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Six Functions that Double Laser Cutting Efficiency

Views: 39     Author: Site Editor     Publish Time: 2020-02-18      Origin: Site

The idle distance of the early laser cutting machine is shown in the figure below. The cutting head needs to perform the third action for the second time: ascend (to a height that is safe enough), translate (reach above point B), and descend.


Today, in the cutting process, there are six practical functions. With these practical functions, the processing efficiency and cutting performance of the laser cutting machine can be greatly improved.

1. Leapfrog

Leapfrog is a free-range method of laser cutting machine. In the development of laser cutting machines, Leapfrog counted as an outstanding technological progress. The frog jump action only takes up the time of translation from point A to point B, and saves the time of rising and falling. The frog jumped and caught food; the frog jump of the laser cutter "caught" high efficiency.


2. Auto focus

When cutting different materials, the focus of the laser beam is required to be at different positions on the cross section of the workpiece. Therefore, it is necessary to adjust the focus position (focusing). Early laser cutting machines generally used manual focusing; at present, many manufacturers' machines have realized automatic focusing.

The method of auto-focusing is: add a servo motor on the focusing lens to realize the vertical movement of the focusing lens. This function can help the machine to automatically adjust the focus to the most suitable position.

3. Automatic edge finding

The automatic edge finding function can sense the inclination angle and origin of the sheet, and adjust the cutting process to suit the angle and position of the sheet, thereby avoiding waste. With the automatic edge-finding function, the time required to adjust the workpiece was saved earlier-it is not easy to adjust (move) a workpiece weighing hundreds of kilograms on the cutting table, which improves the efficiency of the machine.

4. Concentrated perforation

Centralized perforation, also called pre-perforation, is a processing technology, not a function of the machine itself, and requires the help of an automatic programming system when it is used. When laser cutting thicker plates, the cutting process of each contour goes through two stages: 1. perforation and 2. cutting.

Centralized perforation can improve processing efficiency. By adopting the centralized perforation method, the focus can be automatically adjusted to the position suitable for perforation. After the perforation is completed, the focus position can be automatically adjusted to the optimal position required for cutting. In this way, the perforation time can be reduced by more than half and the efficiency can be greatly improved. . (For example, air + continuous wave can be used for perforation, and oxygen is used for cutting, and there is enough time to complete the gas switching).

5. Bridge position (micro-connection)

During the laser cutting process, the sheet is supported by a jagged support bar. If the cut part is not small enough, it cannot fall from the gap of the support bar; if it is not large enough, it cannot be supported by the support bar; it may lose balance and lift up. The cutting head moving at a high speed may collide with it. If the cutting head stops, the cutting head may be damaged.

This can be avoided by using the bridge (micro-connection) cutting process. When programming the graphics for laser cutting, the closed contour is intentionally broken at several places, so that after the cutting is completed, the parts and the surrounding materials are stuck together, so that they will not fall. These breaks are the bridge positions. Also called breakpoint, or micro-connection. The break distance is about 0.2 ~ 1mm, which is proportional to the thickness of the sheet. Based on different angles, there are these different names: based on the outline, it is broken, so it is called a breakpoint; based on parts, it is bonded to the base material, so it is called a bridge or micro-connection.

The bridge position connects the parts with the surrounding materials. The mature programming software can automatically add the appropriate number of bridge positions according to the length of the contour. It can also distinguish the inner and outer contours and decide whether to add a bridge position so that the inner contour (waste) of the bridge position is not dropped, and the outer contour (parts) of the bridge position are adhered to the base material without falling, thereby eliminating Sorting work.

6. Coedge cutting

If the contours of adjacent parts are straight and have the same angle, they can be combined into a straight line and cut only once. This is co-edge cutting. Obviously, co-edge cutting reduces the cutting length. In addition, co-edge cutting does not require the shape of the part to be rectangular. Therefore, the processing efficiency is significantly improved.



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