With the significant increase in demand for consumer electronics industry, product miniaturization, fast speed and high parts prices, traditional processing methods can not meet customers’ higher requirements for precision and yield, so laser cutting technology came into being. With the gradual maturity of the technology of ultraviolet laser cutting machine, the application is becoming more and more popular, making the application of laser to a broader field.
After the laser is focused, it shines on the material, causing the temperature of the material to be cut to rise rapidly, and then melting or vaporizing. With the relative motion of the laser and the material to be cut, a slit is formed on the cutting material to achieve the purpose of cutting. UV laser cutting machine is usually selected when cutting more sophisticated materials, and YAG and CO2 laser cutting machine through the thermal effect to cut different, UV laser cutting machine is directly destroy the chemical bond of the processed material, so as to achieve the purpose of cutting, this is a “cold” process, the heat affected area is small; In addition, ultraviolet laser has short wavelength, concentrated energy and small slit width, so it has a wide range of applications in the field of precision cutting and micro-machining.
The slit width of laser cutting is directly related to the beam mode, polarization and the diameter of the focused spot. TEM00 mode is used in the actual cutting, circular polarization, but the laser mode is usually not an ideal fundamental mode, and will change when the power is increased or the use time is too long. Ideally, cutting can be achieved within the diameter range of the laser spot, and the slit width is equal to the diameter of the spot if it does not interact with the material outside the range. However, in practice, due to the thermal conductivity, melting point, boiling point and other parameters of the material, as well as the change of laser power, the slit width is not equal to the spot diameter, and their relationship depends on the input of laser energy and the properties of the material. However, in most cases, the slit width is slightly larger than the spot diameter, and reducing the spot diameter reduces the slit width. Thus the cutting size error is reduced and the cutting precision is improved.
Men-luck specializes in laser cutting equipment, including laser cutting machine, laser welding machine, laser marking machine. Support sample proofing, can be customized according to customer product needs. Welcome to contact us for consultation.
Post time: Apr-25-2024