QCW is a quasi continuous fiber laser that controls the continuous fiber laser in a pulse controlled manner to obtain the high peak power and laser energy of the pulse laser, as well as the excellent beam quality of the fiber laser, achieving the best welding effect. QCW quasi continuous laser welding machine is mainly used for welding precision products such as automotive parts, pressure vessels, medical equipment, consumer electronics, sensor components, aerospace, new energy lithium batteries, fuel cells, etc.