Method of Laser Welding

Metal Welding

Applicable Model : Fiber Laser Welder and YAG Laser Welder

Metal Welding

Metal Surface Melting

  • Power density of the laser beam necessary for deep penetration (key hole) type metal melting is 105~106 W/cm2 or more

Key Hole Forming

  • Melted metal is pushed out by the strong force of the metal vapor
  • The key hole is maintained by the balance between the metal vapor pressure and the shrinkage pressure by the melting section surface tension
  • While the key hole is being maintained, the laser beam being continuously irradiated is repeatedly absorbed and refl ected on the key hole wall, and intrudes deep inside the hole causing melting and vaporing

Solidification

  • The balance between the vapor pressure and the surface tension is lost, and the melted section flows into the hole resulting in completion of the welding

Soldering

Applicable Model : Laser Diode Welder

Soldering

Plastic Welding

Applicable Model : Laser Diode Welder

Plastic Welding

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