10 common problems and solutions in laser cutting carbon steel plate Archives

Carbon steel cutting by fiber laser cutting machine-Eliza

Carbon steel cutting by fiber laser cutting machine

For carbon steel cutting, generally, will burn the material. Possible reasons as below.

(1) The laser focus position is offset, and the focus position test is performed, and the offset is adjusted according to the offset of the laser focus.

(2) The output power of the laser is not enough. It is necessary to check whether the work of the laser generator is normal. If it is normal, observe whether the output value of the laser control button is correct, if it is not adjusted properly.

(3) The cutting line speed is too slow, and it is necessary to increase the line speed during operation control.

(4) The cutting gas is not pure enough to provide high quality cutting working gas

(5) The instability of the machine tool running time is too long. At this time, it needs to be shut down and restarted.

Laser not completely cut

The reason why the laser is not completely cut.

(1) The selection of the laser nozzle does not match the thickness of the processing plate, and the nozzle or processing plate is replaced.

(2) The laser cutting line speed is too fast, and the operation control is required to reduce the line speed.

Abnormal sparks when cutting low carbon steel.

When the low carbon steel is cut normally, the fire bouquet is long, flat, and has fewer splits. The occurrence of abnormal sparks will affect the smoothness and quality of the cut section of the work piece.

In this case, if other parameters are normal, the following should be considered.

Firstly,The laser head nozzle has serious loss, and the nozzle should be replaced in time.

Secondly, In the case of no new nozzle replacement, the working gas pressure should be increased.

Thirdly, If the thread at the joint between the nozzle and the laser head is loose, the cutting should be suspended immediately, check the connection state of the laser head, and re-thread the thread.

Finally,if you want to know some details,contact us.

And also,if for more questions just let us know.
Eliza from XT LASER
Email: lasermachine01@xtlaser.com
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Today’s theme is the high-frequency word in laser cutting-carbon steel. It is also widely used in industrial production and processing.

We often say: under normal cutting conditions, the effect of cutting carbon steel (as shown below) should be no slag on metal edge, The cutting lines are in line.

But the actual operation of improper debugging, 90% of the problem , here also give us the solution of these problems, only for the reference to exclude, adjust.

1.The bottom of the traction line has a large offset, the bottom of the incision is wider

Possible causes

(1) The feed rate is too high

(2) laser power is too low

(3) Low air pressure

(4) The focus is too high

>>>>

solution

(1) Reduce feed rate

(2) Increase laser power

(3) Increase air pressure

(4) Reduce focus

2.The burr on the underside is similar to that of molten slag and is easily removed by drip.

Possible causes

(1) The feed rate is too high

(2) Low air pressure

(3) The focus is too high

>>>>solution

(1) Reduce feed rate

(2) Increase air pressure

(3) Reduce focus

3。The metal burr that is connected together can be removed as a whole block.

Possible causes

The focus is too high

>>>>solution

Reduce focus

4.Metal burrs on the underside are hard to remove.

Possible causes

(1) The feed rate is too high

(2) Low air pressure

(3) Gas impure

(4) The focus is too high

>>>>solution

(1) Reduce feed rate

(2) Increase air pressure

(3) Use of purer gases

(4) Reduce focus

5.Only Burr on the side of the plate incision.

Possible causes

(1) Incorrect nozzle alignment

(2) Defective nozzle mouth

>>>solution

(1) The middle nozzle

(2) Changing nozzle

6.The material is discharged from above

Possible causes

(1) Low power

(2) The feed rate is too high

(3) Improper use of auxiliary gas or gas impassability

>>>>solution

Immediately press the pause button to prevent the slag from splashing onto the laser protection lens. Then increase the power and reduce the feed rate. Check the use of auxiliary gas is correct, and reasonable adjustment correction.

7.metal not cut through

Possible causes

(1) Processing gas error (N2)

(2) The feed rate is too high

(3) Low power

(4) Improper use of auxiliary gas or gas impassability

>>>>solution

(1) Press the pause button immediately to prevent the molten slag from splashing onto the laser protection lens.

(2) Use of oxygen as a processing gas

(3) Reduce feed rate increase power

(4) Check the use of auxiliary gas is correct, and reasonable adjustment correction.

8.Cutting surface is not precise