FIBER LASER CUTTING MACHINES

//FIBER LASER CUTTING MACHINES
FIBER LASER CUTTING MACHINES2018-09-21T11:13:29+00:00
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Know Fiber Laser Technology

The modern technology which uses a fiber laser integrated into an optical fiber. It means the laser cavity and beam delivery are both present inside the optic fiber. One of the most effective uses of this technology is in the Fiber Laser Cutting Machines.

Know Fiber Laser Cutting Machines

As the name suggests, these cutting machines which use fiber lasers to carry out operations or help move the production line forward. Tow of the most advanced laser technologies, namely semiconductor laser diodes and active optical fiber are used in conjunction with each other to offer and ease of use. According to Wikipedia, “Rare earth ions are used to dope the active fibers to ensure high-reliability.”

How Do Fiber Laser Cutting Machines Work

Here is a step-by-step working of the Cutting Machine:

  • To pump the active fiber, diodes are used as a light source by lasers
  • In the optical fiber, the laser beam is generated
  • The flexible armored cable is used to transmit the laser beam
  • A powerful small core is generated to produce power lasers - up to a kilowatt
  • The kilowatt power lasers are the most powerful to offer the best beam quality

Laser Machine

Understanding the Technical Process of the Fiber Laser Cutting Machines

As explained in the diagram above, here is an explanation of the technical processes:

  1. A high number of laser diodes with an input of the optical fiber generate inflated radiation. One laser diode lasts for up to 100,000 hours
  2. The use “Bragg mirrors” input produces high-quality laser beams
    • in a wavelength of up to 1070 um, which is about 1/10th of the CO2 laser wavelength,
    • with the divergence of the beam at about 8 mm*mrad, and
    • core thickness of a few micrometers only
  3. The defining feature of the laser beam is the transmission to a distance of 50 m without any change in the quality of the beam.
  4. The laser beam transits from the resonator to the cutting head over fiber. This means, mirrors are not required, reducing
    • costs as costly mirrors no longer need replacement
    • cleaning and adjustment are no longer required for the external optics

Why Laser Beams Are Better Than CO2 Beams

The biggest advantages of using beams with limited wavelengths are:

  • Cut materials considered ‘problematic’ or tough including non-ferrous metals such as brass, copper, and aluminum.
  • Improve focus
  • Increase rate of cutting
  • Lower heat dissipation
  • Smoother cut surfaces