For beginners of fiber laser cutting machines, the cutting quality is not good and many parameters cannot be adjusted. Briefly study the problems encountered and their solutions.
The parameters to determine the cutting quality are: cutting length, cutting type, focus position, cutting force, cutting frequency, cutting ratio, cutting air pressure and cutting speed. Difficult conditions include: lens protection, gas cleanliness, paper quality, condenser lenses, and collision lenses.
When fiber laser cutting quality is insufficient, careful inspection is necessary. Key features and general outline include:
1. Cutting height (actual cutting height is recommended to be 0.8 ~ 1.2 mm). If the actual cutting height is inaccurate, it should be adjusted.
2. Check the shape and size of the cut. If positive, check for damage to the cut and for normality of the round.
3. It is recommended to use an optical center with a diameter of 1.0 to determine the cut. The light center detection position should be between -1 and 1. Therefore, the light field is smaller and easier to observe.
4. Check that goggles are clean, free of water, grease and debris. Sometimes the lenses will fog up due to the weather or the air being too cold while paving.
5. Make sure the focus setting is correct. If the cutting head is automatically focused, you need to use the mobile APP to verify that the focus is correct.
6. Change the cutting parameters.
After the above five checks are correct, adjust the parts according to the cutting mode of the fiber laser cutting machine.
How to fix parts like this, and briefly introduce the conditions and results obtained when cutting stainless steel and carbon steel.
For example, there are many types of stainless steel. If there is only slag hanging on the corners, you can think of rounding of the corners, reduced focus, increased ventilation and other things.
If the entire slag is found, it is necessary to lower the focus, increase the air pressure, and increase the amount of cutting. to harden…. If the surrounding soft crust is delayed, the cutting speed can be increased or the cutting force can be reduced.
When cutting stainless steel, fiber laser cutting machines will also encounter: slag near the cutting edge. You can check if the air source is insufficient and the air flow cannot continue.
When cutting carbon steel with a fiber laser cutting machine, problems often occur, such as thin plate parts that are not bright enough and thicker plate parts.
Generally, the brightness of 1000W laser cutting carbon steel does not exceed 4mm, 2000W6mm and 3000W8mm.
If you want to illuminate a dim part, first of all, the surface of a good plate must be free from rust, oxidation paint and skin, and then the oxygen purity must be at least 99.5%. Be careful when cutting: use a small slot for double-layer cutting 1.0 or 1.2, the cutting speed should not exceed 2m/min and the cutting air pressure should not be too high.
If you want to use a fiber laser cutting machine to cut thick plates with good quality. First, ensure the cleanliness of the plate and gas, and then select the cutting port. The larger the diameter, the better the cutting quality and the larger the cut.