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Laser Brazing

Brazing is a joining method for joining two or more metal parts together. The primary difference between welding and brazing is that welding involves the melting of the base material, whereas brazing involves melting only a filler metal which is flowed into the joint to create a bond between the base parts. A principle consideration is that brazing occurs at a lower temperature than welding, through the practice of selecting filler metals that have a lower melting temperature than the parts to which it will bond.

  • Non-similar metals can be joined together
  • Lower temperature brazing has less potential for distortion
  • Can eliminate the need for trim moldings
  • Reduced materials and manufacturing steps reduces costs
  • Simplification of painting and color-matching process

Benefits of laser Brazing Over Welding

Brazing is a method that is extremely effective at joining two or more metal parts together. It differs from welding in that instead of melting a base material, a filler material is melted and flowed into the joint to create a bond. Since brazing uses filler material, the process allows for the joining of non-similar metals.

Also, since brazing takes place at much lower temperatures than welding does, there’s a lower risk for distortion of the base metal components. Lastly, the reduced number of materials needed for the brazing process reduces costs along with less required manufacturing steps.

Traditional brazing techniques include torch brazing, arc brazing, furnace brazing, and induction brazing. Torch brazing involves the use of a gas flame held near the joint to heat the filler material. Arc brazing uses an electrical current to heat the filler. Furnace brazing requires the heating of the entire assembly. And induction brazing uses induction heating to melt the filler material to join parts.

Fiber laser brazing technology adds a level of precision where conventional brazing methods fall short. The laser quickly melts the filler material with even less heat distributed to the base metal parts. Laser brazing also doesn’t require any flux, further reducing material costs. With the elimination of heat to the joined parts, throughput is increased.