Automatic laser welding machine is a welding technique used to join pieces of metal or thermoplastics through the use of a laser. The beam provides a concentrated heat source, allowing for narrow, deep welds and high welding rates.

Lasers produce a highly concentrated heat source, capable of creating a keyhole. Consequently, laser welding produces a small volume of weld metal, and transmits only a limited amount of heat into the surrounding material, and consequently samples distort less than those welded with many other processes.

The aerospace, military and defense, electronics, lab research, medical and petrochemical industries use Automatic laser welding machine，because it is a fast process that offers minimized heat input and deep penetration abilities.Delivering a focused heat source, laser welding creates a strong seam at a high speed. The processes and applications of laser welding are most prominent in the automotive industry, where lasers boost productivity at a low cost when welding automotive parts – such as roof , door or filter assemblies together.