Processing method for welding of high-tension aluminum silicon coating plated steel plate and splicing structure thereof

Abstract

The invention discloses a processing method for welding of a high-tension aluminum silicon coating plated steel plate. The surface of a to-be-welded steel plate is coated with an aluminum silicon alloy layer. The processing method is characterized in that a part of the aluminum silicon alloy layer on the surface of the to-be-welded steel plate is peeled along a welding edge through laser beams; and the removed part of the aluminum silicon alloy layer takes up 90% to 95% of the original aluminum silicon alloy layer. According to the processing method, through maintaining a part of the aluminum silicon alloy layer, the production cost and daily maintenance cost are greatly reduced under the condition that the performance of a base material is not influenced, the processing difficulty is reduced, and the processing efficiency is improved.

Description

technical field [0001] The invention relates to a steel welding technology, in particular to a processing method for welding high-tensile aluminum-silicon-coated steel plates and a splicing structure thereof. Background technique [0002] In some manufacturing industries, steel components with high mechanical strength, high impact resistance and excellent corrosion resistance are required, especially in the automotive industry. Aluminum-coated steel sheet, also known as aluminum-coated steel sheet, is an aluminum-silicon alloy-coated steel sheet with good heat resistance, heat reflection, and corrosion resistance. Its mechanical and physical properties are superior to those of cold-rolled steel sheets. widely used material. [0003] To improve the fuel efficiency of automobiles, one of the methods is to reduce weight. There are many ways to reduce weight, such as using high-tensile steel plates, tailor-welded blanks, or tailor-welded high-tensile steel plates. By splicing ...

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Problems solved by technology

[0007] (2) Simultaneous processing of the front and back sides requires two lasers. The price of two lasers with an average output power of 450W and the precise optical instrument for real-time measurement of the reflected light intensity of the alloy layer are all valuable equipment, which greatly increases the production cost.

[0008] ⑶. The optical lens is most afraid of dust. A little dust will affect the measurement results and affect the stripping effect of the coating. Therefore, the daily maintenance cost of optical instruments is also quite large.

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