Industrial applications of laser drilling machines

There are many types of lasers now, mainly divided into purple light and red light. Laser drilling technology has been used in industry as early as now, which is a relatively mature laser processing technology. After many improvements, laser drilling is suitable for most materials. It can also be used for micron deep hole processing, picosecond processing, etc.

Laser drilling machinePrinciple: Laser drilling machine is based on the physical and chemical thermal effect caused by the interaction between laser and processed materials, as well as the comprehensive effect of various energy changes. Its influence changes depend on parameters such as laser wavelength, energy density, beam scattering angle, focusing state and processed materials themselves. A beam of light is irradiated on the workpiece through a focusing lens. Through the high-intensity heat source, the workpiece is acted on by the material, which absorbs energy and converts it into various forms such as thermal energy, electrical energy, chemical energy and light energy of different wavelengths, so that the processed part of the material is melted or vaporized, thereby achieving the removal of the material.

Laser DrillingProcess: Irradiate the material with a high-energy beam, and the temperature at the laser focus on the surface of the processed material rises rapidly, reaching more than 10,000 degrees Celsius in an instant. When the laser heats to a high temperature close to the evaporation of the material, the laser begins to remove the material. At this time, the material undergoes a strong phase change, and the temperature at the laser focus rises rapidly, reaching more than 10,000 degrees in an instant. Some materials are special and will not form gas evaporation, and some will be ejected. Generally speaking, laser drilling can be divided into three stages: leading edge stage, steady-state output period and trailing edge period.

Characteristics of laser:Laser drilling machineIt is suitable for small holes, narrow slits and micro-machining, and laser dense multi-hole processing is more suitable. Laser drilling is not limited to planes, but can also process inclined and unequal surface workpieces. If laser is used to assist with other workpieces, various difficult processing can be completed. For example, the combination of laser and precision CNC machine tools can allow the laser to complete the processing of certain special workpieces according to the programmed trajectory. The output power of single-beam laser drilling is very stable, and it is almost impossible to cause workpiece loss during the processing.