LASER CUTTING APPARATUS AND LASER CUTTING METHOD

摘要

This laser cutting apparatus is a laser cutting apparatus that cuts a workpiece by radiating a laser beam thereon, and is provided with a laser entrance portion to which an optical fiber that transmits the laser beam is fixed and an optical system through which the laser beam radiated from the optical fiber fixed by the laser entrance portion passes, wherein the laser entrance portion includes a moving portion that moves or tilts the optical fiber with respect to the optical system and a fixing portion that fixes the moved or tilted optical fiber with respect to the optical system.