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Metal laser cutting machine becomes a powerful assistant for sheet metal cutting

by:VENTECH     2021-12-26

Metal laser cutting machine is known as the tailor of metal processing. It mainly benefits from the advantages of good processing quality and high efficiency. It has become the core of manufacturing processing equipment and plays an irreplaceable role in various fields. Metal laser cutting machine Cutting all kinds of metals is easy, fast and efficient, instead of the traditional technology, and has become the mainstream metal processing technology.

Fiber laser cutting machine is widely used in carbon steel cutting. The advantage of carbon steel laser cutting machine is that it can cut any gauge pattern on the plate, with high speed and high precision. Forming without subsequent processing. In addition, the laser cutting machine cuts carbon steel without the need for molds to save costs, visible discharge, close fit, and save materials. The application of carbon steel is becoming more and more widespread.

Stainless steel has a wide range of applications, such as kitchen equipment, general drawing materials, gas stoves, refrigerators, electrical appliances, building materials, re-grinding, elevators, and construction Stainless steel can be seen in interior and exterior decorative materials, chemical equipment, heat exchangers, boilers, etc.! Laser cutting stainless steel uses the energy released when the laser is irradiated on the surface of the steel plate to melt and evaporate the stainless steel. For the manufacturing industry that uses stainless steel sheet as the main component, laser cutting stainless steel is a fast and effective processing method.

The most important process parameters that affect the quality of stainless steel cutting are cutting speed, laser power, air pressure and so on. Alloy steel Most alloy structural steels and alloy tool steels can be used to obtain good trimming quality by laser cutting. Even for some high-strength materials, as long as the process parameters are properly controlled, straight, non-sticky slag cutting edges can be obtained. However, for tungsten-containing high-speed tool steels and hot mold steels, there will be erosion and slag sticking during processing by fiber laser cutting machines.

Compared with mild steel, stainless steel cutting requires higher laser power and oxygen pressure. Although stainless steel cutting achieves satisfactory cutting results, it is difficult to obtain complete For non-sticky slag cutting, the method of coaxial injection of high-pressure nitrogen with a laser beam is often used to blow away the molten metal so that no oxides are formed on the cutting surface. This is a good method, but it is more expensive than traditional oxygen cutting. One way to replace pure nitrogen is to use filtered workshop compressed air, which consists of 78% helium.

Although the laser cutting machine can be widely used in the processing of various metal and non-metal materials. However, some materials, such as copper, aluminum and their alloys, are not easy to process due to their own characteristics (high reflectivity). Nickel alloys Nickel-based alloys are also called super alloys, and there are many varieties. Most of them can be oxidized fusion cutting. Pure copper cannot be cut with Co2 laser beam due to its high emissivity.

Brass uses a higher laser power, and the auxiliary gas uses air or oxygen to cut thinner plates. At present, the aluminum plate smooth cutting machine is used for cutting aluminum or cutting other materials. Material materials, such as stainless steel, carbon steel, etc. have good performance, but they are also unable to process thicker aluminum. The auxiliary gas used is mainly used to blow away the molten product from the cutting zone, and usually a better cut surface quality can be obtained. For some aluminum alloys, attention should be paid to prevent the occurrence of micro-cracks between the surface of the slit.

The laser cutting quality of titanium alloy commonly used in titanium and alloy aircraft manufacturing is better, although there will be a little sticky slag at the bottom of the cut and it is easy to clean. Pure titanium can well couple the heat energy converted by the focused laser beam. When the auxiliary gas is oxygen, the chemical reaction is fierce and the cutting is faster, but it is easy to form an oxide layer on the cutting edge, and it can cause overburn if you are not careful. For the sake of safety, it is better to use air as the auxiliary gas to ensure the cutting quality.

The metal laser cutting machine has truly become a powerful assistant in sheet metal cutting processing!


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