Solution to laser welding edge biting problem

Multiple methods can be used to avoid the problem of laser welding undercutting, such as optimizing process parameters, reducing welding speed, optimizing plate edges, etc.

Reasons for laser welding edge biting problem
The problem of laser welding undercutting refers to the phenomenon of excessive melting and compression at the welding point during the welding process, resulting in the occurrence of protrusions or indentations at the welding point. The main reasons are as follows:

1. During welding, the temperature was too high, resulting in excessive melting and compression.
2. The welding speed is too fast and insufficient time is not given to balance the molten pool, resulting in uneven melting and subsequent compression.

The method to solve the problem of laser welding undercutting
1. Optimize process parameters
Change parameters such as laser output power, laser beam diameter, scanning speed, etc., and select appropriate process parameters to control the welding process. Simultaneously adjusting according to the characteristics of the welding material can effectively solve the problem of laser welding undercutting.
2. Reduce welding speed
When the welding speed is too fast, it is difficult for the molten pool to reach equilibrium, resulting in edge biting problems at the welding point. Reducing the welding speed can give the molten pool sufficient time to reach equilibrium, thereby reducing the occurrence of undercutting.
3. Optimize the edges of the board
The edge condition of welding materials also has a significant impact on laser welding undercutting. Optimizing the edges of the sheet metal can reduce stress concentration during the welding process and prevent squeezing and bulging.
4. Use adaptive control system
The adaptive control system of laser welding can control welding parameters in real time and adjust them according to the real-time situation of the welding site. Using this system can quickly detect and solve problems such as laser welding undercutting, thereby improving welding quality.

Summary
The problem of laser welding undercutting is a common adverse phenomenon encountered during the laser welding process. To solve this problem, it is necessary to flexibly adjust the welding process parameters based on the characteristics and adaptability of the welding materials, as well as adopt measures such as adaptive control systems. By applying these methods, problems such as laser welding undercutting can be effectively avoided, and welding quality and efficiency can be improved.