With the popularity of laser cutting technology in the field of industrial manufacturing, the quality of laser cutting has more and more profound impact on the production capacity and benefits of the vast number of equipment application customers. Therefore, the pursuit of cutting quality has attracted more and more attention from many equipment application customers. In the laser cutting process, the factors that affect the cutting quality performance include laser beam quality, laser power, cutting speed, workpiece thickness, material type, etc. in addition, the nozzle design of the cutting head and air flow control are also important factors.
The cutting head nozzle is installed at the front end of the machining head, which is helpful to control the auxiliary gas and protect the focusing lens. During the cutting process, the machined workpiece is kept at a stable distance from the nozzle to prevent splashes from bouncing back during cutting. The nozzle diameter determines the gas flow shape, gas diffusion area and gas flow rate into the notch, thus affecting the melt removal and cutting stability. The larger the air flow into the incision, the faster the speed, and the proper position of the workpiece in the air flow, the stronger the ability to remove the melt by spraying.
At the same time, the plate thickness should also be considered. The nozzle diameter has different effects on the plates with different thicknesses. When cutting 3mm thick plates, the nozzle diameter is 1.5mm, and the cutting effect is stable. In thin plate cutting, the nozzle diameter of 1.0mm makes the cutting surface thinner.
In the actual use process, when the nozzle and the laser output beam are different axes, in order to ensure the effective cutting and avoid problems such as too wide cutting seam, nozzle damage, and melting of the cutting surface, it is also necessary to adjust the center of the nozzle hole and the laser beam coaxially. The specific method is to stick the white adhesive to the end face of the nozzle outlet, adjust the laser output power to punch holes, observe whether there is a center hole on the white adhesive and the position of the center hole, Adjust the adjusting screw on the handle of the mirror cavity synchronously until the hole punched by the laser on the white self-adhesive coincides with the nozzle center, so as to confirm that the laser output center is consistent with the nozzle center.
The laser cutting machine system is generally composed of a laser, an external beam transmission assembly, a machine tool, etc. a comprehensive evaluation of the configuration of the laser cutting machine system can ensure the stable output of the laser cutting performance, which can not only be reflected in the purchase of the configuration of the cutting head nozzle. Maxsc series single-mode continuous fiber laser, with a power output of 1500W, has high-quality laser output, high power, high efficiency and long service life. Chuangxin laser starts with its excellent laser supply ability and provides customers with efficient and economical professional advisory services in laser cutting, laser welding, laser marking and other application fields.
