Laser cladding is a surface welding method that enables a metallurgical bonding with the base material substrate, like in case of PTA surface welding.The overlays can be applied to most Fe and Ni based substrates with some exceptions.
A high energy laser beam creates an intense heat input and thus alloys are bonded to the surface with a low degree of dilution (<5%). Laser cladding can be fully automated and thus once the parameters are fixed for a certain design, consistent final results are achieved for all parts.
Typical working range
- Deposition rate: up to 8 kg/hour
- Deposition thickness: 0.5 - >4 mm
- Deposition hardness*: >22 - 61 HRC
* Typical for PTA welding / 5% -10% higher with laser cladding
- Suitable for automation
- No fusing required
- 0.5->4 mm thickness
Problems with laser cladding?
|Deposit peels off||1. Poor preparation of the surface (oxidized or dirty surface)
2. Too low preheating temperature
3. Too fast cladding speed
4. Wrong parameters / Bad bonding
|Clean the surface well
1. Overheating / too high welding power, too high dilution
Reduce welding power
1. Poor preparation of the surface
Clean the surface well
1. Incorrect particle size
|Reduce fines content
Adjust and control the cooling water temperature
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