1. Laser Cutting

2. LASER is
L = Light
A = Amplification by
S = Stimulated
E = Emission of
R = Radiation

3. Scientific Applications Industrial Applications Military Applications
Laser Applications
Daily Applications
Medical Applications
Scientific Applications
Industrial Applications
Military Applications
Special Applications
Surgery: 
Eyes
General
Dentistry
Dermatology
Diagnostic Fluorescence
Soft Laser
Basic Scientific
Research  
Spectroscopy
Nuclear Fusion 
Cooling Atoms  
Short Pulses, Study of Fast Processes
Measurements  
Straight Lines
Material Processing
Spectral Analysis
Laser range-finder  
Target designation  
Laser weapons
Laser blinding
Energy Transport 
Laser Gyroscope
Fiber Lasers
Compact disk
Laser printer
Optical disc drives
Optical computer
Bar code scanner
Holograms against forgery
Fiber optic communications
Free space communications
Laser shows
Holograms
Kinetic sculptures

4. Cutting
Welding
Hardening
Melting
Evaporating
Photolithography
3-D Laser measurements
3-D Stereo lithography

5. Vision LWI IV
Nd:YAG laser welding machine

6. Bystronic Bysprint 3015 Co2 laser cutting machine

7. CAB laser marking machine

8. Industrial Laser

9. Laser Cutting
When the focused laser beam impinges on the surface of the workpiece, the material partly vaporises.The resulting cutting kerf is surrounded by molten material which is continuously ejected during the cutting process by a stream of cutting gas .

10. Laser-types semi-conductor - Laser solid - Laser
ruby (Al-Oxide doped with Cr) - Laser
"YAG"(Yttrium-Al-Granat) - Laser
gas - Laser
ions (Ar + Kr + only one gas charge) - Laser
molecular (CO2 + N2 + He) - Laser

11. C02 laser
For cutting and welding the C02 laser is preferred. The used gas is a mixture between 4,5% CO2, 13,5% N2 and 82% He.
Cuttable are metallic materials plastics wood and ceramic.

12. Which materials can be cut?
The C02 laser can be used to cut a wide range of different materials, for instance, steel and steel alloys, galvanised sheet steel, stainless, aluminium, hardened, metal or plastic-coated steels, as well as titanium, niobium, tantalum, nickel and alloys of these metals.
The laser can also be used for cutting a large number of plastics, as well as leather, wood, rubber, wood, cotton, cardboard/paper, various ceramic materials.

13. Cutting gas
When cutting ordinary low-alloy steel, the use of oxygen can increase the cutting speed by %, as compared with the cutting speed using compressed air.
High purity oxygen (better than 99.7 %) gives the highest cutting speed.
The high velocity gas jet serves mainly to:
1 ) aid in material removal by blowing out excess material through the backside of the workpiece;
2) protect the lens from spatter ejected from the cut zone;
3) assist in the burning process.

14. CO2 Laser Cutting gas application
Carbon steel and alloyed steel > used oxygen as cutting gas.
Stainless steel > used inert gas as cutting gas.
Aluminium > used inert gas as cutting gas with high laser energy intensity.

15. Laser Advantage Precision (tolerance and surface finish)
small cut widths (narrow kerfs;0.1mm. for thin material)
the cut edges are smooth, clean, and square.
point source, can move in any direction
Productivity (high speed and low cost)
Very low distortion and metallurgical effect.
Automation (CNC, robot etc.)
Most materials can be processed (hard, abrasive, soft, sticky materials)
Quality and reliability

16. THANK YOU FOR YOUR ATTENTION