Today, let me explain the standard of laser cutting stainless steel thick sheet metal for your reference.

1. Roughness

The laser cutting part will form vertical lines. The depth of the line determines the roughness of the cutting surface. The shallower the line, the smoother the cut part, the deeper the line, and the rougher the section. The lighter the texture, the higher the cutting quality.

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2. Perpendicularity

For thick plates, the perpendicularity of the cutting edge is very important. When away from the focus, the laser beam diverges, which may lead to inconsistent width of the slit; If the cutting edge deviates too much from the vertical line, the workpiece will be unqualified and difficult to use; The more vertical the edge, the higher the cutting quality.

3. Cutting width

The cutting width determines the inner diameter of the profile. In actual cutting, it is necessary to adjust the parameters to compensate the material to be cut to ensure that the workpiece reaches the required size.

4. Texture

When cutting thick plates at high speed, molten metal is not sprayed from the incision below the vertical laser beam, but from the rear of the laser beam. This will form a curve on the cutting edge. To solve this problem, it is necessary to reduce the feed speed at the end of the cutting process, which can greatly eliminate the formation of lines.

5. Burr

The existence and quantity of burr is a very important factor to determine the quality of laser cutting. Burr removal requires additional work, which will be calculated in time and labor costs. Therefore, burr is the basic standard to judge whether laser cutting is qualified.

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6. Heat affected zone

The heat affected zone refers to the depth of the area where the internal structure changes. In laser cutting, the metal area near the cutting is heated, which may lead to changes in the structure of the metal. For example, some metals will harden.

7. Deformation

If the part is cut and heated sharply, it will deform. This is particularly important in fine processing. Control of laser power and use of short laser pulses can reduce part heating and avoid deformation.