There are two recognized principles:

"Thermal processing" has a high energy density of the laser beam (which is a concentrated energy flow), irradiated on the surface of the material being processed, the material surface absorbs the laser energy and produces a thermal excitation process in the irradiated area, which results in an increase in the temperature of the surface (or coating) of the material, resulting in metamorphosis, melting, ablation, evaporation and other phenomena.

"Cold processing" has a very high loading energy of (ultraviolet) photons, which can interrupt the chemical bonding of the material (especially organic materials) or the surrounding medium, to the point where the material undergoes a non-thermal process of destruction. This type of cold processing is of special significance in laser marking because it is not thermal ablation, but rather cold stripping that breaks the chemical bonds without the side effect of "thermal damage", and thus does not heat or thermally deform the inner layer of the processed surface or the surrounding area. For example, excimer lasers are used in the electronics industry to deposit thin films of chemicals on substrates and to create narrow slots in semiconductor substrates.

Comparison of different marking methods

Compared with the inkjet marking method, the superiority of laser marking and engraving lies in: a wide range of applications, a variety of substances (metal, glass, ceramics, plastics, leather, etc.) can be marked with permanent high-quality mark. No force on the surface of the workpiece, no mechanical deformation, no corrosion of the material surface.

Product application

Can engrave a variety of non-metallic materials. Used in clothing accessories, pharmaceutical packaging, alcohol packaging, construction ceramics, beverage packaging, fabric cutting, rubber products, shell nameplate, craft gifts, electronic components, leather and other industries.

It can engrave metal and many kinds of non-metallic materials. It is more suitable to be used in the processing of some products which require fine and high precision.

●Applied to electronic components, integrated circuits (IC), electrical appliances, cell phone communications, hardware products, tools and accessories, precision instruments, glasses and clocks, jewelry, automotive parts, plastic buttons, building materials, PVC pipes, medical equipment and other industries.

Applicable materials include: common metals and alloys (iron, copper, aluminum, magnesium, zinc and other metals), rare metals and alloys (gold, silver, titanium), metal oxides (all kinds of metal oxides can be), special surface treatment (phosphating, aluminum anodizing, electroplating surfaces), ABS material (electrical appliances shells, daily necessities), ink (translucent buttons, printed products), epoxy resin (packaging of electronic components. insulation layer), insulation layer of electronic components).