
Deposition techniques
Plasma Transferred Arc (PTA)
Process
PTA (Plasma Transferred Arc) is a welding method, thus it enables a metallurgical bonding with the base material. It can be used on most alloys.
PTA can be fully automated and thus once the parameters are fixed for a certain design, consistent final results are achieved for all pieces.
Typical working range
- Deposition rate: 2-12 kg/hour
- Deposition thickness: 1 - 6 mm
- Deposition hardness: up to 60 HRC
Benefits
- Suitable for automation
- 1-6 mm thickness
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Problems with your PTA process?
Problem | Cause | Solution |
Deposit peels off |
1. Poor preparation of the surface (oxidized or dirty surface) |
Clean the surface well |
Cracks |
1. Overheating / too high welding current resulting in too high dilution |
Reduce welding current |
Porosity |
1. Poor preparation of the surface |
Clean the surface well |
Clogging |
1. Incorrect particle size |
Reduce fines content |

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