Cutting precision is the primary factor in judging the quality of a CNC laser cutting machine. Four main factors affect the cutting precision of a CNC laser cutting machine:
1. The size of the laser beam focused by the laser generator. A very small focused spot results in very high cutting precision and a very small kerf. This indicates very high precision and quality. However, since the laser beam is conical, the resulting kerf is also conical. Under these conditions, the greater the workpiece thickness, the lower the precision, and therefore the larger the kerf.
2. The precision of the worktable. A high-precision worktable leads to higher cutting precision. Therefore, the precision of the worktable is also a very important factor in evaluating the precision of the laser generator.
3. The conical shape of the laser beam. During cutting, the laser beam is conical and points downwards. If the workpiece thickness is very large, the cutting precision will decrease, resulting in a very large kerf.
4. Different materials being cut also affect the precision of the laser cutting machine. Under the same conditions, the precision required to cut stainless steel and aluminum will be very different. Stainless steel will have a higher cutting precision and a smoother cut surface.