Table 1 Characteristics of common mold repair methods
Repair method | Surfacing weld | Thermal spraying | Laser cladding |
|---|---|---|---|
Heat source | Arc, plasma arc, etc | Flame, plasma arc, etc | Laser |
Heat affected zone | Large | Small | Small |
Dilution ratio (%) | 2–60 | 1–5 | 1–11 |
Cladding speed (kg/h) | 0.5–6.8 | 1–10 | 13–16 |
Bonding strength with matrix | Metallurgical bonding | Mechanical bonding | Metallurgical bonding |