How thick can laser cutting cut objects? Shenyang laser cutting manufacturer explains to you:
When using a laser cutting machine to cut 10mm thick plates, the main reason is that increasing the thickness of the steel plate can easily lead to a decrease in the oxygen purity of the cut, thereby affecting the temperature of the cut. The purity of the oxygen flow has a strong impact on the cutting process. When the purity of oxygen flow decreases by 0.9%, the combustion rate of iron oxide will decrease by 10%; When the purity decreases by 5%, the combustion rate will decrease by 37%.
The decrease in combustion rate will greatly reduce the energy input into the cutting seam during the combustion process, reduce the cutting speed, and increase the iron content in the liquid layer of the cutting surface, thereby increasing the viscosity of the slag and making it difficult to discharge the slag. This will result in severe slag hanging at the lower part of the cut, making the quality of the cut difficult to accept.
1. Laser cutting
Laser cutting is the use of a focused high-power density laser beam to irradiate a workpiece, causing the irradiated material to quickly melt, vaporize, burn, or reach the ignition point. At the same time, high-speed airflow coaxial with the beam is used to blow away the molten material, thereby achieving the cutting of the workpiece. Nowadays, CO2 pulse lasers are commonly used, and laser cutting is one of the thermal cutting methods.
2. Water cutting
Water cutting, also known as waterjet cutting technology, is a machine that uses high-pressure water flow for cutting. Under the control of a computer, workpieces can be carved freely and are minimally affected by material texture. Water cutting is divided into two methods: sand free cutting and sand added cutting.
3. Plasma cutting
Plasma arc cutting is a machining method that uses the heat of a high-temperature plasma arc to locally melt (and evaporate) the metal at the cutting edge of a workpiece, and uses the momentum of high-speed plasma to remove the molten metal to form a cutting edge.
4. Wire cutting
Wire cutting can be divided into fast wire cutting, medium wire cutting, and slow wire cutting. The wire cutting speed of fast wire EDM is 6-12m/s, and the cutting accuracy is poor due to high-speed reciprocating motion.
Medium wire EDM is a new technology developed in recent years that achieves frequency conversion multiple cutting functions on the basis of fast wire cutting. The wire cutting speed of slow wire EDM is 0.2m/s, and it performs low-speed unidirectional motion,
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