Views:8984 Author:heyu Publish Time: 2020-02-24 Origin:Site
Factors influencing the quality of carbon steel cut by metal laser cutting machine
The thickness of carbon steel cut by metal laser cutting machine is mainly determined by laser output power. Taking carbon steel as an example, 1kW metal laser cutting machine can cut 9 thicknesses (i.e. 9mm), 1.5KW can cut 19 thicknesses; while for stainless steel, 2.5kW laser cutting machine can only cut 15 thicknesses. If it is thicker, it needs to be equipped with more than 3KW high-power laser.
However, for the carbon steel plate within 10 mm, the optical fiber laser cutter below 1000 W can be used for cutting. This is because the cutting width of laser cutting is narrow, generally between 0.1 and 0.5m m; the cutting accuracy is very high, less than 0.05mm, and the distance error between the hole center is between 0.1 and 0.4mm, and the error of the contour size is also between 0.1 and 0.5mm; the cutting section is smooth, and the incision roughness is less than 25 μ M. after the workpiece is cut, it can be directly welded without further processing.
For the carbon steel plate of more than 10 mm and less than 20 mm, the CO2 laser cutting machine of about 2000 W can be selected, because the domestic fiber laser cutting machine cannot cut the steel plate of this thickness at present. But compared with wire cutting, numerical control plasma cutting and water cutting, CO2 metal laser cutting machine cutting is much more efficient and the cutting cost is much lower.
How to guarantee the cutting quality of metal laser cutting machine? This is a problem that many operators pay great attention to, but in order to solve this problem, it is necessary to understand the factors that affect the cutting quality of metal laser cutting machine. Here is a summary:
1. Material thickness - directly affects the quality of the cutter
Laser cutting is suitable for cutting thin plates. The cutting effect of carbon steel below 12mm and stainless steel below 6mm is obvious, the quality is the best, and the efficiency can also be guaranteed. For example, when the material thickness is less than 1mm, the material incision is extremely smooth.
2. Laser output power and mode - the higher the laser output power directly affects the quality of the cutting machine, the better the cutting effect on the same thickness of the plate. The higher the fit between laser cutting mode and material, the better the cutting quality.
3. Surface roughness - directly affects the quality of the cutter
Generally speaking, the smoother the material surface, the better the cutting quality. Through independent research and development, Wuhan huayucheng laser has an automatic induction system, which can automatically adjust the height of cutting head according to the different thickness of materials.
4. Focus position - directly affects the quality of the cutter
Very simple truth, the focus of laser cutting is right, the accuracy and accuracy of cutting can meet the requirements.
5. Cutting speed - directly affects the quality of the cutter
No matter what kind of material is cut by laser, if the cutting speed and the material consistency can reach the best, then the cutting effect is the best, too fast and too slow will affect the effect of laser cutting.
6. Auxiliary gas pressure and type - directly affect the quality of cutting machine
The higher the pressure is, the higher the purity of the gas is, the less the material adheres to, and the smoother the cutting port is. Different gas types lead to different cutting speed and effect. Generally speaking, the cutting speed of oxygen is the fastest, the cutting effect of nitrogen is the best, and the cutting cost of air is the lowest. leapion
The data are for reference only