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Fiber Laser Cutting Machine Cutting Quality Is Not Good When The Solution

Jun 27, 2018

For the early entry of the novice, encountered poor quality of cutting will be difficult, in the face of many parameters I do not know how to adjust. The following brief description of the problems and solutions will be encountered.

Factors that affect the quality of cutting are: cutting height, cutting nozzle type, focus position, cutting power, cutting frequency, cutting duty cycle, cutting pressure and cutting speed. Hardware conditions are: to protect the lens, gas purity, sheet quality, gather mirror and collimator.

Fiber laser cutting head

When the quality of cutting is not recommended when the first general inspection, general inspection of the main contents and order of inspection:

1 cutting height (recommended the actual cutting height between 0.8 ~ 1.2mm), such as the actual cutting height is not allowed, you need to be calibrated.

2 cut mouth to check the cutting nozzle model and size is wrong, if it is correct to check whether the cut mouth is damaged, roundness is normal.

3 light heart recommended with a diameter of 1.0 cut the mouth of the heart to check, check the light when the focus is best in the -1 to 1 between. So that the light out of the small easy to observe.

4 protection lens inspection to protect the lens is clean, requiring no oil without oil no slag. Sometimes because of the weather or shop too cold and other reasons lead to the protection of the lens fog.

5 Focus Check whether the focus is set correctly. If it is automatically cut the cutting head must use the phone APP to see whether the focus is correct.

6 Modify the cutting parameters

More than five is checked and no problem, then according to the phenomenon of targeted changes to the parameters.

How to adjust the parameters according to the phenomenon, the following brief description of cutting stainless steel and carbon steel will encounter the state and solution.

Such as stainless steel slag, hanging slag type has a variety. Such as corner only hanging slag can be considered corner round, the parameters can reduce the focus, increase the pressure and so on.

Such as the overall hanging slag, need to reduce the focus, increase the pressure, increase the cutting mouth, but the focus is too low or too much pressure will lead to cross-section stratification and rough surface. If the whole hanging particles of soft residue may be appropriate to increase the cutting speed or reduce the cutting power.

Cutting stainless steel may also encounter: cutting the end of the end of the dross, you can check whether the gas supply gas flow cannot keep up.

Cutting carbon steel will generally encounter: thin section is not bright enough, rough plate rough and other issues.

In general, the 1000W laser cannot cut more than 4mm carbon steel, 2000W is 6mm, 3000W is 8mm.

laser cutting headd

Want to cut the section of the first bright cut the surface of a good surface without rust and no paint without oxide, followed by oxygen purity of at least 99.5% above the need to pay attention to the cutting: with a small cut mouth double 1.0 or 1.2, cutting speed Too fast need more than 2m / min, cutting pressure should not be too large.

Want to cut the cross-section of good quality, first of all, to ensure that the plate and gas purity is the second choice of cutting mouth, the greater the quality of the cross-section will be better, but at the same time, the taper will be greater.