Soldering

Menu :

• Laser principle
• Laser sources
• Applications
  • Cutting
  • Metallic welding
  • Plastic welding
  • Soldering
  • Brazing
  • Marking, engraving
  • Cleaning and surface preparation
  • Cladding
  • Surface alloying
  • Laser assisted machining
  • Laser machining

Principle :

Brazing and soldering use both molten metal to join two pieces of metal of the same or different nature. However, the metal added during the process has a melting point lower than that of the workpiece. Under the action of the laser beam the surface of the irradiated materials heats rapidly until they reach the melting temperature of the added metal that is injected under the form of a wire. The molten metal drops onto the surface of the parts to make the link after cooling.

Advantages :

With laser soldering it is possible to join non weldable materials (tool steel for example), to control the constraints of leak proofness, distortions and surface aspect, and to realize critical welds in one operation (small mechanical parts for example).

Aluminium soldering (top)

Steel plate soldering (bottom)

Industrial applications :

Soldering of car body plates :

Joining of two galvanized shaped plates. Thanks to the use of the diode laser it is possible to obtain a very good leak proofness and an excellent surface finishes.