The Machining Accuracy Of Laser Cutting Machines

Laser cutting accuracy is an important factor to measure the quality of a fiber laser cutting machine. The four major elements that affect the accuracy of laser cutting machines. Errors in processing dimensions are often encountered when using laser cutting machines for processing. This fault not only affects Increased production efficiency and increased production costs. In fact, the accuracy of metal laser cutting machine is not entirely determined by the equipment itself, but is composed of many factors.

Four major elements that affect the accuracy of laser cutting machines

1. The size of the laser condensation of the laser generator: if the light spot is very small after the aggregation, the cutting accuracy is very high, and the gap after cutting is also very small. It means that the precision of the laser cutting machine is very high and the quality is very high. But the beam emitted by the laser is tapered, so the slits cut out are also tapered. Under this condition, the greater the thickness of the workpiece, the lower the accuracy, and therefore the larger the kerf.

2. The accuracy of the workbench: if the accuracy of the workbench is very high, the cutting accuracy will also be improved. Therefore, the accuracy of the workbench is also a very important factor to measure the accuracy of the laser generator.

3. The laser beam is condensed into a cone: When cutting, the laser beam is downward in a cone. At this time, if the thickness of the workpiece to be cut is very large, the cutting accuracy will be reduced, and the cut out gap will be very large.

4. Different cutting materials: Even if it is the same material, if the composition of the material is different, the cutting accuracy will be different. Therefore, the workpiece material also has a certain influence on the laser cutting accuracy.

The metal laser cutting machine is realized by applying the high power density energy generated by the laser focusing. It adopts precision ball screw transmission mechanism and optimized numerical control system control, which can meet the processing of precision parts, and has stable dynamic performance and can work for a long time. Therefore, it has attracted much attention in metal cutting. The cutting accuracy of metal can affect the cutting process.

Methods to improve cutting accuracy:

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

Advantage

1.The light spot is small, the energy is concentrated, and the heat affected area is small.It does not touch the workpiece and does not pollute the workpiece. It has no electromagnetic interference and is easier to apply than electron beam machining. The laser beam is easy to focus and direct for automatic control.

2. Safe and reliable: Non-contact processing will not cause mechanical extrusion or mechanical processing to the material.Precise and meticulous: The machining accuracy can reach 0.1 mm,Consistent effect: The processing effect of the same batch is almost the same.

3. High-speed and fast: According to the graphics output by the computer, high-speed engraving and cutting can be performed immediately, and the speed of laser cutting is much faster than that of wire cutting Low cost: Not limited by the number of processing, laser processing is cheaper for small batch processing services.

4. Fine slit: The laser slit is generally 0.1-0.2 mm,

     Smooth cutting surface: There is no burr on the laser cutting surface.

     Small thermal deformation: The laser slit of laser processing is thin, fast, and energy is concentrated. The heat transferred to the cut material is small, and the deformation of the material is also very small.

It is suitable for the processing of large-scale products: the mold manufacturing cost of large-scale products is high, and laser processing does not require mold manufacturing.

Laser processing completely avoids the collapse of the material during stamping, which can greatly reduce the production cost of enterprises and improve product grades.

Material saving: Laser processing adopts computer programming, which can cut products of different shapes into multiple sets of materials, maximize the utilization of materials, and greatly reduce the material cost of enterprises.