Aluminum alloy has the advantages of low density, high strength and good corrosion resistance, so it is widely used in the automotive industry, new energy, aerospace and construction industry. At present, laser welding has been widely used in the production and manufacturing of aluminum alloy products. Compared with the traditional welding method, laser welding can provide higher production efficiency, better weld quality, and realize the high-precision welding and automation of complex structures.
Laser welding is a technology that radiates high intensity laser onto the surface of metal, melts metal and then cools and crystallizes it to form weld through the thermal coupling between laser and metal. According to the thermal action mechanism of laser welding, it can be divided into two kinds: thermal conductive welding and deep penetration welding. Thermal conductive welding is mainly used in packaging welding of precision parts or micro-nano welding. Laser deep penetration welding is mainly used in the welding of materials that need complete penetration. The welding process will make the material vaporize, and the keyhole phenomenon will appear in the molten pool. It is the most widely used laser welding method at present, and it is also the preferred method for aluminum alloy welding.
Post time: Mar-17-2023