Sheet metal punching is usually made by punching machine, but due to its low accuracy and many burrs, punching machine is gradually eliminated. With the continuous development of laser cutting machines, more and more enterprises begin to use laser to cut round holes. Not only is the cutting section smooth, but also the aperture can be changed at any time, and the processing flexibility is very high.

However, laser cutting of circular holes is not as simple as you think. Irregular cutting of circular holes and insufficient verticality also happen from time to time. So, let's analyze the reasons and precautions for cutting round holes.

1、 The round hole is too small

The cutting ratio of the laser equipment is 1:1. The larger the aperture, the better the cutting. When the laser cutting machine with insufficient capacity cuts the small hole, the irregular round hole and too many broken points will appear.

2、 Gas pressure is too high or too low

If the gas pressure is too high, the hole will burst. If the pressure is too low, the cutting edge will be rough and the burning will be serious. Choosing the appropriate gas pressure is one of the reasons to solve the irregular round hole cutting.

3、 Servo motor parameters

Many parameters of servo motor are related to circular arc motion. Improper parameters of x and y axis motion mismatch will cause ellipse or irregular figure in cutting circular hole.

4、 The accuracy of lead screw or guide rail is not enough

The manufacturing level of cutting machine enterprises is low, which makes the precision of laser cutting machine less than 0.1mm, so the precision of round hole cutting can not meet the requirements.

Therefore, it is suggested that the quality of the laser cutting machine to be purchased can be identified by observing the laser cutting round hole. Whether the cutting accuracy, speed and other parameters meet the standard.