Advanced body plate manufacturing technology (3)
Car door inner panel
3. The utilization rate of raw materials is greatly improved
The utilization of materials is greatly improved by the selective use of high-strength, thick materials in specific parts of the structural members. Through the use of the discharge technology in the blanking process, various steel plates are reasonably combined to greatly reduce the material engineering waste rate.
4. Structural functions have been greatly improved
By using laser tailor welding technology, the rigidity of the structure is greatly improved due to the reasonable combination of the strength and thickness of the material. The corrosion resistance of the structure is also improved. The more important role of using tailor-welding technology is to improve the anti-collision performance of the structural members through the combination of thickness and strength. At the same time, in the parts with collision requirements, the use of high-strength steel or thick plates, and in low-demand parts, the use of low-strength steel or thin plate, thereby greatly improving the anti-collision ability of automotive parts.
Laser tailor welding is adapted to the need to strengthen the part to be strengthened. Through the connection of thick plate and thin plate or the connection of high-strength steel and low-strength steel, the effect of improving the safety of the car is much better than the thickness or strength of the steel plate. There is no change in the level. Compared with the conventional spot welding process, the size and shape accuracy of the stampings using the laser tailor welded blanks are greatly improved. Thereby the assembly accuracy of the vehicle body is improved. This will result in reduced vehicle noise and fewer overall assembly defects.
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