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Laser cutting system. LASER: Light Amplification by Stimulated Emission of Radiation. Introduction. There are two types of lasers used for cutting: the gaseous CO2 laser the solid-state Nd : YAG laser. Applications. Wood Paper Leather Glass Ceramic Metal.

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laser cutting system
Laser cutting system
  • LASER:
  • Light Amplification by Stimulated Emission of Radiation
introduction
Introduction
  • There are two types of lasers used for cutting:
  • the gaseous CO2 laser
  • the solid-state Nd : YAG laser.
applications
Applications
  • Wood
  • Paper
  • Leather
  • Glass
  • Ceramic
  • Metal
  • Steel, Titanium, Paper, Wax, Plastic, Fabric
drawbacks
Drawbacks
  • Material limitations (including crystalline and reflective materials)
  • Producing a piercing hole that can make the pattern design more difficult.
  • Reflected laser light can present a safety hazard
economics of laser cutters
Economics of Laser Cutters

A 1000 – watt laser beam focused to a spot .005 inch in diameter is equal to 5,000,000 watts/square inch

Beam Dia.; .005 - .009 inch

optical unit
Optical Unit
  • Mirrors direct the beam from the source down to the lens
  • the lens then focuses the beam into the desired geometry
  • finally the assist gas is added to remove the molten metal

www.cncmachines.us

laser surface engineering processes
Laser Surface-Engineering Processes

An outline of laser surface-engineering processes. Source: After N. B. Dahotre.

science
Science
  • The Beam
    • .0875-.5 inches from the source
    • ~.001 inch at the work piece
  • Many factors are material and thickness dependent
    • focal length, beam intensity, reed rate, cut with (kerf), cut time, machine configuration
  • Types of cut
    • Vaporization cutting, Melt and Blow, Thermal stress cracking, Burning Stabilized
pace makers
Pace Makers
  • Utilizes laser cutting, welding, marking.
applications1
Applications

Few References: George Chryssolouris, J.C Rozzi, Y.C.Shin, B.P.Bandyopadhyay,S.Jahanmir, S.Harimkar, A.Samant, N.Dahotre

processes and practices
Processes and Practices
  • Current Uses of Laser Cutting Systems
    • Primarily 2D Systems
    • Either melts, burns, or vaporizes away material
    • Used to cut flat-sheet metal and piping/structural materials
conclusion
Conclusion
  • There are many useful applications and uses for Laser Cutting in the current manufacturing market
  • Many new innovations are on their way and new uses for this versatile cutting process are cropping up each year
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