At present, many companies are using metal fiber laser cutting machines. So, in the actual use process, what factors will affect the cutting quality? Hua Xiaobian introduce to everyone:
Quality influencing factors
Laser output power and mode
The higher the laser output power, the better the cutting quality is on the same thickness of plate. The higher the laser cutting mode fits the material, the better the cutting quality.
Material of work piece
The effect of fiber laser cutting machine for different materials is different, the characteristics of different metal materials are different, and the absorption of laser heat is also different. Common stainless steel, carbon steel, iron plate and other materials absorb heat quickly. The quality of the cut is also high, and the opposite highly reflective material (aluminum, copper) is more difficult to cut. At the same time, the thickness and surface smoothness of the workpiece will also affect the cutting quality.
Metal fiber laser cutting machine 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 be guaranteed. In addition, in general, the flatter the surface of the material, the better the quality of the cut.
Selection of focus position
It is very important to determine the corresponding position of the focus and the surface of the material before the fiber laser cutting machine, which is directly related to the quality of the cutting. The power at the focal point is the highest, and most of the time, the position of the focal point is on the surface of the cutting material. When the focal point is in the best position, the slit is the smallest, the most efficient, and the best cutting speed can obtain the best cutting result.
Cutting processing speed
The effect of cutting speed on quality is very direct. If the speed of the fiber laser cutting machine is too fast, it is easy to cause the material to be cut off. If the speed is too slow, it will cause the residue of cutting slag and the phenomenon of burning. Therefore, we need to adjust the parameters according to the actual thickness of the workpiece to test cutting to achieve the best cutting speed.
Auxiliary gas pressure and type
The air pressure of the auxiliary gas also has a certain effect on the cutting quality. When using a laser cutting machine to cut some metal sheets at high speeds, a high gas pressure is generally required to prevent slag from hanging on the back of the cut. If the thickness of the material increases or the cutting speed decreases, then the pressure of the auxiliary gas should be reduced, and in order to prevent the cutting edge from oxidizing, the appropriate gas pressure should also be adjusted.
The main cutting advantages of fiber laser cutting machine
1. High cutting accuracy:
Laser cutting machine positioning accuracy is 0.05mm, repeat positioning accuracy is 0.03mm.
2. Narrow slit:
The laser beam is focused into a small light spot, which makes the focal point reach a very high power density. The material is quickly heated to a degree of vaporization and evaporated to form a hole. With the relatively linear movement of the light beam and the material, the hole continuously forms a very narrow slit. The width of the incision is generally 0.10-0.20mm.
3. The cutting surface is smooth:
The cutting surface has no burrs, and the roughness of the cut surface is generally controlled within Ra6.5.
4. Fast cutting speed:
The cutting speed can reach 10m / min and the maximum positioning speed can reach 30m / min, which is much faster than the speed of wire cutting.
5. Good cutting quality:
Non-contact cutting, the cutting edge is little affected by heat, there is basically no thermal deformation of the workpiece, and the slump formed during the punching and shearing of the material is completely avoided. The cutting seam generally does not require secondary processing.
6, does not damage the workpiece:
The laser cutting head does not come into contact with the surface of the material, ensuring that the workpiece is not scratched.
7, not affected by the shape of the workpiece:
Laser processing has good flexibility, can process arbitrary graphics, can cut pipes and other special profiles.
8. Save mold investment:
Laser processing requires no mold, no mold consumption, no need to repair the mold, saving mold replacement time, thereby saving processing costs, reducing production costs, and is especially suitable for processing large products.
9. Save material:
Computer programming can be used to cut products of different shapes to maximize the utilization of materials.
10. Increase the speed of sample shipment:
After the product drawing is formed, laser processing can be performed immediately, and the new product can be obtained in the shortest time.
11. Safety and environmental protection:
Laser processing has less waste, low noise, clean, safe and pollution-free, which greatly improves the working environment.
I will introduce this to everyone today. If you have any questions or needs, please 二人麻将. We will return your trust with high-quality materials, excellent quality, and fast and accurate delivery time. The company respects and cherishes our high-quality customers, and sincerely hopes to cooperate with customers inside and outside the province and their counterparts, go hand in hand, and create a brilliant future!