Laser filler wire welding technique

Abstract

The invention relates to a laser filler wire welding technique. The laser filler wire welding technique comprises the following steps that a wire feeding head, a laser head, a cross-shaped fine-adjustment device, a connecting plate, a clamping base and a clamping sleeve are obtained for use; the cross-shaped fine-adjustment device is fixed to the laser head, the clamping base is fixed to the cross-shaped fine-adjustment device, one end of the connecting plate is hinged to the clamping base through a hinge shaft, the clamping sleeve is hinged to the other end of the connecting plate through a hinge shaft, and the wire feeding head is installed in the clamping sleeve; welding wires are installed in the wire feeding head; the quantity of fed welding wires is adjusted through the wire feeding head, and the wire feeding angle of the welding wires in the wire feeding head is adjusted through the cross-shaped fine-adjustment device; the laser head is started for welding so that the welding wires can enter a molten pool smoothly. The laser filler wire welding technique has the advantages that the welding quality is improved, the technological processes are simple, and the technique can be implemented easily.

Description

technical field [0001] The invention relates to a laser welding process, in particular to a laser wire-filling welding process. Background technique [0002] Single laser welding technology is a relatively new welding process at present. Compared with traditional arc welding, its main advantages are: [0003] 1. Fast welding speed; [0004] 2. The deformation of the welding product is small or even no deformation; [0005] 3. The welding efficiency is much higher than that of traditional arc welding; [0006] 4. The welding heat-affected area is small, and the weld strength is better than that of traditional welding; [0007] 5. For products that need to process welds, the post-processing time is faster. [0008] At the same time, there are certain disadvantages in single laser welding processing technology, as follows: [0009] 1. The diameter of single laser spot is small, which requires high equipment; [0010] 2. During the welding process of single laser welding, ...

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Problems solved by technology

[0011] 3. The processing precision of the welding seam in the early stage is quite high. In addition to the increase in processing costs, excessive processing precision cannot be guaranteed;

[0012] 4. The performance of single laser in the welding error tolerance rate is very poor. Problems such as teaching error, base metal processing accuracy and equipment accuracy may easily lead to poor weld formation

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