What Is The Difference Between Laser Marking Cold Processing And Hot Processing?

Jul 27, 2020
What Is The Difference Between Laser Marking Cold Processing And Hot Processing?

Thermal processing uses a high-energy density and concentrated laser beam to irradiate the surface of the processed material (metal, plastic, marking, etc.). The surface of the material absorbs the laser energy and generates a thermal excitation process in the irradiated area, thereby making the material The surface (or coating) temperature rises, resulting in phenomena such as metamorphosis, melting, ablation, evaporation, etc., and finally the preset marking effect is formed. Because high temperature is used to achieve the desired effect, it is called thermal processing


Cold processing photons (ultraviolet, green light) with high load energy can modify the material or the surrounding medium to cause the material to undergo non-thermal process damage. Because the low temperature is used, the thermal ablation temperature of the bottom of the box is lower, so there is no "thermal damage" side effect to achieve cold peeling, so there is no heating or thermal deformation on the inner layer and nearby areas of the processed surface


Whether it is laser marking machine hot processing or cold processing technology, it is the processing of the surface layer of the material. It can achieve permanent high-quality and fine marking effects for various substances and metals, and it uses a pressureless processing method, not to mention Will cause damage to the processed products, so advanced laser marking technology gradually replaces traditional marking equipment, and is preferred in the electronics, circuit board and other industries