1. Laser welding body
Laser welding is the use of high energy density of the laser beam as a heat source of high precision welding method. Use of laser temperature, the molecular structure of the two steel plates disrupted, molecules to rearrange such that two molecules of the steel sheet as one solution. Because continuous laser welding as do not like the conventional welding process requires the use of welding the sheet stack edge, it is often used for welding between car manufacturers and the vehicle roof, with a beautiful, good sound insulation and sealing advantages. When
Laser welding seam only reached a sufficient length, it may exceed the tensile strength of spot welding, in other words, the influence length of the weld, weld width and other factors of the laser welding by the tensile strength, the tensile strength of spot welds is also closely related to the number and spacing of other factors, therefore the name of the process alone can not conclusive what the weak strong.
Today, laser welding has not really what the art technology, but the real deciding whether to select a laser welding process, probably depending on the manufacturer or in the body structure considerations, production line layout and update the like. Because toxic and hazardous laser welding operations are very high, the need for specialized independent and enclosed work area, so the old plant to purchase the device will face greater difficulties.
During the manufacture of the vehicle, the door portion, beam portions threshold, even tailgate section may be applied to the laser welding, it can be seen that laser welding is not advanced technology, it is only manufacturing BIW step, between a common base interconnected manner.