Why is the laser cut hole not round?

The flatness detection of the optical fiber line non-metal laser cutting machine is to test the flatness of the track and the flatness of the mechanical equipment. The main parameters of the AC servo motor are wrong. In fact, many of the main parameters of AC servo motors are related to electric fitness movements. Incorrect key parameters can cause laser cut holes to be oval or arc-shaped. The lead screw is not accurate enough. Some manufacturers are not strict in manufacturing and fail to meet the requirements, or there are residues that damage the lead screw, which may endanger the accuracy. Therefore, the mechanical equipment should also be maintained in time, the sediment should be removed, and the grease should be re-added to ensure the accuracy of the mechanical equipment and prolong the service life. During the whole process of standard air pressure purging and inspection, if the standard air pressure is too small, slag, carbonization and roughness will occur. If the working pressure of the standard air pressure is too high, it is easy to explode.

Generally, there are two levels of circular non-circular laser cutting, the first level is that the gantry axis is not vertical, and the other reason is that the XY axis AC servo motors do not maintain the best fit, and there is no reverse response (when selecting the motor in the design scheme) , assuming that the main parameters of the design scheme are considered, such as large rotational speed and large instantaneous rotational speed, especially in terms of inertia ratio, the two axes cannot be very different). Found non-circles, especially in the case of great circle cutting, when the laser cutting speed and instantaneous speed are slow, first add a "well" motion trajectory to cut the square to see how much the deviation of the two vertical sides is. Deviation usually occurs when the load-bearing beam needs to be adjusted vertically again after it has been compressed. This is a mechanical equipment problem. When cutting small circles under all normal speed and instantaneous speed conditions, such as laser cutting within 5 straight warps, it is usually necessary to adjust the main parameters of the two-axis servo motor, which will return to the upper side. Then the small incision is not very good. If the problem of mechanical equipment is eliminated, the main parameters of the structure of the servo motor, CNC lathe and processing technology are all harmful.