1. Laser cutting with narrow slits and low workpiece distortion

The laser beam is focused into a very small point of light, so that the focus reaches a very high power density. At this time, the heat input of the beam is far more than the part of the material reflection, conduction or diffusion, the material is quickly heated to the degree of vaporization, evaporation and the formation of holes. As the beam moves linearly relative to the material, the holes are continuously formed into slits of very narrow width. The cutting edge is very little affected by heat, and there is basically no deformation of the workpiece.

The cutting process also adds auxiliary vapor suitable for the material being cut. When cutting steel, the use of oxygen as an auxiliary vapor and molten metal to produce an exothermic chemical reaction oxidizing the material, while helping to blow away the slag in the slit. Compressed air is used to cut plastics such as polypropylene, and inert vapors are used to cut flammable materials such as cotton and paper. The auxiliary vapor entering the nozzle also cools the focusing lens, preventing soot from entering the lens holder and contaminating the lens and causing it to overheat.
Most organic and inorganic materials can be laser cut. In the metal processing industry, which is heavily weighted in the industrial manufacturing system, many metal materials, regardless of their hardness, can be cut without distortion. Of course, for high reflectivity materials, such as gold, silver, copper and aluminum alloys, they are also good heat conductors, so laser cutting is difficult or even impossible.
Laser cutting is burr-free, wrinkle-free and highly accurate, and is superior to plasma cutting. For many electromechanical manufacturing industry, due to the microcomputer program control of the modern laser cutting system can facilitate the cutting of different shapes and sizes of workpieces, it is often more than punching, molding process is preferred; although it is slower than the processing speed of the mold rushing, but it does not have a mold consumption, no need to repair the mold, but also save time to replace the mold, thereby saving the cost of processing, reducing the cost of production, so from the overall considerations are more It is more cost-effective in overall consideration.

2. Laser cutting is a kind of non-contact processing with high energy and good density control.

The focusing of a laser beam creates a very small point of action with extremely high energy, and its application to cutting has a number of features. First, the laser light energy is converted into an amazing amount of thermal energy kept in a very small area, which can provide
(1) Narrow straight edge cuts;
(2) Minimal heat affected zone adjacent to the cut edge;
(3) minimal localized distortion.

Secondly, the laser beam exerts no force on the workpiece; it is a contactless cutting tool, which means that

(1) No mechanical deformation of the workpiece;
(2) No tool wear, and can not talk about the conversion of the tool;
(3) cutting material without regard to its hardness, that is, the laser cutting ability is not affected by the hardness of the material being cut, any hardness of the material can be cut.

Again, the laser beam is controllable and has a high degree of adaptability and flexibility, thus

(1) It is easy to combine with automated equipment and easy to automate the cutting process;
(2) The laser beam has unlimited profiling cutting capability because there is no limitation on the workpiece to be cut;
(3) Combined with the computer, the entire board can be scheduled, saving material.

3. Laser cutting has a wide range of adaptability and flexibility

Compared with other conventional processing methods, laser cutting has greater adaptability. First of all, compared with other thermal cutting methods, the same as the thermal cutting process, other methods can not act like a laser beam in a very small area, resulting in a wide kerf, large heat-affected zone and significant deformation of the workpiece. Lasers can cut non-metals in a way that other thermal cutting methods cannot.