1
Fast cooling speed (up to 10⁶℃ / s), belongs to the fast solidification process, easy to get the fine crystal organization or produce an equilibrium state can not get the new phase, such as unstable phase, amorphous state.
2
The cladding layer and the substrate are strong metallurgical combination or interface diffusion combination, low dilution rate, strong controllability, according to the needs to control the welding focal length, control the depth of welding melting, and then control the dilution rate of welding.
3
The laser cladding reinforcement repair parts have small thermal impact, small deformation, only surface dissolution in the processing process, and the thermal impact area of the base is small, generally between 0.1-0.5mm.
4
The matrix and cladding material are metallurgical combined, and the binding strength is comparable to the base material.
5
The thickness and hardness range of the cladding layer is large, and the cladding layer is dense, with no pores, slag clips, cracks and other defects, and the hardness of the cladding layer can reach 18-60HRC.
6
There are almost no restrictions on powder selection, melting high melting alloy on the low melting metal surface.
7
Laser is suitable for long-distance transmission, and large parts can be repaired on site.
8
Laser cladding has the characteristics of non-contact welding, for some, groove, deep hole cladding welding.
9
Handheld cladding is flexible, and complex shape parts can be repaired smoothly, without the trouble of programming or automation.
Frequently Asked Questions
What are the cooling characteristics of the laser cladding process?
Laser cladding features an extremely fast cooling speed of up to 10⁶℃/s. This rapid solidification process allows for the creation of fine crystal organizations and unique phases like amorphous states that are not achievable under equilibrium conditions.
How strong is the bond between the cladding layer and the base material?
The cladding layer and the substrate form a powerful metallurgical combination or interface diffusion bond. The resulting binding strength is highly durable and comparable to that of the base material itself.
Does laser cladding cause significant thermal deformation to the parts?
No, laser cladding is characterized by small thermal impact and minimal deformation. The process only causes surface dissolution, with the thermal impact area of the base typically limited to between 0.1-0.5mm.
What hardness levels can be achieved with the laser cladding layer?
The cladding layer is very dense and free from defects like pores or cracks. Depending on the application, the hardness of the layer can reach a wide range between 18-60HRC.
Can laser cladding be used for complex or large-scale repairs?
Yes, the laser is suitable for long-distance transmission, allowing for on-site repairs of large parts. Additionally, handheld cladding offers great flexibility for repairing complex shapes without complex programming.
Is it possible to weld high melting alloys onto low melting surfaces?
Yes, there are almost no restrictions on powder selection, making it possible to melt high-melting-point alloys onto lower-melting-point metal surfaces efficiently.
