How to choose the proper auxiliary gas in laser cutting

Writer： admin Time：2022-07-28 17:20 Browse：℃

This Page let's talk about the proper selection of auxiliary gas in laser cutting .Just like good dishes, kitchen utensils, tools, materials, and auxiliary are important. Laser cutting, excellent equipment is the base, and auxiliary gas also need to be selected properly.

 

Take carbon steel for example, which is widely used in many industries. In traditional laser cutting carbon steel, oxygen is generally selected. With the continuous progress and breakthrough of high-power laser cutting technology, Max Laser innovative laser cutting application technology department breaks the routine and applies nitrogen, oxygen, and air to different materials according to different cutting needs. Not only can the cutting efficiency be improved, but also the terminal processing cost can be reduced.

 

 

Reasons for choosing different gases
1. For any thickness of carbon steel, there is a limit speed when using oxygen to cut. Even when the laser power is increased, the cutting speed remains unchanged.
2. The high-power laser uses oxygen to cut medium and thin carbon steel to prevent over-burning of cutting due to ultra-high power. The power must be reduced for cutting.
3. The use of 10,000-watt or more lasers to cut medium and thin carbon steel with oxygen has no speed advantage, but increases processing costs.

Different auxiliary gas in cutting carbon steel and stainless steel 

   

 
Choose the right gas to double the efficiency
When the 10,000-watt laser uses oxygen to cut carbon steel, too high power will increase the heat input, causing the plate to overheat, which is detrimental to the cutting effect. So for medium and thin carbon steel, the 10,000-watt laser cutting equipment cannot exert its due effective advantages. Therefore, air cutting can be considered to cut carbon steel like stainless steel and give full play to the energy of the 10,000-watt laser to realize cutting carbon steel with high-speed cutting and can reduce processing costs.
 
It can be seen from the test data of innovative high brightness 12kw three-in-one
1. The same cutting carbon steel 8-16mm, using air to increase the cutting efficiency by 47%-450% compared to oxygen
2. Using air to cut 8-16mm carbon steel, it can achieve smooth and slag-free cutting effect
Data for 12kw Max Laser cutting equipment cutting speed with different gas
 

Red : oxygen

Blue: air

 

However, when cutting thick carbon steel, air cutting is not easy to cut into sections, and it is easy to hang slag, and it is impossible to cut a smooth section. Therefore, oxygen-assisted cutting is required to cut a high-quality section.

Best Suggestion for 10,000-watt laser cutting equipment cutting carbon steel
 

 

 
1. The 10,000-watt laser cutting machine processes carbon steel 3-12mm, using air to cut faster than oxygen, with lower cost and higher benefits.
2. The 22-45mm carbon steel is processed by the 10,000-watt laser cutting machine. It is cut with nitrogen and air. The slag is serious, and the processing cost has no advantage. It is recommended to use oxygen cutting to ensure the cutting effect.