How to improve the accuracy of laser cutting machine

The accuracy of the laser cutting machine often affects the quality of the cutting, and the products cut by the deviation of the accuracy of the laser cutting machine are unqualified. In the process of using the laser cutting machine, we need to consider how to improve the accuracy of the laser cutting machine. How to improve the accuracy of laser cutting machine? Generally speaking, the factors that affect the cutting quality mainly include the following aspects:

The size of the focused spot of the laser beam

The size of the spot after the laser beam passes through the focus: the smaller the spot after the laser beam is concentrated, the higher the laser cutting processing accuracy, especially the smaller the slit, the smallest spot can reach 0.01mm. The positioning accuracy of the worktable determines the repeatability of the laser cutting process. The higher the worktable accuracy, the higher the cutting accuracy. The greater the thickness of the workpiece, the lower the accuracy and the greater the slit. Since the laser beam is tapered, the slit is also tapered, and the thickness of 0.3mm material is much smaller than the slit of 2mm. The material of the workpiece has a certain influence on the accuracy of laser cutting. In the same situation, the cutting accuracy of different materials is slightly different, even if it is the same material, if the composition of the material is different, the cutting accuracy will be different.

So, how can high precision be achieved during laser cutting?

1. Focus position control technology. The smaller the focal depth of the focusing lens, the smaller the focal spot diameter, so it is very important to control the position of the focal point relative to the surface of the material to be cut. 

2.Cutting and perforating technology. Any kind of thermal cutting technology, except for a few cases, which can start from the edge of the board, generally a small hole must be drilled in the board. Earlier on the laser punching compound machine, a punch was used to punch out a hole, and then a laser was used to start cutting from the small hole.

3. Nozzle design and air flow control technology. When laser cutting steel, oxygen and a focused laser beam are shot through the nozzle to the material to be cut, thereby forming an air stream. The basic requirement for the air flow is that the air flow into the incision should be large and the speed should be high, so that enough oxidation makes the incision material fully carry out the exothermic reaction; at the same time, there is enough momentum to spray the molten material out.

uv laser | green laser | Ultraviolet lasers | uv dpss laser | nanosecond laser | UV laser source | Solid State Lasers

Laser cutting has no burrs, wrinkles and high precision, which is better than plasma cutting

Laser cutting has no burrs, wrinkles and high precision, which is better than plasma cutting. For many electromechanical manufacturing industries, because the modern laser cutting system of the microcomputer program can easily cut workpieces of different shapes and sizes (the drawing of the workpiece can also be modified), it is often preferred to the punching and molding process; despite its processing speed It is slower than die punching, but it has no mold consumption, no need to repair molds, and save time for mold replacement, thereby saving processing costs and reducing product costs, so it is more economical in general. This is why it is so popular.