Influence Metal Laser Cutting Machine Cutting Quality And Measures

What is a Metal laser cutting machine? 

The Metal laser cutting machine is a laser cutting machine specially designed to cut and process meta materials. 

The Metal laser cutting machine has performed well in recent years. Its laser cutting processing, whether in appearance, efficiency and stability, far surpasses traditional cutting processing. With the seemingly simple laser cutting, what is its cutting principle? Let's take a look together below.

The principle of laser cutting machine: fiber laser is to dope the pump material into the fiber. After the laser of a specific wavelength emitted by the semiconductor laser is combined, the fiber will generate laser light and focus on The surface of the workpiece, so that the workpiece is The area irradiated by the Principles, features and advantages of cnc fiber laser cutting machinefeatures and advantages of cnc fiber laspot is melted and vaporized instantaneously, and the spot irradiation position is moved by the computer-controlled numerical control mechanical system to realize automatic drilling. It is a high-tech equipment integrating laser technology,

numerical control technology, and precision machinery technology. Materials that can be processed by the sheet metal laser cutting machine: It can cut a variety of metal plates and pipes, mainly suitable for stainless steel, carbon steel, alloy steel, silicon steel, spring steel, aluminum, aluminum alloy, galvanized sheet, galvanized steel, pickling Cutting of plates, copper, silver, gold, qin and other metal plates and pipes.

The scope of application of stainless steel laser cutting machine price: metal sheet processing, advertising sign production, high and low voltage electrical cabinet production, mechanical parts, kitchenware, automobiles, machinery, metal crafts,saw blades, electrical parts, glasses industry, spring sheets, circuit boards ,Electric kettles, medical microelectronics, hardware, knife measuring

Today we will briefly discuss the major factors affecting the quality of the cut and how to properly control it.

1.Laser power

The amount of laser power at the time of cutting depends primarily on the nature of the material being cut and the type of cut required. However, in general, it can be concluded that the greater the power, the greater the thickness of the material that can be cut, and the cutting speed and the width of the slit are also increased; the laser power required for different cutting types is gasification cutting>melting cutting>oxygen cutting. Different cutting materials will correspond to the best laser power, and the determination of the best power needs to be judged by actual cutting and observation. In general, if the actual power is greater than the optimal power, then the heat affected zone around the cut will be enlarged, and the sharp corners will even be partially melted, making it look like a rounded shape, thus affecting the cutting effect. . When the actual power is less than the optimal power, the roughness of the lower part of the cutting surface is deteriorated, and the slag is hard and hard to remove.

Since the sputtering state of the spark during the cutting process is directly affected by the flow of the molten metal in the slit, the determination of the optimum laser power can be judged by the spark state of the sputtering during the cutting process. If the power selection is appropriate, the state of the spark should be straight and concentrated, slightly lagging but in the same direction as the cutting direction, slender.

Analysis of the factors affecting laser cutting machine laser cutting quality and how to control it

2. Auxiliary gas type and its pressure

The auxiliary gas is usually oxygen, nitrogen, inert gas or compressed air, and the processing quality and capacity are affected by the type of gas. When oxygen is used as an auxiliary gas, the flammability of oxygen improves the cutting speed and improves the cutting ability, but at the same time, an oxide film is formed on the surface of the cutting material due to chemical reaction, which becomes a limitation of oxygen use. When nitrogen or air is used as an auxiliary gas, the back slag can be effectively prevented. In summary, the gas type is different, the cutting effect and speed are different, the oxygen cutting speed is the fastest, the nitrogen cutting effect is the best, and the air cutting cost is the lowest.

Analysis of the factors affecting laser cutting quality and how to control it

3. Focus position

The focus position affects the width of the slit, the slope, the roughness of the cut surface, the sticking state of the slag, and the cutting speed. Only when the laser gets the maximum energy density on the surface of the processed material, the melting range is narrower and can be processed with high precision. Whether the focus is moved up or down, the upper slit of the machined material is widened. The smaller the beam diameter at the focus position and the smaller the focal depth of the short focal length lens, the greater the extent of the upper kerf as a function of the focus position.

Analysis of the factors affecting laser cutting quality and how to control it

4. Related elements of processing materials

When a machining material is processed using a laser cutter, on the one hand, the surface condition of the material affects the stability of the absorption of the laser beam, and on the other hand, the shape of the processing also affects the diffusion of heat.

Material: Different materials have different absorption rates for lasers, so different materials have different cutting adaptability. It should be noted that materials with high reflectivity such as copper and aluminum are not conducive to the formation of spots, so the requirements for the cutting machine are higher.

Thickness: As the thickness of the sheet increases, the required laser power is getting larger and larger, and the cutting speed required is getting lower and lower. When cutting thick plates, if the power is not enough and the cutting speed is too fast, it is not easy to cut through.

Surface state: Surface roughness and surface oxide layer will affect the surface absorption rate to some extent. In general, the flatter the surface of the material, the better the quality of the cut. Therefore, in various places, the material cutting performance can be improved by changing the surface state of the material.

Laser Cutting head RAYTOOLS / WSX

Multiple protection

3 pieces of protection lens, highly effective protection of collimating focus lens. 2-way optical water cooling, effectively extending the continuous working time.

Various brands of laser head are available

We can provide all high quality laser heads in.it has been tested by us for a long time. Empower/WSX all of our long-term partners.

High-precision

The closed-loop stepping motor is adopted to effectively avoid step loss. The focusing speed is 100 m m / s and the repetition accuracy is 1 μ M. IP65 class dust-proof, patent protection mirror cover plate, dust-proof without dead angle.