How to buy the right Fiber Laser Welding Machine

Tips for purchasing fiber laser welding machine

1. The energy of a laser pulse refers to the maximum output energy of a single laser pulse, in joules. With a certain power, the higher the energy of a single laser pulse, the lower the emission frequency. The energy of the laser pulse is a main parameter of the laser, which determines the maximum energy that the laser can produce.

2. The focus diameter of the laser spot is an extremely important parameter that reflects the design performance of the laser. The unit is millimeter, which determines the power density and processing range of the laser. Generally, the laser equipment of the manufacturer only wants to reduce the cost. The laser device is simple in processing and the design is not rigorous, which makes it difficult to focus accurately. This causes the actual laser irradiation area to be too large and the phenomenon of ablation of the weld seam occurs. This phenomenon is very important for processing. The impact of materials is particularly serious, and sometimes even make molds scrapped.

3. The frequency of laser pulses reflects the ability of the laser to produce pulses in one second, and the unit is hertz. Take metal welding as an example. Welding metal uses the energy of the laser. In the case of constant laser power, the higher the frequency, the smaller the energy output of each laser. Therefore, we need to ensure that the energy of the laser is sufficient to melt the metal. In the case of, considering the processing speed, the output frequency of the laser can be determined.

4. When selecting the laser power waveform, generally speaking, under the condition of inputting the same laser energy, the wider the pulse width, the larger the welding spot; the higher the peak power of the laser power waveform, the deeper the welding spot.