Views: 923 Author: Site Editor Publish Time: 2023-04-23 Origin: Site
The difference between laser cutting machines and plasma cutting machines in metal processing, including the cutting thickness，cutting quality and the role played in different industries
The plasma cutting machine is a kind of thermal cutting equipment, which is more suitable for more than 6mm thickness and with low precision requirement. In theory, the maximum thickness of a plasma laser cutting machine can reach hundreds of mm, but the optimal cutting range is about 80mm. Disadvantages of plasma cutting: It is not suitable for cutting below 3mm metal sheets, the slit is wide and the precision is poor; the cutting surface with poor perpendicular when cutting 5mm or more than 5mm thickness plate.
At present, the maximum cutting capacity of laser cutting machine in industrial application: carbon steel is 36mm (If the steel plate quality is good, the speed can be around 650mm/min), stainless steel is 25mm (If high pressure nitrogen is used as auxiliary gas, the speed is around 400mm/min) .The laser cutting machine used in domestic usually cutting mild steel below 25mm, stainless steel 16mm or less. Laser cutting machines can cut very thin boards according to its power and performance, and the thick plates can be around 30mm. If the 36mm steel plate is made of good material, the machine is good, and the graphics are not very complicated, the cutting quality also very good. The key is that the speed is not fast; most reasonable choice is plasma cutting machine or flame cutting machine.
The cutting principle of the plasma cutting machine is to use high temperature plasma arc heat to melt the metal at the cutting part of the workpiece, and simultaneously blow away the molten metal with a high-speed air flow to form a narrow slit; the plasma cutting machine can cutting stainless steel, iron, aluminum, various metal materials. The biggest disadvantage of using plasma cutting is that the cutting gap is large, the cutting end surface is rough and not smooth, and the cutting precision is low. Plasma cutting machines are commonly used in the construction, installation and maintenance of mechanical and metal structures.
The laser cutting machine is a combination of CNC machine tools and laser technology. The laser cutting machine use high-power and high-density laser beam scans the surface of the material and can heat the material to thousands or even tens of degrees Celsius in a short period of time. The material can be melted or vaporized, and the molten or other material can be blown away from the slit by a high pressure gas. It has high energy and high polymerizability, it can be cut without touch with the surface of the workpiece, the cutting gap is very small, the precision is very high, the heat affected zone is small, and the cutting end face is smooth and without burrs. Laser cutting uses an invisible beam instead of a traditional mechanical knife. The laser cutting speed is fast and the slit is smooth. Generally, no post-processing is required, the cutting heat is less affected, and the sheet deformation is small.
1. The automotive industry. Many corners of the automotive industry, such as car doors and car exhaust pipes, need to be processed after the formation with some extra corners or burrs. If artificial, It is difficult to achieve high precision and high efficiency. The robotic laser cutting machine can process batches quickly.
2. Fitness equipment. Square fitness equipment and home fitness equipment have gradually developed, and the demand has gradually increased. It needs cutting pipes, and it is convenient and quick to use the pipe laser cutting machine.
3. Kitchenware industry. The kitchen-related products need highly accurate. The laser cutting machine is suitable for cutting thin-plate stainless steel. It has high speed, high precision and high satisfaction. It can also realize customized and personalized product development, which is very popular among kitchen manufacturers.
4. Sheet metal process. In simple terms, processing is a variety of plates and different graphic cutting parts, Laser cutting machines are especially needed
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At present, the metal processing industry is the most widely used in this industry technology. Flame cutting is can’t meet the current work requirements. Plasma cutting can be applied to metals of different materials and different characteristics. Therefore, we will use the plasma cutting machine more and more.
In industrial production, the processing of metal materials mainly uses plasma cutting, flame cutting and other related technologies, while plasma cutting has more extensive application advantages than other cutting technologies, because it can be cutting with high quality and efficiency, therefore, it has got a certain degree of attention in industrial production, especially for refined plasma cutting technology, the relevant cutting quality can get even with laser cutting, But it can pay less than laser cutting ,this greatly enhances the economic benefits of industrial production.
The cost of plasma cutting machine is much lower than laser cutting machine. The laser cutting machine is composed of many precision parts. The cost of mechanical parts is very high. The laser source is mainly imported. The servo motor also mainly imported, and the technical content is much higher than the plasma cutting machine. So the Laser cutting machine cost much more than plasma cutting machine.
Plasma cutting and laser cutting are commonly used in the construction, installation and maintenance of mechanical and metal structures. Laser cutting machines are mostly used in very fine sheet metal processing, aerospace, military production, petroleum equipment, construction machinery, automobile production, electrical equipment, college teaching and so on. With the acceleration of the industrialization process, the requirements for the precision of sheet metal workpieces in various fields are getting higher and higher, and the advantages of laser cutting machines will become more and more prominent.
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