Laser Welding

laser welding
Laser Welding

We thought we would take a little break here from our usual molding and plastic talk and instead discuss laser welding.

Laser welding services  or laser beam welding (LBW) is a  technique that is  used to join several  pieces of metal by employing a laser. The laser  beam creates  a concentrated heat source which allows for very  narrow and  deep welds and high a high welding rate. Laser welding is often  used in high volume applications.

In case you did not know it, LASER is an acronym for “Light Amplification by the Stimulated 
Emission of Radiation”.

 

Welds created by laser welding are much stronger than conventional welds. Industries that may use laser welding include

  • jewelry repair
  • aerospace
  • medial device dental
  • electronics

 

Benefits of laser welding include

  • Processes high-alloy metals
  • open air use
  •  long distances with a minimal loss of power
  • Low total thermal input
  • Welds different  metals
  • No filler metals needed
  • No secondary finishing is needed
  • Highly accurate
  • Welds high-alloy metals

Disadvantages of laser welding include

  • Cools quickly which may cause cracks
  • Optical surfaces may be  damaged
  • High maintenance cost

Comparison  to Other Welding Processes

Similar to  Gas Tungsten Arc Welding, laser welding is a fusion process performed under inert cover gas, where filler material is most times not added. Similar to  electron beam welding, laser welding is a high energy density beam process. Laser cutting is different  from both GTAW and EB  or electron beam welding , because it does not need the workpiece complete an electrical circuit. Because  electron beam welding must be performed inside a vacuum chamber, laser welding may  offer a cost advantage over electron beam welding.

For more information on laser welding we suggest you visit EB Industries.