Laser Beam Welded Finned Tubes – Laser beam welding is a welding process that irradiates a high-intensity laser beam onto the surface of a metal, and through the interaction of the laser and the metal, the metal absorbs the laser light into heat and melts the metal to form a cooling crystal.
High-Frequency Resistance Welded Finned Tubes – High frequency resistance welding process is the regular method of finned tube welding. The winding of the fin is continuously welded by high-frequency resistance welding giving the most robust bond between the fin and tube.
Comparison Table
| Item | Description | Laser Beam Welding | High Frequency Resistance Welding |
| 1 | Welding Bond | Better | Good |
| 2 | Weld Cleanliness | Better | Good (Have Some Contaminate) |
| 3 | Fin Straight | Better | Good (Have Some Corrugate) |
| 4 | Dissimilar Materials Joint | Unlimited | Limited |
| 5 | Heat Transfer Coefficient | Better | Good |
| 6 | Thickness of Fin | Thinner fin thickness (Minimum 0.4 mm) | Limited to thin fin thickness |
| 7 | Power Consumption | Low | high |