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 machine.
Laser pulse energy: refers to the large output energy of a single laser pulse, in J (Joule). This is the main parameter of the laser welding machine, which determines the maximum energy that the laser can generate. According to the purpose of mold maintenance, the laser energy of less than 70J can meet the needs of any occasion. Whether it is futile energy or simply unusable, it has brought about the continuous increase of the volume of the laser power radiator and reduced the power supply efficiency.
Compared with other traditional welding machine technology, laser welding machine has the following advantages:
First of all, the laser welding machine is non-contact processing, which 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. It can be welded on the machine under special conditions (such as confined spaces).
Secondly, the laser welding machine can weld special materials, such as refractory materials of high melting point metals, and can even be used for laser welding machines for non-metallic materials such as ceramics and organic glass. It can weld special-shaped materials with good effect and flexibility. 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. Because it is not affected by the magnetic field and can be accurately positioned, it can be used in a micro welding machine, which is suitable for the assembly and welding of micro and small workpieces in large-scale automated production.