Optimizing Parameters for Air Cutting Carbon Steel

(Summary description)

Categories:Technology center
Author:JIatai Laser
Origin:
Time of issue:2024-08-03 16:03
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If you're experiencing poor results with lots of burrs while air cutting carbon steel, it's likely that your parameters are not set correctly. Today, we'll guide you through optimizing these parameters.

Let's take an example of cutting 16mm carbon steel with a 20,000-watt laser. We'll share insights from Jiatai's experienced technicians.

First, we need to select a basic parameter. Using a 20,000-watt parameter table, the speed range for air cutting carbon steel is 5-6m/min, with a focus of -4. We start with a speed of 5m/min and a focus of -4 for our initial cutting test. The results show large burrs at the bottom and some burrs hanging on the sides.

Next, we adjust the focus to be shallower, setting it to -3, and conduct another cutting test. The results show even larger burrs at the bottom and severe sloping at the bottom sides with more slag hanging, indicating that a focus of -3 is worse than -4. Therefore, the focus cannot be any shallower.

Then, we deepen the focus to -5 and perform the cutting test again. The results show significant improvement in the bottom burrs, and the side performance is also better, indicating that a deeper focus is the right direction. We continue testing with a focus of -6 and -7. We find that the bottom results for -5 and -6 are similar, but at -7 the burrs worsen, indicating that too deep a focus is also not beneficial. Thus, the optimal focus is between -5 and -6.

Next, we test increasing the cutting speed to find the best speed for the equipment. Using a focus of -5, we increase the speed from 5m/min to 6m/min, and the results are similar, showing some improvement in speed. We then increase the speed to 6.5m/min, but find it clearly cannot cut through. Therefore, for air cutting 16mm carbon steel with this equipment, the optimal parameters are a speed of around 6m/min and a focus of -5. For stable, batch cutting, we recommend a speed of 5.5m/min and a focus of -6.

In summary, the impact of the cutting focus on the cutting results is as follows: if there is slag hanging at the bottom of the cut surface and the bottom of the part, the focus is too shallow; if the cut surface is relatively clean and the burrs are lying on the bottom of the part, the focus is too deep. Once the correct cutting focus is found, increase the speed until the cut is not complete to find the optimal parameter settings.

We hope these operational insights help you achieve better results in air cutting carbon steel!

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