The principle of a laser engraving machine is a mechanical device that uses a laser beam to etch on the surface of materials. It controls position and intensity of the laser beam, focusing it on specific areas of the material’s surface, causing it to heat up. This leads to chemical or physical changes the local area, achieving the purpose of engraving.
The main components of a laser engraving machine include a laser, laser head, control system, and work. The laser is the core component of the laser engraving machine, converting electrical energy into laser energy to produce a high-energy laser beam. The laser head is for transmitting and focusing the laser beam on the material’s surface. The movement of the laser head can control the position and path of the laser beam. The control is responsible for controlling the parameters and trajectory of the entire engraving process, controlling the movement of the laser head according to the pre-designed pattern. The worktable the platform for placing the object to be engraved, and its height and position can be adjusted to control the position and distance the laser beam reaches
The core principle of laser engraving machines lies in utilizing the thermal effect of laser beams. When a laser beam illuminates the surface of material, the high energy of the photons in the laser beam can interact with the material, causing the temperature of the local area to rise. Once the temperature of material reaches a certain level, chemical or physical changes occur on the surface, resulting in the desired engraving effect. For instance, metal materials can undergo oxidation,aporation, or melting under the action of a laser beam, thereby forming different patterns or texts.
The advantages of laser engraving machines lie in their high precision, speed, and non-contact nature. Due to the small diameter and high energy density of the laser beam, fine engraving can be performed in a small area, high-precision patterns or texts. Meanwhile, laser engraving machines operate at a high speed, significantly enhancing production efficiency. Additionally, since the laser engraving process not involve contact with the surface of the object, it avoids the potential damage or deformation that can occur during mechanical engraving, making it suitable for engraving various such as metal, glass, ceramics, and plastics.