The reasons for the uneven or poor cutting quality in the cutting process can be summarized as the following aspects, and explained in detail in combination with relevant figures and information
First, the tool problem
The knife is not sharp:
If the tool is used for too long or is not often trimmed, it will lead to passivation of the edge and poor cutting effect. Regular inspection and replacement of cutting tools to maintain their sharpness is an important measure to ensure cutting quality.
When laser cutting composite materials such as carbon fiber, if the focus position of the tool (here should be understood as the laser beam) is not correct or the spot diameter is too large, it will also lead to uneven cutting. The focus position needs to be precisely adjusted according to the material thickness and cutting requirements.
Tool installation problems:
When the tool is installed, the gap is too large or too small, which will also lead to uneven cutting. For example, if the blade holder is not perpendicular to the blade body, or the blade is too high, the cutting quality will be affected. Therefore, it is necessary to adjust the clearance and position of the tool according to the instruction manual.
Second, the cutting parameters are set improperly
Unstable cutting speed or improper setting:
Cutting speed too fast will lead to the tool can not effectively cut the material, and too slow will easily lead to local deformation of the material, resulting in uneven results. When laser cutting carbon fiber, the choice of cutting speed is closely related to the thickness of carbon fiber and the laser absorption rate, which requires precise control.
Cutting power problem:
Laser cutting power is too large or too small will affect the cutting quality. Excessive power will lead to carbon fiber overburning, heat affected zone and slit increase. Too little power will not cut the material effectively. Therefore, the laser power needs to be adjusted according to the material characteristics and cutting requirements.
Third, material issues
Uneven material:
If the material to be cut is itself uneven, then even if the cutting machine tool is normal, there will be uneven cutting. Before cutting, the material should be smoothed, such as grinding.
Uneven material quality 1:
The uneven quality of the fiber material can also lead to uneven cutting length or poor cutting quality. When selecting materials, attention should be paid to the consistency of quality.
4. Machine problems
Poor machine stability:
The overall stability of the cutting machine is poor, such as the swing of the slider, not level, etc., will affect the cutting quality. The cutting machine should be checked and maintained regularly to ensure its stability.
Fixture and bracket problems:
The fixture is uneven or there are gaps, and the support is loose or deformed, which will lead to the unstable position of the material during the cutting process, thus affecting the cutting quality. Check and adjust the state of the fixture and bracket.
V. Other factors
Environmental factors:
Factors such as temperature and humidity in the cutting environment may also affect the cutting quality. The stability of the cutting environment should be maintained to reduce the interference of environmental factors on the cutting quality.
Improper operation:
The skill level and operating habits of the operator may also affect the quality of the cut. The training and management of operators should be strengthened to ensure that they operate in accordance with the correct operating procedures.
