Laser Welding

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Advantages

  • Thanks to its low heat input, it allows us to replace with advantages other welding techniques applied currently.
  • High welding speeds are obtained.
  • The distortion and deformation of the material are reduced considerably.
  • Suppression or reduction of post-welding process costs, since grinding is not required.
  • Important reduction of the pores on the seam.
  • High precision can be obtained.
  • Repeatability of the welding parameters and process conditions. High level of control.
  • The laser beam allows a great flexibility by means of its fibre optic output.
  • No tool wearing.
  • No filler material is usually used.
  • High welding quality with very thin seams.

Cordon

Fields of application

  • In general, any industrial sector that requires welding for parts of responsibility. Especially the automobile, aeronautical and railway sectors.
  • Large unitary parts, with long welding seams.
  • High (high process productivity) and medium series of stamped parts that require high quality welding.

Characteristics of the process

  • It allows us to obtain different welding seam lengths and geometries, both continuously and discretely.
  • No direct contact with the welding area.
  • It can be used to join different materials (either to themselves or to dissimilar materials).
  • Amongst which we have to point out steels, stainless steels, nickel, aluminium, titanium alloys, plastics and composite materials.
  • It allows us to manufacture welded components based on materials that are difficult to weld using other techniques (welding may not even be feasible).
  • The welding seams can have different formats (butt welding, with different joints or overlapping welding).
  • Different penetrations can be obtained depending on the type and power of the laser used.
  • Many laser welding processes with steels do not use filler material, therefore the filling of the joint to be welded is carried out with material from the edges.
  • On the other hand, with regards to aluminium alloys, they are generally welded with filler material and special gas protection (special protection also for titanium alloys).
  • Laser welding is carried out in an automated manner, by means of a CAD-CAM capable of generating appropriate paths, obtaining therefore a precise, repetitive and reliable welding treatment.

 

Applications