This document discusses the industrial applications of carbon dioxide lasers for cutting and drilling. CO2 lasers are commonly used due to their high output power and ability to operate continuously for long periods of time. Some key applications discussed are laser cutting of metals and non-metals, which works by producing a series of overlapping holes along the cut line. Laser drilling is also discussed as a growing application, allowing for precision drilling of hard and soft materials without tool wear. Overall, CO2 laser machining plays an important role in manufacturing due to its precision, accuracy and ability to process a variety of materials with minimal heat effects.

1. Industrial applications of carbondioxide laser for
cutting and drilling
PRESENTED BY: Ashutosh Aruk
REGISTRATION NO: 22705120007
DEPARTMENT: PHYSICS
GUIDED BY: Dr.PADMAJA PATNAIK

2. CONTENTS
1.INTRODUCTION
2.CO2 Laser
3.INDUSTRIAL APPLICATIONS
4.ADVANTAGES AND DISADVANTAGES

3.  A laser beam has the ability to concentrate large power on a small area. This property of laser is used in a
number of industrial applications like welding, cutting, making holes, etc. These are the following
applications of laser use in industries.
 Laser cutting
 Laser drilling
INTRODUCTION

4. CO2 Laser
The carbon-dioxide laser (CO2 laser) was one of the
earliest gas laser to be developed. It was invented
by Kumar Patel of Bell Labs in 1964 and is still one of
the most useful types of laser. Carbon-dioxide lasers
are the highest-power continuous-wave lasers that are
currently available.
Why CO2 ?
CO2 gas discharge laser operation was characterized in
power cuttting speed and stability over a long time. The
result indicates a good operation optimum power’s and
beam quality with maximum speed. So co2 laser are
used for cutting and drilling of metals and non-metals.
What is CO2 laser ?

5. CO2 Laser
Cunstruction :-
A carbon dioxide laser consists of a quartz
discharge tube with a diameter of 2.5 cm and
a length of about 5 meters. The discharge
tube contains a mixture of CO2 and N2 and
He in the ratio of 1:2:3 with water vapor.

6. Industrial applications oF
carbondioxide laser for cutting and
drilling.

7. CO2 Laser cutting
The removal of a part of material along the cut
from a substance is known as the cutting
process. To cut metal or nonmetal like stainless
steel, titanium, ceramics, glass, plastic, wood,
paper, etc.
The repetition frequency of the pulse of a laser
and the motion of the laser across the substance
or material are adjusted in such a way that a
series of overlapping holes are produced.
Carbon dioxide laser is commonly used in the
cutting process due to its output power.

8. The efficiency of laser cutting can be increased by making use of a gas Jet coaxial with the laser.
In cutting hard materials like stainless steel, carbon steel, Titanium, etc. A highly reactive gas like oxygen is
used along with a laser beam. When a laser beam heats the material, it interacts with oxygen and gets
burnt. The Oxygen gas also helps in expelling the molten material.
In cutting less hard material like good, plastic, paper, etc. Inert gases like nitrogen and organ are used
along with laser beams. This technique of cutting is very efficient for material absorbing most radiation of
laser wavelength. The gas that you used helps in expelling the molten material.
Laser cutting is used in the aircraft and automobile industries, the diamond industry, and the textile industry
for cutting clothes.

9. Advantages
 Good cutting quality
 Speed cutting
 Clean safe and pollution free

10. CO2 Laser drilling
Lasers can be used to drill holes in a variety of
materials, ranging from wood and plastics to
metals and ceramics. Typical examples of laser
drilled holes in practical applications are cooling
holes in aero-engine components, holes in fuel
injection nozzles and ink-jet printer heads and
micro-via's in PCBs.
Drilling is one of the rapidly growing areas which
make use of lasers.

11. Advantages
 hard or soft material can be drilled,
 it is a non-contact process, so there is no tool wear,
 high precision with higher speed can be achieved
 aspect ratio (ratio of the depth to the
diameter of the hole)is high, and
• drilling angular holes is easy.

12. Conclusion
 CO2 laser machining plays an important role in manufacturing industry in terms of precision, accuracy
and quality of the end products.
 The output of the machining depends on process parameters like power, speed and number of passes.
 A variety of engineering materials can be processed with minimum heat affected zone as well as smooth
surface.
 Hence laser beam machining is a promising technique for required output.

13. References:
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[4]V.V.Semak, R.J. Steele, P. W. Fuerschbach, B. K. Damkroger, - Role of beam absorption in plasma during
laser welding, J. Phys. D: Appl. Phys. 33 (2000) 1179–1185.
[5]I.M.Popescu,-Laser Physics and Engineering, Publishing House Tehnica, 2000.
[6]VictorBUJOR, RemusBOBOESCU. - Formulation of modeling problems in laser welding. Publishing
House “Academica Brâncuşi” , TârguJiu,
[7]Eugen Scarlat, -Physics-Photonic Elements: Lasers, Course Notes, 2015.

14. Thank
you