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2D Laser Cutting | Bright-surface Laser-Cut

Release Date : 01/28/2019 Views : 998
Mild steel also known as carbon steel, because of its high tensile strength and low cost is a major component used in buildings, machinery, bridges, vehicles, construction, and many other industries.
 
As long as mild steel occupies this position in metal processing there is a high demand for precision parts processed by high power fiber laser’s, a bright surface(edge) and burr free cutting is very important. These parts can fulfil secondary operations such as bending, welding, surface treatment etc.


Bright-surface laser-cut
Bright-surface laser cutting is a new processing technique that is used with high power fiber lasers. The cutting technique ensures the parts will cut with no burr and a bright-surface with standard to higher feed rates depending on the carbon content of the steel. The bright-surface cut is an oxygen cutting technique that is typically used in mid-range mild steel, thick mild steel requires a larger nozzle to ensure good gas flow and to accommodate for higher focal positions, therefore bright-surface cuts are not possible.
 
 
8KW laser cutting 3mm, 4mm, 5mm, 6mm, 8mm carbon steel samples (oxygen)

 
8KW laser cutting 10mm, 12mm, 16mm, 20mm, 25mm carbon steel samples (oxygen)

 
 
 
15KW laser cutting 3mm, 4mm, 5mm, 6mm, 8mm, 10mm carbon steel samples (oxygen)

The Bright -surface cut technique is used to produce bright and smooth finish, to achieve this, we have several tips:
  • Use a smaller nozzle to ensure a good concentration of gas.
  • Use the minimal amount of oxygen possible to avoid cross-sections on the edge.
  • Speed your cutting federate up.
  • Use a higher focus to achieve a larger kerf to reduce the exhaust effect.
                                                                                                      
 

Comparison of nozzles
The size of the nozzle orifice affects cutting quality and the quality of the pierce. The spark splash during piercing and cutting can increase the chance of sparks traveling upward that shortens protection window life.


           
                 
Mild steel also known as carbon steel, because of its high tensile strength and low cost is a major component used in buildings, machinery, bridges, vehicles, construction, and many other industries.
 
As long as mild steel occupies this position in metal processing there is a high demand for precision parts processed by high power fiber laser’s, a bright surface(edge) and burr free cutting is very important. These parts can fulfil secondary operations such as bending, welding, surface treatment etc.


Bright-surface laser-cut
Bright-surface laser cutting is a new processing technique that is used with high power fiber lasers. The cutting technique ensures the parts will cut with no burr and a bright-surface with standard to higher feed rates depending on the carbon content of the steel. The bright-surface cut is an oxygen cutting technique that is typically used in mid-range mild steel, thick mild steel requires a larger nozzle to ensure good gas flow and to accommodate for higher focal positions, therefore bright-surface cuts are not possible.
 
 
8KW laser cutting 3mm, 4mm, 5mm, 6mm, 8mm carbon steel samples (oxygen)

 
8KW laser cutting 10mm, 12mm, 16mm, 20mm, 25mm carbon steel samples (oxygen)

 
 
 
15KW laser cutting 3mm, 4mm, 5mm, 6mm, 8mm, 10mm carbon steel samples (oxygen)

The Bright -surface cut technique is used to produce bright and smooth finish, to achieve this, we have several tips:
  • Use a smaller nozzle to ensure a good concentration of gas.
  • Use the minimal amount of oxygen possible to avoid cross-sections on the edge.
  • Speed your cutting federate up.
  • Use a higher focus to achieve a larger kerf to reduce the exhaust effect.
                                                                                                      
 

Comparison of nozzles
The size of the nozzle orifice affects cutting quality and the quality of the pierce. The spark splash during piercing and cutting can increase the chance of sparks traveling upward that shortens protection window life.


           
                 
 
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