Steel fiber laser cutting common problems and solutions

Layered at the bottom, wrinkles appear

1. Atmospheric pressure

2. Low focus

3. Nozzle is too large

1. Reduce air pressure

2. Improve focus

3. Use a small nozzle

Small streaks appear on the section

1. Excessive air pressure

2. Cutting speed is too slow

1. Reduce air pressure

2. Speed up the cutting

There are welding slag and welding spots 

on the bottom

1. Low air pressure

2.Focus is too low

3.Small nozzle

4.Fast cutting speed

1. Increase air pressure

2. Improve focus

3. Change the large nozzle

4. Reduce cutting speed

Burnt at the bottom

1. Too much energy

2. Excessive air pressure

3. Cutting speed is too slow

2. Reduce air pressure

3. Speed up the cutting

Bad cut on the side

1. Polarized light

2. Protect the lens from dirty

3. Cutting speed is too fast

4. The nozzle is not round or the nozzle is blocked

2. Clean the protective lens or replace the protective lens

3. Reduce the cutting speed

4. Replaced nozzle

Small fine lines on the section with molten iron at the bottom

Hot metal on the surface

1. Cutting speed is too fast

2. The air pressure is too low

3. Wrong focus

1. Reduce the cutting speed

2. Increase the air pressure

3. Adjust focus

Sectional Twill

There are fine strips on the upper section of the cutting.

1. The focus is too high

2. Excessive air pressure

1. Reduce focus

2. Reduce air pressure

Horn burn

1. Round the sharp corners

2. Use cooling points

3. Use power curve

Striped hard slag hanging on the bottom

1. The focus is too high

2. Air pressure is too low

1. Reduce focus

2. Set bigger air pressure

The lower part of the section is whitish

1. The focus is too high

2. The cutting nozzle height is too low

3. Excessive air pressure

1. Reduce focus

2. Increase the nozzle height

3. Reduce air pressure

Yellowing at the bottom of the section

1. The focus is too high

1. Reduce focus

Small drop-like burrs on the bottom

1. Too fast

2. Low focus

1. Reduce the cutting speed

2. Improve focus

Corner dregs

The slit becomes wider

Rough section, blue light appears in the seam during cutting

1. The focus is too low

2. Cutting speed is too fast

3. The knife is not set

1. Improve focus

2. Reduce the cutting speed

3. Use a slow starting point for starting the knife or use a round hole at the starting point of the lead to introduce

One side or both sides are not cut well, the other side is cut well

1. Polarized light

2. Protect the lens from dirty

3. The coaxial is not good

4. The nozzle is not round

1. Check the center of the light

2. Clean or replace the protective lens

3. Check the coaxial

4. Replaced nozzle

Yellow section

1. The gas is impure

2. Air or oxygen in the trachea

1. Nitrogen purity requirement 99.99%

2. Check the gas path

3. Check delay

Light blasthole

1. Perforation frequency is too high

2. Punching power is too large

3. Too much air pressure

1. Reduce frequency by 10% each time

2. Reduce the duty cycle, 1%-2% each time

3. Reduce air pressure,0.1bar each time

Blast hole during piercing

1. Perforation frequency is too high

2. Punching power is too large

3. Too much air pressure

1. Reduce frequency by 10% each time

2. Reduce the duty cycle, 1%-2% each time

3. Reduce air pressure, 0.1bar each time

End of piercing and start cutting blasthole

1. Insufficient punch time

2. Punching power is low

1. Increase the punching time, every time

0.5sec

2. Increasethepunchingpower, 5% eachtime

3. Increase the duty cycle, every time 

1%-2%

4. Use slow start