Introduction To Laser Cutting by gyvwpsjkko


									?Laser Categories

One category of laser is a CO2 laser. In this type of laser, a mixture of gas is brought
to an energized level so that the laser to function. The mixture holds the elements
nitrogen, carbon and helium. Another type of laser employed in laser cutting is a
neodymium (Nd) laser. This laser has the same employability as the CO2 laser, but
employs a crystal with small amounts of neodymium in it rather than a gas mixture
for the medium. A third type of laser is the laser referred to as neodymium
yttrium-aluminum-garnet (Nd-YAG). The distinction between the two types of lasers
is just in employability. The neodymium laser has a slow repetition speed and can be
used in high energy applications and for boring. Nd-YAG is used for boring and
engraving but is extremely high energy.

Methods of Cutting

There are various methods that a laser slices a material. In vaporization, which is for
objects like non-ferrous metals, the material is heated quicker than it can dissipate the
heat and it is vaporized. The material reaches a very high temperature, 50,000 degrees,
the cut or kerf elongates, and vaporization continues. In the cutting process known as
melt and blow, a high pressure gas blows the molten material away from the cutting
region. The cutting material is most often a metal. In thermal stress cracking, a
delicate material comes into contact with the heat from the laser and a stress crack is
produced. The crack is followed through with the laser beam to complete the cut. This
process is usually used during glass cutting. There are several other procedures of
cutting with a laser also.

Advantages of Using a Laser Cutter

By employing a laser beam to cut, the object is not contaminated during the cutting
action since the object being cut does not come into physical contact with a cutting
tool. The employment of the laser cutter also hurries up the line of production
processes. The light beam is also very accurate, offering an extremely decisive cut.
There is less wear and tear on the machinery involved because there is no wear
involved on the laser. This also saves on costs since there is less restoration involved
in the machinery. From cutting to engraving, laser cutters have several uses and there
are many advantages to employing a laser in the cutting process in a manufacturing

Marc Anderes is the Vice President of Operations of Maloya Laser which specializes
in Metal Manufacturing and Laser Cutting with advanced laser technologies,
servicing aerospace, scientific, transportation, medical and machinery needs.

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