With the maturity of laser marking technology, more and more companies have chosen a new type of marking equipment-laser marking machine with clear marking, high processing efficiency, simple operation, environmental protection, no consumables, and permanent marking. However, many friends do not know much about the principle and performance of laser marking machines. Recently, a netizen left a message on our company's Douyin（抖音名：佛山富蘭激光） and asked: Does laser marking damage the surface of the product?

Today, Foshan Fulan Laser will tell you whether laser marking will damage the surface of the product.

The effect of laser marking is to mark indelible marks on the surface of various materials with a laser beam. The effect of marking is to expose the deep material through the evaporation of the surface material, or to "carve" traces through the chemical and physical changes of the surface material caused by light energy, or to burn off part of the material through light energy to show the required etching Patterns, text.

The principle of laser marking processing: the laser emitted by the laser undergoes a series of treatments, and the energy is concentrated in a small range after focusing by the lens, so that the surface material is instantly melted, or even vaporized, by controlling the laser on the surface of the material. Path to form the required graphic mark.

According to different material properties (such as melting point, boiling point, temperature at which chemical changes occur), the workpiece will undergo a series of physical or chemical changes, such as melting, vaporization, oxide formation, discoloration, and so on. This is the principle of laser processing.

Laser processing mode: The focused laser is like a very thin invisible tool, which vaporizes the surface of the local area of the object point by point. It is characterized by non-contact processing, no contact with the workpiece, no mechanical extrusion or Mechanical stress, therefore, will not change the physical properties of the processed items.

Therefore, whether laser marking will damage the surface of the product depends on the material of the product, the model used, and the marking requirements. For example: glass crystal inner carving, aluminum oxide shallow blackening, some plastics are marked with a UV laser marking machine, etc. The surface of the marking is smooth, and it will not damage the surface of the product; if deep marking is required, the laser beam is like carving The knife works on the surface of the product, and the marking content will have a certain depth, which will damage the surface of the product to a certain extent, but the damage is very slight.