How to Deal with the Poor Cutting Quality of Fiber Laser Cutting Machine?

Fiber laser cutting machine is a kind of laser cutting method that uses a fiber laser generator as the optical source.

In fact,fiber laser is a new type of laser beam  in the world.

It outputs a high-energy-density laser beam which focuses on the surface of the workpiece, melting and vaporizing the area illuminated by the ultra-fine focal spot.

Then the spot is moved by the numerical control mechanical system to achieve automatic cutting with high speed and high precision.

For beginners who are new to the fiber laser cutting machine, they will meet with trouble when encountering poor cutting quality.

So how to adjust the machine in the face of numerous parameters?

Let’s have a look at the solution!

Actually,the parameters that can affect the cutting quality.

It includes cutting height, cutting nozzle model, focus position, cutting power, cutting frequency, cutting duty cycle, cutting pressure and cutting speed.

Hardware conditions include: protective lens, gas purity, sheet metals quality, focusing mirror and collimating mirror.

In the case of poor cutting quality, it is recommended to conduct a general inspection on the fiber metal cutting machine first.

The main inspection content and orders of fiber ;aser cutting machine

Firts of all,Cutting height

Normally,we recommand the actual cutting heightis  to be between 0.8-1.2mm.

If it is not accurate, then u require calibration.

Secondly,Nozzle inspection

Then ,Check whether the nozzle model and size are wrong.

If it is correct, check if the cutting nozzle is damaged, or if the roundness is normal.

Thridly,Optical center

In fact,we recommand to use a cutting torch with a diameter of 1.0mm for optical inspection.

When checking the optical center, the focus is preferably between -1 and 1mm.

The light spot thus produced is small and easy to observe.

Furthly,Protective lens

besides,check whether the protective lens is clean and free of water, oil and slag.

Sometimes the lens is fogging because of the weather or the cold auxiliary air.

Fifthly,Focal point

Check whether we set the focal point correctly.

If it is an auto-focusing cutting head, be sure to check if the focus is correct.

After u check the above 5 item and there are no problems happening, the u should modify parameters according to the cutting effect.