<p>Source: Dr.-Ing. E. Beyer, Welding with Lasers - Basics</p>

Principle Metal Welding

Heat conduction welding

  • Larger spot size and reduced intensities
  • Flat welding seams due to the fact that the induced laser power is not enough to create a deep welding seam
  • Wide joints
  • High welding seam quality
  • Visible welding seams with less rework

Deep penetration welding

  • Small spot size and high intensities
  • Shallow and deep welding seams by creating a keyhole
  • Small joints
  • Typical laser welding geometry
  • Structured welding seams
  • Usually some rework necessary