Feb 08, 2020
Attention should be paid to laser cutting of high-precision circular holes. Sheet metal punching is generally used for punching, but the disadvantages of low accuracy and many burrs are gradually eliminated. With the continuous development of laser cutting machines, more and more enterprises have begun to use laser to cut round holes. Not only the cutting section is smooth, but the hole diameter can be changed at any time, and the processing flexibility is very high.
However, laser cutting of circular holes is not as simple as everyone imagines. It is not uncommon to cut circular holes with insufficient verticality. Therefore, the problem of cutting round holes will be analyzed for the reasons and precautions.
Round hole is too small
Laser equipment cutting 1: 1 holes is the best solution. The larger the hole diameter, the better the cutting. When the laser cutting machine with insufficient capacity cuts small holes, irregular round holes and excessive breakpoints remain.
Gas pressure is too high or too low
If the gas pressure is too high, the blast hole will occur. If the pressure is too small, the cutting edge will be rough and the burning will be serious. Choosing the right gas pressure is one of the reasons to solve the irregularity of round hole cutting.
Servo motor parameters
Many parameters of the servo motor are related to the arc movement. If the parameters are not suitable, the mismatch of the x and y axis movements will cause the ellipse or irregular shape of the cutting circular hole.
Inadequate lead screw or guide rail
The low manufacturing level of cutting machine companies has promoted the accuracy of laser cutting machines to less than 0.1mm, so the accuracy of round holes for cutting cannot meet the requirements.
Therefore, it is suggested that the quality of the laser cutting machine can be judged by observing the situation of the laser cutting of the round hole to determine whether the quality of the laser cutting machine to be purchased is acceptable. Whether the cutting accuracy, speed and other parameters meet the standard.