Laser pulse energy, laser pulse frequency, laser pulse waveform, relative light absorption rate of the material to be welded, laser pulse width, laser beam spot diameter, welding speed, shielding gas and other parameters directly affect the production quality of laser welding machines.
Laser pulse energy: refers to the maximum output energy of a single laser pulse, in J (joules). This is the main parameter of the laser welding machine, it determines the maximum energy that the laser can produce. According to the purpose of mold maintenance, the laser energy below 70J can already meet the needs of any occasion. Whether it is futile energy or simply unusable, the volume of the radiator of the laser power supply has been continuously increased and the power supply efficiency has been reduced.
Compared with other traditional welder technologies, laser welders have the following advantages:
First of all, the laser welding machine is non-contact processing and will not damage the processed parts during the welding process. The welding speed is fast, the welding strength is high, the welding seam is flat, and the deformation is small. Welding can be performed on machines under special conditions, such as confined spaces.
Secondly, the laser welding machine can weld special materials, such as refractory materials with high melting point metals, and even laser welding machines for non-metallic materials such as ceramics and plexiglass. It can weld special-shaped materials with good effect and flexibility, and the non-contact long-distance welding machine can be applied to welding machine parts that are difficult to access.
Third, focus the laser beam to obtain a very small spot. Since it is not affected by magnetic fields and can be precisely positioned, it can be used in micro welding machines, suitable for assembly welding of micro and small workpieces for large-scale automated production.