Ⅰ. Reasons for insufficient penetration of laser welding machine
1. Insufficient energy density of laser welding machine
The welding quality of laser welders is related to energy density. The higher the energy density, the better the weld quality and the greater the penetration depth. If the energy density is insufficient, it may cause insufficient penetration of the weld.
2. Improper weld spacing
Insufficient weld spacing may cause insufficient weld penetration, because too small weld spacing will make the laser welding area too narrow and there will not be enough space for penetration.
3. Too fast laser welding speed
Too fast laser welding speed may cause insufficient weld penetration, because too fast welding speed will reduce welding time and thus reduce penetration depth.
4. Insufficient composition
If the composition of the welding material does not meet the requirements, it may also cause insufficient weld penetration. For example, if the welding material contains too much oxide, the weld quality will deteriorate and cause insufficient penetration.
5. Incorrect defocus of the focusing mirror
The incorrect defocus of the focusing mirror causes the laser beam to fail to focus accurately on the workpiece, affecting the melting depth.
Ⅱ. Solutions to insufficient penetration of laser welding machine
1. Adjust laser welding energy density
As mentioned above, if the energy density is insufficient, it may cause insufficient penetration of the weld. Therefore, users can increase the penetration depth of the weld by adjusting the laser welding energy density. Generally speaking, increasing the laser power or reducing the width and depth of the weld can effectively increase the energy density.
2. Adjust the weld spacing and welding speed
If the weld spacing is insufficient or the welding speed is too fast, it will cause insufficient penetration of the weld. Users can solve these problems by properly adjusting the weld spacing and welding speed. Generally speaking, increasing the weld spacing or slowing down the welding speed can effectively increase the penetration depth of the weld.
3. Replace the appropriate welding material
If the composition of the welding material does not meet the requirements, it may also cause insufficient penetration of the weld. Users can replace the appropriate welding material according to the welding requirements and the properties of the material to solve these problems.
4. Adjust the defocus of the focusing mirror
Adjust the defocus of the focusing mirror to a position close to the focal point to ensure that the laser beam is accurately focused on the workpiece.
In short, there may be many reasons for insufficient penetration of laser welding machine, which need to be analyzed and solved according to the actual situation. By reasonably adjusting factors such as laser welding energy density, weld spacing, welding speed and welding materials, the weld penetration depth can be effectively improved, thereby obtaining better welding quality.
Post time: Apr-28-2025
