During Laser Welding, It Is Highly Susceptible To Oxidation Due To The Influence of High Temperatures

Laser welding is a process in which materials are heated to a molten state by a high-energy density laser beam, and then cooled to form a permanent connection. However, the high temperature environment involved in this process also poses a risk of oxidation. Oxidation refers to the reaction of materials with oxygen at high temperatures to generate oxides, which may reduce the quality and performance of welded joints.

During laser welding, high temperatures make the metal in the welding area very active and easily react with the surrounding oxygen. For example, when welding steel materials, iron at high temperatures reacts with oxygen to form iron oxides, known as rust. This oxidation reaction not only weakens the strength of the welded joint, but may also lead to problems such as cracks and corrosion.

To reduce the impact of oxidation on laser welding, some measures can be taken. For example, inert gases such as argon are used as protective gases during the welding process to isolate oxygen from contact with the welding area. In addition, the temperature and oxidation risk in the welding area can be reduced by optimizing welding parameters such as laser power, welding speed, and focal position. The implementation of these measures needs to be adjusted and optimized according to specific welding materials and process requirements.

Overall, although there is a risk of oxidation during laser welding, by taking appropriate measures and optimizing process parameters, the impact of oxidation on welding quality can be effectively controlled, ensuring the performance and reliability of the welded joint.