: Low power density welding where the laser heats the surface, and heat is transferred inward through conduction. Keyhole Mode : High power density (typically above
) creates a vapor-filled cavity or "keyhole" that allows for deep, narrow penetration. laser beam welding pdf download
At its heart, LBW relies on to produce a monochromatic, coherent beam. : Low power density welding where the laser
: The concentrated beam strikes the joint, generating intense heat that melts the material almost instantaneously. Operating Modes : narrow penetration. At its heart
: A high-voltage power supply triggers a laser medium (such as a ruby rod, CO2 gas, or fiber optics), emitting photons that are focused through lenses or mirrors onto the workpiece.