Laser welding: Laser welding: Mission principle: The application of high-energy laser pulses to the local heating of large areas of data advancement, the energy of the laser radiation is distributed to the outside of the data through the heat conduction, melts the data to form a specific molten pool, cooling and crystallization Welds.

Advantages: Concentrated heat source, no electrode, no pollution, small joints HAZ Defects: precise welding position; rapid weld seam condensation, prone to blowholes, expensive laser equipment, high cost.