Factors affecting the laser cutting metal

1、Power of the laser

In fact, the cutting ability of the fibre laser cutting machine is mainly related to the power of the laser. The most common power on the market today is 3000W. 4000W. 6000W. 8000W. High power machines can cut thicker or stronger metals.

2, the auxiliary gas used in cutting

Secondly, there are auxiliary gases used in cutting. Common auxiliary gases are O2, N2 and air. Generally, carbon steel is cut with O2, and the purity is required to be 99.5%. In the cutting process, the combustion and oxidation reaction of oxygen can improve the cutting efficiency and eventually form a smooth cutting surface with an oxide layer. However, when cutting stainless steel, due to the high melting point of stainless steel, after considering the cutting quality and finish, N2 is generally used for cutting, and the general purity requirement is 99.999%, which can prevent the incision from producing an oxide film in the cutting process. Make the cutting surface white and form cutting vertical grain.

Carbon steel is usually cut with N2 or air on a 10,000 watt high power machine. Air cutting is cost effective and twice as efficient as O2 cutting for a given thickness. For example, when cutting 3-4mm carbon steel, 3kw can cut it with air, and 120,000kw can cut 12mm with air. gweco also offers a wide range of air compressors for customers to choose from.

3、The influence of cutting speed on cutting effect

Generally speaking, the slower the cutting speed is set, the wider and uneven the kerf is, and the thickness that can be cut will be relatively larger. Do not always cut at the limit power, which will shorten the life of the machine. When the cutting speed is too fast, it is easy to cause the kerf melting speed can not keep up, resulting in hanging slag. Choosing the right speed when cutting helps to achieve good cutting results. Good material surface, selected lenses, etc. will also affect the cutting speed.

4, the quality of the laser cutting machine

The better the quality of the machine, the better the cutting effect, which can avoid secondary processing and reduce labour costs. At the same time, the better the performance of the machine and the kinematics of the machine, the less likely to vibrate during the cutting process, thus ensuring good processing accuracy. The quality of the machine's air circuit components also affects the machining effect, and contamination and leakage of the air circuit components should be avoided during use.

If you are hesitating which laser cutting machine to choose, please do not hesitate to consult SUNNA, we will answer you in time.