Processing services Laser cutting

Method

Due to the very narrow kerf and minor heat deformation this method allows the cutting of small holes, fine details and complex shapes with excellent tolerances on today’s advanced machines. Even standard laser cutting machines today usually feature CNC control for 3D laser cutting, with the possibility to cut angles for weld preparations whilst cutting a complex series of holes and the external part profile. Most common is the traditional CO2 laser but new generation fiber lasers are now becoming the industry standard for thinner steel sheet cutting due to the lower operating costs and high cutting speeds.

The assist gas used can be active or inactive gas, and these are jetted into the laser beam melt pool area by special nozzles. Active gas like Oxygen produces an exothermic reaction at the melt pool adding to the efficiency of the laser but resulting in an oxidized edge. An Inactive gas which is an inert gas and most commonly Nitrogen, Helium, Argon and/or CO2, which reduce the cutting speed but give superior edge quality. 

 

 

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Laser cutting features

Benefits
  • Excellent cut edge quality
  • Excellent tolerances
  • High efficiency especially on thin gauges
  • Narrow HAZ
  • Possibility for very low scrap rate
  • Minimal angular diffraction of the beam 

Drawbacks
  • Higher investment costs compared to e.g. plasma cutting
  • Limited material thickness <30mm

Recommendations

Laser cutting is the best recommended cutting method for thinner gauges demanding high geometric tolerances for cutting shapes and profiles within <0,5mm tolerance

Our offer 

SSAB Shape can offer laser cutting services from our own centers globally and in addition we have a service partner network that can be utilized. Our offer includes:

  • Lengths up to 30,000mm
  • Widths up to 5,000mm
  • Thickness up to 25mm

In many of our service centers we have the possibility to combine laser cutting of parts with other metal processing methods, for example press bending, to fulfil your complete requirements.   

 

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