Monday, December 19, 2011

LBM (LaserBeam Machining)

     Laser beam machining (LBM) works on a principle of LASER (light amplification of stimulated emission of radiation). The basic principle of laser operation is Bohr’s law. It states that stimulated emission is made by the transition to basic atom’s state from excited state. Laser uses almost completely monochromatic and highly coherent, focused light, to create huge energy density with temperatures 8000÷10000 K. The stream of photons which provides such enormous temperatures gives an explosive erosion of all possible materials. Focused photon stream is a powerful tool for erosion cutting, welding, engraving, soldering, hardening and imbueing. In the laser’s head the focus of photons can be made by: solid laser, gas laser, semiconductor laser or a fluid laser. For the laser beam machining purposes the solid lasers are commonly used.
Solid Laser Working Scheme
Gas Laser Working Scheme

No comments:

Post a Comment