Generally speaking, the laser cutting machine will check the cutting quality after use, but there are many inspection standards for the cutting quality of the laser cutting machine, and the cutting effect is still difficult to unify. The cutting effect can be judged from the following aspects:
1. Roughness
The cutting edge will leave a cutting line more or less, and the depth of the line determines the roughness of the cutting surface. The shallower the texture, the lower the roughness, and the smoother the surface. Generally speaking, the thinner the material thickness, the lower the cutting surface roughness; The surface roughness cut with nitrogen or argon is lower than that cut with oxygen.
2. Verticality
Due to the focusing and divergent characteristics of the cutting beam, during the cutting process (especially when cutting thick plates), the sizes of light spots at different depths in the material thickness direction are inconsistent, resulting in that the cutting surface and the plate surface cannot reach 90 degrees, or the upper surface is wider or the lower surface is wider. Generally speaking, the thinner the material is, the better the perpendicularity is. The better the beam quality, the better the perpendicularity. In addition, it is also related to the relative position of the spot focus and the material thickness direction in the specific processing process.
3. Burrs
The cutting edge shall be free of burrs, which need to be treated later. This is related to the matching of process parameters, material types and beam quality in a specific processing process.
4. Deformation
Because the nature of laser cutting is thermal cutting, the plate will inevitably deform. Excellent cutting should minimize the negative impact, and special attention should be paid to cutting. Generally speaking, the faster the cutting speed is, the narrower the cutting seam is, the greater the gas flow is, and the smaller the deformation is.
In terms of cutting quality, the quality standard of laser cutting machine has been shown for a long time. Therefore, as far as the laser industry is concerned, the production and manufacture of laser cutting machines have always focused on implementation. Similarly, cutting the aerospace field is also the selection standard for customers.