applied to the molten metal welding wire, thereby increasing the amount of molten metal, it can be a high-speed welding and soldering. In particular, when using a high-speed twin wire welding method of welding, In order to prevent humping (humpingbead), it is important that the filler wire for feeding the bath after a short circuit in the consumable electrode arc. This is because, if the filler wire is fed to the consumable electrode arc for melting the molten pool hardly cooled, and b...

AI Technical Summary

Problems solved by technology

In the synchronous mode, the two arcs reach the maximum value at the same time, which is conducive to forming a larger penetration depth, but the spatter is larger, which is rarely used; in the alternate mode, the interaction force of the arcs is only a quarter or even lower than that of ordinary welding. , has little effect on droplet transfer, especially suitable for light metal welding, and can significantly reduce welding spatter; random mode can not only significantly reduce the force of the arc, reduce spatter, but also achieve greater penetration, welding steel, etc. Faster welding speeds can be obtained with heavier metals, but the welding process is not as stable as the alternating mode since the two pulse signals occur randomly

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