The Advanatges of the Nd:YAG Laser welding process

  • No/minimal undercut around the weld
  • Lowest heat input of any comparable welding process.
  • No distortion of the work piece.
  • The laser beam is focused to a very small diameter.
  • Precise control of the weld location.
  • Can weld close to important features without damage
  • Only sufficient material deposited to do the job.
  • Resulting in minimal machining to complete the job.
  • Fine grain structure of the weld material.
  • No discolouration of weld and surrounding material.
  • No discolouration of the parent part
  • No weld splatter
  • Welds down to 0.3mm
  • Weld inside cavities
  • Non porous welds
  • Fast, cost effective.
  • Reduces need for inserts in injection moulds.
  • No fillers or fluxes
  • Weld dissimilar metals, e.g., Steel onto beryllium copper
  • Assembly weld small metal parts without filler rod


  • Only a small volume is fused with minimal heat input. This enables distortion-free welding, frequently without the need for preheating. Extremely short weld time prevents coarse grain formation.
  • The heat affected zone measures only a few tenths of a millimeter with minimal change in the structure. With the right choice of filler material all subsequent processing, such as polishing or etching, can be carried out without a problem
  • Loss of hardness and resilience in the basic material hardly ever occurs, nor does any coarse-grain zone or undercut.
  • Welds typically have adequate hardness as deposited, not requiring pre- or post-weld heat treatment.