Why laser uv 355 nm is not suitable for processing metal materials

The main application range of UV laser marking machine is in ultra-fine marking and engraving, because it uses a 355nm UV laser. Due to the small focus spot, the processing of components is more precise, such as plastics, circuit boards, packaging bags , glass, electronic components and other thin parts for marking. Why is such a powerful laser not suitable for processing metal materials?

Fiber laser marking machine metal marking

Ultraviolet laser marking machine is not suitable for metal materials because its focused beam is small, and the effect of marking is not as good as that of fiber laser marking machine. The power of fiber laser marking machine can be several times that of ultraviolet laser marking machine. , In thick materials such as metal, the cutting strength and thickness are just right. Simply put, the beam power of the UV laser marking machine is not as high as that of the optical fiber, and the penetrating power is not strong enough, and the marking effect on the metal material is not good.

UV laser marking machine PCB marking

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But it's not because this makes the UV laser marking machine worthless? There are specialties in the art industry. Laser processing on precision components is also not suitable for optical fiber marking machines. Too high power and temperature can easily cause damage or even burn out such components. Ultraviolet lasers have shorter wavelengths than visible light, so they are invisible to the naked eye. Although you cannot see these laser beams, it is these short wavelengths that allow ultraviolet lasers to focus more precisely, resulting in extremely fine circuit characteristics, while at the same time, It also maintains excellent positioning accuracy.