Debugging Method of Fiber Laser Cutting Ultra-thick Plate
Publish Time: 2022-07-13 Origin: https://www.leapion.com/
In recent years, the 10000watt Laser Cutting Machine has gradually gained popularity and application in the domestic sheet metal processing market due to its "high efficiency and high quality." However, there aren't many technicians who are familiar with the 10000-watt laser cutting machine and processes right now. They frequently encounter issues such as rough cutting surface and slag hanging, particularly when it comes to thick plate cutting.
Leapion Laser engineers are constantly studying the application of 10000-watt lasers, and they accumulate a huge amount of experience and capabilities in 10000-watt laser cutting. They have also developed a series of solutions to problems that may arise during thick plate cutting.
1. Carbon steel thick plate cutting process debugging methods
1.1 Refer to the "Cutting Process Parameter Table" for different powers of 10,000-watt lasers source, first debug the brightest surface of the thickest carbon steel and stabilize the process of the thickest carbon steel effect (You can contact online customer service on Leapion Website to get the parameter table);
1.2 After the effect and efficiency meet the requirements, adjust the perforation process parameters;
1.3 After the cutting and perforation processes have been calibrated, small batches of the product need to be cut to ensure consistency of the process and effect.
Carbon steel cutting and debugging common problems and solutions | ||
Thickness and effect | Problems | Solution |
25mm bright 30mm bright surface 40mm frosted surface | The cutting nozzle is hot | Increase nozzle size |
The lens is dirty and needs to be cleaned. | ||
Reduce cutting positive focus | ||
Rough cut surface | Raise cutting positive focus | |
Reduce nozzle size | ||
Reduce cutting gas pressure | ||
Increase cutting speed | ||
Cutting surface with slag | Inappropriate cutting speed | |
Increase cutting air pressure | ||
Inappropriate cutting focus | ||
Inconsistent cutting surfaces | The nozzle outlet is not round, replace the nozzle | |
The laser is not in the center of the nozzle, adjust the light in the center | ||
Form 1
Figure 1
2. Stainless steel thick plate cutting process debugging methods
2.1 Refer to the "Cutting Process Parameter Table" for different power lasers source, and firstly debug the cutting effect of stainless steel with different thicknesses.
2.2 After the effect and efficiency meet the requirements, adjust the perforation process parameters;
2.3 After the cutting and perforation processes have been calibrated, small batches of the product need to be cut to ensure consistency of the process and effect.
Stainless steel cutting and debugging common problems and solutions | ||
Thickness and effect | Problems | Solution |
6mm: no slag 20mm: spot slag | Cut layered | Reduce cutting speed |
Increase cutting air pressure | ||
Increase nozzle size | ||
Inappropriate cutting focus | ||
Cutting surface with slag | Inappropriate cutting speed | |
Increase cutting air pressure | ||
Reduce cut negative focus | ||
Cutting efficiency slow | The lens is dirty, replace the lens | |
Increase cutting air pressure | ||
40mm：A small amount of slag | Cut layered | Reduce frequency |
Raise positive focus | ||
Increase cutting air pressure | ||
The cut surface is yellow | Reduce duty cycle | |
Raise positive focus | ||
Increase cutting air pressure | ||
Form 2
Figure 2
3. Method for testing cutting stability
In order to ensure the stability of the equipment during the batch processing and the quality of the processed products, it is necessary to do a stability test before the formal batch processing.
Test method for cutting stability | |||
Test material | 6-10mm stainless steel | Test pattern | spiral line |
Test time | 5-10min | Test gas | nitrogen |
Test method | Adjust the stainless steel cutting parameters to ensure that the cutting surface is free from slag and delamination | ||
Continuous cutting at full power for 5-10min, check whether the cutting surface is consistent | |||
If there is a gradual increase in slag, the blue light will appear, and can't cut through, etc. It means that the cutting focus is shifted, and the cutting head lens should be checked (the lens is dirty, there is a thermal lens problem due to the lens quality is poor), and the focus position. | |||
Form 3
Figure 3