The difference between cold working and hot working of laser marking

There are mainly two types of laser marking machines, one is cold processing and the other is thermal processing. These two processing technologies are mainly aimed at different materials. Generally, thermal processing is aimed at the metal industry, and can be processed for the plastic industry that cannot be heated. .

Laser marking machine cold processing: cold processing is generally used on green light marking machines and ultraviolet laser marking machines. Cold processing is a new high-tech that has only come out in recent years. It mainly irradiates the surface of the workpiece through a high-energy-density laser beam. , The surface of the material absorbs laser energy, causing non-thermal damage to the material. Because it is cold working, it will not cause problems such as burning, black edges, and deformation to the workpiece.

Thermal processing of laser marking machine: The high-energy laser beam used in thermal processing irradiates the surface of the workpiece, causing a thermal reaction in the irradiated area, so that its temperature rises to achieve burning, dissolution, evaporation and other phenomena, so as to achieve our final predetermined Target effect, this type is mainly used in fiber laser marking machine, co2 laser marking machine, semiconductor laser marking machine.

Regardless of the cold processing or hot processing method used, the contribution of laser marking machine to industrial marking is irreplaceable. The graphics and text of laser marking machine marking are of high quality, permanent, inorganic pressure processing, no consumables, no pollution, The advantages of no noise and the realization of assembly line production make it an indispensable member of industrial processing, especially in today's electronic and electrical industry, the traditional marking method is easy to fade and wipe off, which may lead to not knowing what this product is. Such as re-testing requires a lot of manpower and material resources, laser marking machines are destined to replace traditional marking methods