Laser welding method for realizing rapid splicing of high-strength steel
A technology of laser welding and rapid splicing, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve problems such as prolonging production time, reducing production efficiency, and decreasing toughness, so as to reduce the rate of weld fracture and improve production Efficiency and the effect of improving rollability
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[0033] See figure 1 , figure 2 , The present invention is a laser welding method for rapid splicing of high-strength steel, which includes the following steps:
[0034] 1) Two hot coils of high-strength steel are used as the front coil and the back coil respectively; the tail of the front coil and the head of the back coil are cut by double-cutting shear and then centered and spliced; the splicing gap is the front The butt gap between the tail of the coiled strip and the head of the back coiled strip is 0.05mm-0.30mm after being cut by double-cutting shear;
[0035] 2) Use CO 2 The laser is used as the welding laser source, the CO 2 The laser beam 100 directly enters the beam splitting device after exiting from the external optical path of the laser source. The beam splitting device sequentially includes a mirror 1-a beam splitter 2-a focusing mirror 3; the laser beam forms three laser beams after exiting the beam splitting device. The laser beam 101 falls before the splicing weld...
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