After finding the cause of the thermal deformation in laser cutting in last article, we can “prescribe the right medicine” to take specific measures.

1. Manipulate heating

After selecting the relevant methods to reduce the heat source, the thermal deformation of the metal laser cutting machine will be significantly improved.
For example, for a CNC plasma cutting machine tool, a more effective method is to forcibly cool the heating part of the CNC plasma cutting machine lathe, or heat it in the low temperature part of the machine tool to make the temperature of the machine tool uniform, which can reduce the cause The warpage through the temperature difference.

But it is extremely difficult to fundamentally solve this problem, so the only way to reduce the influence of the heat source is to control the temperature rise.
Because of the up-and-down correspondence, the main axis of the double-column unit after the heat absorption produces a vertical angle of translation, and the deformation of the other angles is small, and the axis movement of the vertical angle can be easily dealt with by a calibration amount of a coordinate.

2. Improve the lathe unit

Under the same heating conditions, the metal laser cutting machine lathe unit also has a great influence on the thermal deformation. The structure type should also minimize the distance between the center of the main shaft and the main shaft to the ground to reduce the total amount of thermal deformation.
In addition, the temperature of the front and rear of the spindle box should be the same to prevent the spindle from tilting after deformation. This can reduce the influence of the thermal deformation of the spindle on the machining diameter to a low degree.

3. The heat source of thermal deformation caused by heating inside the lathe must be separated from the host.

The thermal deformation of the shaft is caused by the vertical angle of the cutting tool. For example, the single-column unit used in the metal laser cutting machine CNC machine tool may be replaced by the double-column unit.
We should learn more about this knowledge, standardize control, and reduce the impact of possible thermal deformation. As a thermal cutting processing equipment, CNC flame cutting machine may cause structural deformation based on temperature changes during frequent processing.

Laser cutting may cause deformation of the cut metal. This problem is one of the common problems of laser cutting machines. Because laser cutting belongs to thermal cutting, and thermal cutting will definitely emit heat, we can only say that we try to minimize the occurrence of this situation.