Laser cutting technology as an important technology in the field of laser processing, judge the quality of laser cutting machine cutting is good or bad, is the best way to determine the best performance of laser cutting equipment, so how to judge the quality of laser cutting machine cutting, laser cutting machine cutting quality criteria is what?
1. Roughness laser cutting section will form a vertical grain, the depth of the grain determines the roughness of the cutting surface, the shallower the grain, the smoother the cutting section. Roughness affects not only the appearance of the edge, but also the friction characteristics. In most cases, the roughness needs to be minimized, so the shallower the grain, the higher the cutting quality.
2. The perpendicularity of the cutting edge is very important if the thickness of the sheet metal exceeds 10mm. Away from the focus, the laser beam diverges and the cut widens toward the top or bottom, depending on where the focus is. The cutting edge deviates from the vertical line by a few millimeters. The more vertical the edge, the higher the cutting quality.
3. The cutting width and incision width generally do not affect the cutting quality. Only when a particularly precise outline is formed inside the component, the cutting width has an important impact. So to ensure the same accuracy, no matter how big the incision width, the workpiece in the laser cutting machine processing area should be constant.
4. When high-speed cutting thick plate, the molten metal will not appear in the incision below the vertical laser beam, but will spray out at the back of the laser beam. As a result, curved lines are formed at the cutting edge, and the lines closely follow the moving laser beam. To correct this problem, reducing the feed rate at the end of the cutting process can greatly eliminate the lines
5 burr burr formation determines the quality of laser cutting a very important factor, because the removal of burr needs additional work, so the amount of burr is serious and how much can intuitively judge the quality of cutting.
6. The material deposition laser cutter hits a special oil-bearing liquid on the surface of the workpiece before it begins to melt and punch. Gasified and varied, the material does not need to be blown by the customer to remove the notch, but the upward or downward discharge can also form a deposit on the surface.
7. Dents and corrosion Dents and corrosion have an adverse effect on the surface of the cut edge, affecting the appearance. They appear in cutting errors that should normally be avoided.
8. Heat-affected zone In laser cutting, the area along the incision is heated. At the same time, the structure of the metal changes. For example, some metals harden. Heat affected area refers to the depth of the area where the internal structure has changed.
Post time: Mar-18-2023