Laser Welding Applications
Evolving since the 1970s, laser welding is a highly efficient, precision joining technique that uses high-energy Continuous Wave (CW) or Pulsed laser beams. It is ideal for everything from micro-components to robust industrial parts. The process operates primarily under two distinct modes:
Occurs at power densities below 10⁴ – 10⁵ W/cm². The laser heats the surface, creating a molten pool via thermal conduction. This mode results in shallow penetration and moderate welding speeds.
Occurs when power density exceeds 10⁵ – 10⁷ W/cm². The intense heat vaporizes the metal to form a "keyhole" cavity. This mode delivers exceptionally fast welding speeds and a high depth-to-width (aspect) ratio.
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